A file's actual width, height, and size aren't always what the filename or a quick glance suggests, and finding out usually means either opening it in an editor or uploading it somewhere just to see the properties reported back, an unnecessary round trip when the only real need is a quick number check before deciding whether an image actually fits a specific requirement. This tool reads an image's width, height, and file size directly, without uploading it anywhere, supporting JPEG, PNG, and WebP files checked entirely on the local machine. Useful for confirming an image meets a minimum required dimension before submitting it to an upload form, checking a file's exact size before attaching it somewhere with a strict limit, or verifying an image's actual pixel dimensions without opening a full editor or sending the file anywhere first.
Check image width, height, and file size without uploading - supports JPEG, PNG, WebP. The Image Dimension Checker is one of 900+ free developer tools on Toolblip - all open to use without a signup.
How do I use the Image Dimension Checker?
Open the Image Dimension Checker on this page, paste or upload your input, and the result updates as you type. Use the copy button to grab the output, or adjust options to tune the result. Nothing you enter leaves your browser.
Is the Image Dimension Checker free to use?
Yes. The Image Dimension Checker is a free online tool on Toolblip - no signup, no account, no hidden usage limits. It runs in your browser and works on desktop and mobile.
Is the Image Dimension Checker safe and private?
Yes. The Image Dimension Checker processes your data entirely client-side, so nothing you paste is uploaded or stored on any server. It's safe to use with internal snippets, private keys for debugging, or any other sensitive content you'd rather not send to a remote service.
What kind of output does the Image Dimension Checker produce?
The Image Dimension Checker produces clean, formatted output that you can copy or download with a single click. The output is tailored to the tool's purpose — formatted code, converted data, transformed text, or processed media — and is ready for immediate use in your project or workflow.
Does the Image Dimension Checker work on mobile devices?
Yes. The Image Dimension Checker is designed to work on any device with a modern browser, including phones and tablets. The interface adapts to smaller screens, and the core functionality — paste input, transform, copy output — works the same way regardless of your device.
Are my images uploaded anywhere when I use the Image Dimension Checker?
No. The Image Dimension Checker processes images fully client-side using the Canvas API. Your files never leave your browser, so you can safely work with personal photos, design mockups, or confidential assets.
What image formats does the Image Dimension Checker support?
The Image Dimension Checker works with common web image formats including PNG, JPEG, WebP, GIF, and SVG. The specific operations available depend on the format — lossless formats like PNG preserve quality through transformations, while lossy formats like JPEG may show compression artefacts after re-encoding.
Can I use the Image Dimension Checker offline?
Once the page has loaded, the Image Dimension Checker continues to work without an internet connection. Bookmark this page and return to it anytime - all logic runs locally.