Tool Directory

Free lorem ipsum generator for placeholder text - customize paragraphs, sentences, and word count, then copy instantly for design mockups

Fix missing or incorrect punctuation marks and apply consistent spacing in text

Analyze text for syllable count, sentence length, and average word length

Turn a JSON object or array of objects into an escaped Markdown table with columns from every row

Generate utility CSS classes for spacing, typography, colors, and flexbox layouts

Free online robots.txt generator

Generate security HTTP headers including CSP, HSTS, X-Frame-Options, and more

Generate XML sitemaps for SEO to help search engines index your pages faster

Generate complete color palettes from a single base color with hex and RGB codes

Reduce image width and height to an aspect ratio, compare common presets or read dimensions from a local image

Extract and decode all query parameters from a URL into a clean key-value list

Free word counter for words, characters, lines, and paragraphs as you type - with reading-time estimates

Free character counter for total characters, counts without spaces or newlines, plus letters and digits - live as you type in your browser

Free online duplicate line remover

Free case converter for camelCase, snake_case, kebab-case, UPPER, lower, Title, Sentence, and CONSTANT_CASE - eight outputs from one paste for labels and code identifiers

Free online grammar and spell checker

Estimate Flesch Reading Ease, Flesch-Kincaid Grade and SMOG from pasted text

Free JSON formatter to beautify with two or four spaces, or minify whitespace - invalid JSON shows a parser error so you can fix an API response or config before copying it back

Generate Schema.org JSON-LD structured data for websites

Free URL encode and decode for query values and other URL components - spaces become %20; paste a value, not a full URL, when you need to keep structure intact

Free image cropper with fixed ratio presets (1:1, 16:9, 4:3, 3:2, portrait, passport) - drag to position, then download PNG in your browser

Remove a uniform outer border using the top-left pixel as the background reference and a color-distance tolerance

Pick a color in an uploaded image and make matching pixels transparent, then download PNG

Move a square crop over an image and export it at a selected preset or custom pixel size

Crop images into perfect circles with transparent, white, or blurred backgrounds

Convert images between JPEG, PNG, WebP, and AVIF with quality control and side-by-side preview

Create a favicon from an emoji, short text, or uploaded logo

Free image resizer for exact pixel dimensions in your browser

Free UUID generator for random UUID v4 identifiers in your browser - toggle hyphens and letter case, then copy one value or the last five for fixtures and record IDs

Free Markdown to HTML converter with a sanitized live preview - headings, lists, links, fenced code, and GitHub-style tables, then copy the HTML for publishing

Convert between JSON and YAML with live side-by-side panes

Free online HTML entity encoder and decoder

Free cron expression parser for standard 5-field schedules - plain-English meaning plus the next five local run times in your browser

Generate Cross-Origin Resource Sharing (CORS) headers for your web server

Generate SHA-256 hashes from any text input with one-click copy

Free online screen resolution tester

Free online URL slug generator

Free JavaScript regex tester against sample text - toggle flags, inspect highlighted matches, and read numbered or named capture groups (enter the pattern without surrounding slashes)

Free JWT decoder to inspect header, payload, and signature text in your browser - UTC date claims and expiry status included; decoding does not verify signature, issuer, or audience

Free online cron expression generator

Draft Apache redirects for exact paths, HTTPS and www handling, with a downloadable .htaccess file

Free online meta tag generator

Draft a title, URL and description in an approximate search snippet preview

Free color picker for HEX, RGB, HSL, and CSS values with a live preview swatch - pick any color in your browser

Check text and background contrast for WCAG AA and AAA accessibility compliance

Free unit converter for length, weight, and temperature - switch common metric and imperial pairs with live results in your browser

Free online number base converter

Free percentage calculator for part-to-whole percents, percentage change, discounts, tips, and markup - each in its own clear mode

Visually generate CSS border-radius values with per-corner controls, live preview, and one-click copy

Compile SCSS or indented Sass to CSS in a browser worker

Free online CSS gradient generator

Format or minify well-formed XML without DTD or XSD validation

Format SQL with indentation and optional uppercase keywords; check quote and parenthesis balance

Minify JavaScript code by removing whitespace, comments, and optimizing for production

Mix two or more colors to create new palettes with adjustable blend modes

Build a linear or radial CSS gradient from ordered color stops and an angle

Free QR code generator for URLs, text, WiFi, and vCards - create a code and download PNG or SVG in your browser

