Image Compressor
0.1 – 1.0
Uses createImageBitmap + Canvas. 100% client-side — your image never leaves the browser.
Image Compressor — Free Online Tool
Compresses JPEG, PNG, and WebP images in the browser using the Canvas API with an adjustable quality and maximum dimension, showing the before/after file size and letting you download the result — useful for shrinking images before upload, optimizing web assets, and preparing photos for email, all 100% client-side with no upload.
How to use the Image Compressor
- Open the tool above — it runs entirely in your browser, so your input never leaves this page.
- Paste or type your input into the field, then press the relevant button (e.g. Encode / Decode, Generate, or Convert).
- Copy the result from the output area with the copy button orCtrl/Cmd + C.
- No signup, no upload, and no tracking — repeat as often as you need.
Frequently asked questions
Is the Image Compressor free to use?
Yes. The Image Compressor is completely free, with no signup, no ads inside the tool, and no hidden limits.
Does the Image Compressor upload my data?
No. The Image Compressor processes everything locally in your browser. Your input is never sent to a server, so it stays private even on shared devices.
Does the Image Compressor work offline?
After the page loads, the Image Compressor runs entirely in your browser, so it keeps working without a network connection.
Free & private — why use this Image Compressor
The Image Compressor runs 100% client-side in your browser. Your data is never uploaded to a server, no account is required, and the tool is completely free. It works offline once the page has loaded and is part of a growing collection of privacy-first developer utilities.