Top 5 Developer Tools You Should Bookmark
From JSON formatters to cron parsers, these five browser-based tools will save you time on the daily. Here's why each one deserves a spot in your bookmarks bar.
Top 5 Developer Tools You Should Bookmark
Every developer has that drawer of half-written scripts and one-off terminal commands they use once a month and forget immediately. Stop that. These five tools do the job better, in your browser, without you needing to remember anything.
1. JSON Formatter & Validator
Debugging minified JSON is a nightmare. A good JSON formatter takes ugly, one-line JSON and spits out readable, indented output - with validation so you know exactly which character broke your API response. Pasting malformed JSON and getting an instant, clear error beats staring at a blank "SyntaxError" line any day.
👉 JSON Formatter & Validator →
2. Base64 Encoder / Decoder
Encoding images as data URIs, working with APIs that return Base64 strings, decoding configuration values - Base64 comes up constantly. Having a fast, reliable encoder/decoder that handles text and files alike is essential. Some days I use this tool five times before lunch.
3. Regex Tester
Writing regex without testing it is a gamble. A good regex tester shows you matches in real-time, explains capture groups, and highlights exactly what's matching and what isn't. It's the difference between guessing and knowing - and saves you from that moment when a broken regex slips into production.
4. Cron Expression Parser
Cron syntax is notoriously hard to read. */15 9-17 * * 1-5 - is that every 15 minutes during business hours on weekdays, or something else? A parser that translates cron into human-readable descriptions and shows upcoming run times is invaluable when you're debugging why your scheduled job ran at 3 AM instead of noon.
5. Hash Generator
MD5, SHA-1, SHA-256 - you need hashes for API signatures, file integrity checks, and more. Having a tool that handles text input and file drops, with instant output across multiple algorithms, saves constantly switching to a terminal.
Bookmark these five categories and you'll handle the vast majority of small developer tasks without leaving your browser. No installs, no sign-up, no tracked data. Just open the tab and go.
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