Free image compressor for JPEG, PNG, and WebP - quality slider, real byte checks, and original fallback when compression would grow the file

Free strong random password generator that runs in your browser

Free password strength checker with local composition heuristics and a random-model bit estimate - nothing is uploaded

Free random number generator for integers in a min–max range - optional unique batches up to 1,000 values in your browser

Shuffle a list of items into a random order with one-click copy of results

Generate realistic fake names, emails, addresses, and other data for testing and prototyping

Identify likely hash algorithms from a pasted digest by length, format, and known prefixes such as MD5, SHA-1, SHA-256, bcrypt, and Argon2

Free online uptime calculator

Infer TypeScript declarations from a JSON sample

Generate random strings with custom character sets, length, and format for tokens, keys, and test data

Parse URL components into protocol, domain, port, path, query, and fragment parts

Convert any phrase or title into a clean URL-friendly slug with customizable separator

Convert binary strings to ASCII text and vice versa with instant encoding preview

Calculate percentage difference between two values with direction and absolute result options

Free age calculator for years, months, and days between a birth date and an as-of date - plus next birthday countdown

Free countdown timer with hours, minutes, and seconds, Start/Pause and Reset controls

Simulate how colors appear to people with different types of color vision deficiency

Convert HTML to Markdown format with options to preserve links, images, and code blocks

Query JSON with a bounded JSONPath grammar and live array results

Convert between JSON and XML with live side-by-side panes, attribute handling, and root element control

Check CSS syntax and report parsing errors

Check HTML for common tag, nesting and attribute issues with basic lint rules

Preview text with device-installed handwriting fonts and a cursive fallback

Check unquoted ASCII email syntax locally, without DNS, MX or mailbox checks

Validate credit card numbers using the Luhn algorithm and identify the card network

Generate time-ordered UUID v7 values suitable for database keys and distributed systems

Generate random IPv4 or IPv6 addresses for testing, mocking, and network simulations

Validate JSON against a documented draft-07 subset with property-path errors

Inspect the last segment of a pasted path for case, separators and other local formatting rules

Count a keyword or phrase in pasted plain text

Arrange text slides with background colors and export a standalone HTML presentation with navigation

Count words and characters in plain text without formatting or special characters

Generate all possible anagrams from any word or phrase with one click

Show a date-selected quotation from a bundled collection, shuffle it or copy the current text

Free Morse code translator for Latin letters, digits, and common punctuation - encode and decode with slash word breaks in your browser

Free Unix timestamp converter between epoch seconds and local datetime - live two-way conversion in your browser

Generate realistic email addresses with custom domains for testing and prototyping

Convert a dated local time to several IANA time zones

Generate random fractions, decimals, or mixed numbers within a custom range

Apply ROT47 rotation to encode or decode text using the 94-character ASCII range

Find matching truncated SHA-1 or SHA-256 prefixes to demonstrate the birthday paradox

Compare two semantic version strings and see which is greater, equal, or invalid

Generate random IPv6 addresses in full, compressed, or EUI-64 format for testing

Generate locally administered unicast test MAC addresses with Web Crypto

Turn CSV rows and a separate header row into an HTML table

Convert verified images to Base64 data URLs or decode Base64 back to downloadable image files

Generate complementary, analogous, triadic, and split-complementary color palettes from any base hue

Free Open Graph preview tool

Draft Twitter card metadata and preview the manually entered title, description and image

Inspect Unicode characters - view code points, UTF-8 bytes, and HTML entities

Detect hidden homoglyph attacks in domain names and identifiers using lookalike characters

Search a bundled shell-command reference and copy command examples

Parse and identify browser, OS, and device from any User-Agent string instantly

Search a local table of physical constants and their units

Search thousands of emojis by keyword and copy the raw Unicode character

Create an ASCII lowercase slug by replacing punctuation and spaces with hyphens

Convert between JSON and CSV with live side-by-side panes, header detection, and type inference

Free online Unix timestamp converter

Send a GraphQL query and JSON variables directly from the browser and inspect the actual response

Connect to a WebSocket endpoint, send text and inspect sent, received and connection events

Check DNS A/AAAA records and resolver response time, not ICMP ping or host reachability

Build an LDAP search filter from attribute, operator and value rows

Transcribe live microphone input with a supported browser speech service

Convert between CSV and TSV with live side-by-side panes and proper quoting

Check English grammar errors with detailed suggestions for punctuation, style, and clarity

Detect and fix typos, misspellings, and common writing mistakes in any text instantly

Search a predefined JavaScript regular-expression library and try the selected pattern against text

Use CSS as compatible SCSS while keeping its custom properties and var() expressions

Free Roman numeral converter for 1–3999 - live number ↔ Roman conversion with range checks in your browser

Convert fractions and mixed numbers to decimal format with rounding and precision options

Count how often each word appears in text with sorted frequency and percentage breakdown

Check if any word, phrase, or number reads the same forwards and backwards

Free reading time calculator from word count and a words-per-minute speed you choose (100–500 wpm; default 200) - estimate minutes for slower or faster readers

Count syllables in any word or phrase using heuristic vowel group detection

Extract frequent words and phrases locally with optional English stop-word filtering

Convert length and distance between metric and imperial units - meters, feet, inches, and more

Convert weight between kilograms, pounds, ounces, grams, and stone instantly

Create colorful digital sticky notes for reminders, to-do lists, and quick annotations

Generate fake lorem ipsum, pangrams, placeholder text, and random sentences for design mockups

Find and highlight duplicate lines in text with one-click removal and line numbering

Parse and validate .env files, extract keys and values, and detect syntax errors

Resize, compress, and convert PNG, JPEG, and WebP images locally

Inspect HTTP HEAD responses for up to 20 URLs where browser CORS permits

Browse selected historical Google algorithm updates through December 2024

Find the nearest named color for any HEX, RGB, or HSL value from color databases

Explore currency arithmetic using fixed demonstration rates stored in the page

Convert text or images into ASCII art with adjustable font size and character set

Browse printable ASCII, HTML entities, URI escaping and Base64 reference tables

Filter a bundled extension-to-MIME reference by search text and category

Generate CSS Grid layouts with a visual editor - rows, columns, gaps, and areas

Free online CSS Flexbox generator

Edit JSON source with a neighboring expandable tree and in-place Format and Minify actions

Convert between JSON and TOML with live side-by-side panes

Generate Docker CLI commands from a visual form - run, build, compose, and more

Free diff checker for two code snippets - line-by-line additions and removals in your browser, ready to copy as plain text

Explore nested JSON, search keys and values, and copy paths to individual nodes

Encode five HTML-sensitive characters or decode entities with the browser's textarea parser

Calculate an MD5 checksum of UTF-8 text, with other digest algorithms available in the selector

Generate SHA-1 hashes from any text or file with instant copy output

Generate SHA-256 hashes from any text or file with one-click copy

Generate bcrypt password hashes with adjustable cost factor and salt rounds

Generate all possible permutations or arrangements of words and characters in text

Compare two text digests or two pasted hexadecimal hashes and locate differences

Generate current-time UUID v1 values with a random multicast node identifier

Find image URLs in webpage HTML and check whether they load

Generate tints, shades, and tonal variations of any color for consistent design palettes

Convert numbers into human-readable words - great for invoices and checks

Write HTML and see a live rendered preview side by side in real time

Extract dominant colors from any image and get HEX, RGB, and HSL values

Look for adjacent-word pairs from the canonical Lorem ipsum passage in pasted text

Count description characters and check an optional phrase in text or HTML

Build a visual word-frequency cloud from text and export the rendered image

Detect repeated words, filler phrases, and unnecessary redundancy in text

Count lines, empty lines, and non-empty lines in any text instantly

Look up word definitions, synonyms, antonyms, and pronunciation guides

Convert JSON into a Python data assignment containing dictionaries, lists and scalar literals

Format JavaScript, TypeScript, JSON, CSS, HTML and Python with indentation controls

Check XML well-formedness with browser parser errors; DTD and XSD validation are not supported

Convert plain CSS properties to Tailwind CSS utility classes instantly

Convert SQL INSERT VALUES literals to JSON

Read public RDAP registration dates and domain age where registry access permits

Generate tonal variations of a color including warm, cool, muted, and vivid variants

Encode any file or text as a data URI for embedding in HTML, CSS, or XML

Check static HTML for accessibility issues such as missing labels and alternative text

Inspect sitemap XML or indexes and export listed URLs

Convert one image to WebP with adjustable quality, previews, and exact file sizes

Convert PNG images to JPEG with adjustable quality, a background color for transparency, and exact file sizes

Highlight literal keywords in pasted text and copy escaped HTML markup

Generate unordered or ordered pairs and triples from newline- or comma-separated items

Count weighted English sentiment words with a short negation window and show the contributing matches

Check common English word pairings and phrases for natural-sounding writing

Generate catchy article titles from a topic with SEO-optimized headline options

Convert parsed HTML attributes and styles to JSX with explicit limits on executable content

Convert plain CSS to styled-components template literal syntax for React

Check the final URL and redirect flag exposed by a browser request

Generate Open Graph meta tags for social sharing with live preview

Extract top dominant colors from any image and get HEX and RGB values instantly

Convert named colors to hexadecimal and find a nearby named color for a hexadecimal input

Review grammar-service findings grouped by category with highlighted context

Query DNS records for any domain - A, AAAA, MX, TXT, and CNAME records

Generate OpenAPI/Swagger specs from JSON sample data for API documentation

Generate browser-local RSA, ECDSA or Ed25519 keys with OpenSSH public-key output

Check JSON syntax without reformatting the original source and show parsing errors

Reverse characters, words, or lines in any text with one-click copy output

Count character frequency in text for password analysis and cipher detection

Extract words from prose, remove repeated tokens and sort the first retained spellings

Generate random meaningful sentences for placeholder text and writing practice

Resize photos with six presets or custom dimensions, then export as PNG or JPEG with preview

Audit color contrast ratios for WCAG 2.1 AA and AAA compliance with suggested fixes

Convert length, mass and temperature between selected metric and imperial units

Convert whole integers exactly between binary, decimal and hexadecimal, including values above JavaScript’s safe integer range

Count sentences, words, and characters with average sentence length analysis

Verify supported HMAC JWT signatures with a supplied secret and inspect decoded claims

Inspect HTML metadata for missing or duplicate tags without a ranking score

Convert text to speech using your browser with adjustable voice, speed, and pitch

Inspect common EXIF fields and re-encode images in the browser to remove EXIF, XMP, and IPTC personal metadata

Validate UUID v1, v4, and v7 formats and check if a UUID string is properly formatted

Calculate subnet masks, network ranges, usable IPs, and wildcard masks from CIDR notation

Count inclusive addresses between two IPs and report the smallest enclosing CIDR, network, and broadcast

Adjust color saturation, vibrance, and lightness with a live preview and CSS output

Check local English writing heuristics such as repeated words, spacing and possible passive constructions

Generate tints, shades, and tones of any color for consistent design system palettes

Filter grammar-service findings by category and view a separate local tone estimate

Detect lorem ipsum and placeholder text in documents with one-click removal suggestions

Estimate Flesch-Kincaid grade and reading ease from sentence length and approximate syllables

Fit an image into a square PNG canvas with opaque color padding and a chosen square size

Generate hreflang tags for multi-language and multi-regional website versions

Convert between bytes, KB, MB, GB, TB, and PB with binary or decimal units

Convert decimal numbers to binary, hexadecimal, and octal formats instantly

Convert a parsed color into HEX, RGB, HSL, HSV and a simple CMYK representation

Check color contrast ratios and verify WCAG AA and AAA compliance for accessibility

Convert Celsius, Fahrenheit and Kelvin with live results, presets and absolute-zero validation

Convert whole integers exactly between bases 2 through 36

Visualize regex matches with highlighted groups and real-time pattern testing

Build cron schedules visually with a point-and-click editor and plain English output

Generate local keyword ideas from question, preposition and modifier templates

Build a curl command from request method, URL, headers and body fields

Show Celsius, Fahrenheit and Kelvin values together with common temperature presets

Count the top single words and two- and three-word phrases after filtering English stopwords

Apply ROT13 substitution cipher to encode or decode text instantly in your browser

Build cron schedules visually with a point-and-click editor and human-readable preview

Break a JavaScript regex into described tokens and test it against sample text

Paste a cron expression and see the next 10 run times with a human-readable description

Flag phrases that match a small set of English passive-voice patterns

Count Unicode letter runs in pasted text, with optional common-word exclusion and a minimum length

Generate API authentication headers for Bearer, Basic, and AWS Signature schemes

Turn an image 90° at a time with a live editor preview

Flip images horizontally, vertically, or both ways with a live preview

Inspect H1–H6 headings in document order and review skipped levels

Check relative luminance and brightness of any color to predict contrast on light or dark backgrounds

Shift a color warmer (yellow/red) or cooler (blue) by adjusting its temperature value

Convert angles between degrees, radians, gradians, and arcminutes instantly

Shuffle letters inside ASCII words while retaining surrounding punctuation and lines

Check whether word pairs form natural English collocations and get alternatives

Count paragraphs, sentences, and avg words per paragraph in any text

Generate sample CSV data from a header row with customizable columns and row count

Validate cron expressions and see the next 10 scheduled run times instantly

Normalize a UUID's textual case, hyphens and supported wrappers while preserving its value

Inspect title text and character counts from text, HTML or a CORS-accessible URL

Convert pressure between Pa, bar, PSI, atmospheres and mmHg

Show equivalent energy in joules, calories, watt-hours, BTU and foot-pounds

Preview Markdown, download an ASCII text PDF, or use browser Print / Save PDF for richer output

Use the opening password to export encrypted PDFs as password-free rasterized pages

Free Base64 encode and decode for UTF-8 text in your browser - use Swap to round-trip a result; for images and files, open Base64 Image Converter instead

Encode and decode HTML entities

Minify CSS code to reduce file size

Convert between binary, decimal, hexadecimal, and octal number systems

Free tip calculator for bill amount, tip percent, and equal split - presets plus custom tip in your browser

Escape and unescape backslash characters in strings for JSON, JavaScript, regex, and other programming contexts

Format SQL with indentation and optional uppercase keywords; check quote and parenthesis balance

Decode browser-supported AAC audio to 16-bit PCM WAV

Insert blank or source PDF pages, then reorder or delete pages before export

Burn plain SRT or WebVTT captions into WebM with audio

Add comments, highlights, and annotations to PDF files

Draft workflow steps and copy a generic JSON or YAML outline with the settings you entered

Draft a bill of sale from the details you enter, then review and edit it

Add an outside image border and preview width and color changes live

Fill a structured business-plan template and copy the draft into an editor

Create charts and graphs from data

Create collages in eight layouts with live preview and drag ordering

Combine images horizontally, vertically, or in an auto-sized grid with live preview and drag ordering

Crop a freeform region with a live preview and JPEG or PNG export

Crop a centered circle with adjustable size and border, then export transparent PNG

Convert well-formed CSV text to a real XLSX workbook while preserving cell text

Convert CSV rows to XML fields with column names preserved as attributes

Re-encode a selected video range as WebM with audio, up to 60 seconds per export

Inspect browser-decodable image signatures, dimensions, file size and available color-depth data

Add text, images and white overlays to PDF pages; covered content remains recoverable

Export cell values from a selected XLSX sheet to quoted CSV

Export XLSX cell values as wrapped, paginated PDF text

Export a selected XLSX sheet to XML fields; the first row supplies field names

Extract browser-decodable audio from supported containers to 16-bit PCM WAV

Extract supported embedded JPEG and raster images, individually or as a ZIP

Render entered text with browser fonts and export it as PNG

Convert composited GIF animation frames to PNG/APNG

Export a selected composited GIF frame to JPEG with a chosen background color

Export a selected composited GIF frame to a static PNG

Convert the whole image to grayscale with weighted RGB luma and a live preview

Convert the first image in supported HEIC/HEIF files to JPEG using the bundled decoder

Convert the first image in supported HEIC/HEIF files to PNG using the bundled decoder

Convert JPG images to PNG and compare the measured output size

Convert JPG images to WEBP and compare the measured output size

Decode browser-supported M4A audio to 16-bit PCM WAV

Add top and bottom captions to an uploaded image with a live PNG preview

Merge multiple PDF files into one document

Convert decodable MKV audio to 128 kbps mono or stereo MP3

Convert decodable MP4 audio to 128 kbps mono or stereo MP3

Decode browser-supported MP4 audio to 16-bit PCM WAV

Draft a non-disclosure agreement from the details you enter, then review and edit it

Pixelate the whole image with adjustable square blocks and a live preview

Convert PNG images to WEBP and compare the measured output size

Draft poll questions and options for copying into a platform of your choice

Fill press-release fields and download a text or PDF draft

Draft a privacy policy from the details you enter, then review and edit it

Prepare a circle or square profile photo with zoom, pan and color adjustments

Draft a purchase agreement from the details you enter, then review and edit it

Reorder and rotate PDF pages with drag-and-drop and arrow controls

Select and remove unwanted pages from a PDF while keeping at least one page

Adjust edge contrast with live sharpening while keeping the original image dimensions

Add a visual signature to a PDF by drawing, typing, or uploading a signature image

Split a UTF-8 CSV file into smaller downloads by data-row count

Split worksheet values into XLSX files using cached formula results

Convert SVG images to PNG and compare the measured output size

Convert SVG images to JPG and compare the measured output size

Convert SVG images to WEBP and compare the measured output size

Trace a raster image up to one megapixel into SVG paths using selectable tracing presets

Add a visible text or image watermark to every page of a PDF

Convert WEBP images to JPG and compare the measured output size

Convert WEBP images to PNG and compare the measured output size

Create ZIP archives from multiple files

Encode text as four-digit UTF-16 escape sequences or decode those sequences

Convert internationalized domain names to Punycode (xn--) and back

Collapse repeated spaces and tabs, trim line ends and reduce excess blank lines

Calculate dots per inch and pixels per inch for print and screen resolution

Select from entered choices using a visual spinning wheel

Generate timestamp-prefixed ULIDs with cryptographically random suffixes

Add a shadow around an uploaded raster image and export the result as PNG

Turn any emoji into a favicon PNG instantly

Download provider-returned PNG or ICO favicons for up to 20 domains

Calculate a keyed UTF-8 message digest using SHA-1, SHA-256, SHA-384 or SHA-512

Generate random data using the browser's cryptographic random source

Convert entered names to six naming styles; BEM output is an approximate block and element form

Remove ordinary HTML comments and trim whitespace at the start and end of a snippet

Generate numeric PIN strings with selectable length and count

Generate Docker Compose YAML files for multi-container applications with common templates

Compare two UUIDs and inspect differing characters, decoded fields and embedded timestamp information where supported

Check text for duplicate and near-duplicate content with similarity scoring

Find repeated phrases and word patterns in any text block for cleaner writing

Count filler words like actually, basically, and really to improve speaking and writing

Build a signed HS256, HS384 or HS512 JWT from JSON header, payload and a test secret

Generate Mermaid source from ordered lines or simple class and sequence declarations

Visualize sorting, searching, and graph algorithms step by step with animation

Calculate image dimensions for a target scale or size while retaining aspect ratio

Generate HEX and RGB colors with custom alpha transparency for overlays and borders

Decode and validate Base64 PNG, JPEG, WebP or GIF data and download the original raster format

Request an HTTP(S) URL from the browser and inspect the response headers it exposes

Count headline words and local framing signals and show a heuristic summary

Inspect Markdown-style headings, paragraph lengths and list usage

Check text for character variety including uppercase, lowercase, digits, and special symbols

Generate API documentation from endpoint definitions with request/response examples

Format SQL with indentation and optional uppercase keywords; check quote and parenthesis balance

Check whether two UUID spellings represent the same value and show a compact difference summary

Inspect Open Graph markup or edit tags with an approximate social preview

Generate canonical URL tags for webpages to prevent duplicate content SEO issues

Remove backgrounds with local AI segmentation or color-matching modes

Convert bytes to KB, MB, GB, TB with binary (1024) or decimal (1000) base

Convert between square meters, acres, hectares, square feet, and other area units

Convert frequency between Hz, scaled Hz, RPM and radians per second

Convert force between newtons, dyne, pound-force, kilogram-force and other listed units

Generate random colors and copy their represented values

Add a duration to a clock time or find a clock-time interval with next-day rollover

Calculate the elapsed difference between two entered timestamps

Calculate horizontal, vertical and diagonal print pixel density from image and physical dimensions

Extract readable text from pasted HTML with entity decoding and block separation

Generate realistic fake addresses for testing with street, city, state, and zip

Show text length, approximate syllables, sentence lengths and vocabulary diversity

Remove repeated lines, words or sentences while retaining the first occurrence

Generate request code from an endpoint, method, headers and body

Encode HTML attributes for safe use inside element tags and values

View images encoded as Base64 data URLs directly in your browser

Re-encode images to omit source metadata, with JPEG or PNG output

Inspect title text and character counts from text, HTML or a CORS-accessible URL

Edit robots.txt, inspect rule groups and test a path against crawler rules

Calculate relative luminance of any color for WCAG contrast ratio compliance

Convert length, weight, temperature, area, volume and speed with live validated results

Convert octal numbers to decimal, binary, and hexadecimal instantly

Compare a pasted batch of final path segments for formatting issues and possible duplicate clusters

Detect duplicate URLs in a list and suggest canonical versions for SEO

Calculate physical pixel dimensions and preview a CSS viewport at a chosen pixel ratio

Convert HTML tables to JSON arrays with automatic header detection

Shuffle sentence order within each paragraph or across the whole input

Sort text lines alphabetically, by length, reverse order, or remove duplicates in one click

Build cron schedules visually with point-and-click editor and human-readable output

Calculate the Flesch-Kincaid readability grade level and reading ease score for any text

Assemble a JavaScript pattern from selected building blocks and test sample text

Explain what a cron schedule means in plain English and show the next run times

Create polished 1200×630 blog covers, banners, and Open Graph images with editable copy, gradient presets, and one-click PNG download

Generate a contrast matrix for multiple colors to check WCAG AA and AAA compliance

Convert binary numbers to decimal and vice versa with step-by-step calculation display

Configure a CSS animation and copy its keyframes and animation declaration

Convert decimal numbers to scientific notation and expand supported exponent notation

Convert cURL commands to Python requests code with headers, params, and body handling

Convert cURL commands to JavaScript fetch or Axios code with proper async/await syntax

Resample an image using assumed current DPI and export PNG with target DPI metadata

Preview standard CSS cursors and copy the cursor declaration

Send a browser request and report the actual HTTP status and exposed headers

Generate lighter, darker, and tinted variations of any color for design system palettes

Fit up to 20 images into target dimensions, with JPEG or transparent PNG output

Calculate percentage increase or decrease between two values with direction and magnitude

Resize one image locally with aspect ratio lock and PNG, JPEG or WebP output choices

Choose entries from a pasted list with configurable selection behavior

Calculate sale prices, percentage discounts, and savings instantly with original and discounted price

Compare newline-separated lists and show entries only in A, only in B and in both

Escape regex metacharacters so a literal string can be inserted into a pattern

Encode any file to Base64 data string for embedding or decoding Base64 back to a file

Evaluate an arithmetic formula with named scenario values

Split a bill among multiple people with customizable tips, tax, and round-up options

Search the bundled word list using available letters, length bounds and ? wildcard patterns

Fill selected Bash command templates and copy the resulting command

Calculate Body Mass Index from height and weight in metric or imperial units

Split prose into a numbered sentence list with simple abbreviation and decimal protection

Detect commonly confused homophones like there/their/theyre and suggest the correct word

Generate API documentation from endpoint definitions with request/response examples and parameter tables

Extract a 5-color palette from any image and get HEX, RGB, and HSL values for each swatch

Convert between cooking measurements - cups, tablespoons, teaspoons, grams, milliliters, and ounces

Convert nonnegative whole integers between hexadecimal and decimal and show binary

Convert decimal numbers to hexadecimal and binary with instant result and copy button

Generate placeholder paragraphs from a small set of English sentence templates

Build cURL commands with custom method, headers, body, and authentication

Check DNS records for any domain including A, MX, CNAME, TXT, and NS records

Add, subtract, multiply, and divide fractions with step-by-step solutions

Generate alphanumeric identifiers with configurable alphabet, length, count and prefix

Check foreground and background color contrast for WCAG AA and AAA compliance with suggestions

Decode JWT claims and inspect relative claim times and signature byte length

Create PNG tweet cards from available oEmbed content or the paid custom editor

Pick colors from a visual wheel and get HEX, RGB, HSL, and CSS values instantly

Check foreground and background color contrast for WCAG AA and AAA compliance

Convert whole integers exactly between binary, decimal and hexadecimal, including values above JavaScript’s safe integer range

Export v4 notebooks as HTML with sanitized Markdown, plain code and text outputs

Pretty-print a Jupyter notebook’s JSON with two-space indentation

Remove notebook outputs and execution state while preserving source and other metadata

Automatically apply the Oxford comma rule to any list of items

Explore nested JSON as a structure graph, limited to 200 values