Image Compressor

Compress images with adjustable quality. No upload to any server — everything runs in your browser.

Runs in your browser
🗜️
Drop image or click to upload
Format
Quality — 80%

How to Use the Image Compressor

  1. Drop your image onto the upload area or click to browse — JPEG, PNG, and WebP are all supported.
  2. Choose your output format (JPEG, PNG, or WebP).
  3. Drag the quality slider to balance file size against visual quality.
  4. Click Compress and review the before/after file sizes.
  5. Click Download to save the compressed image to your device.

About the Image Compressor

Large images are one of the most common causes of slow-loading websites. This tool compresses JPEG, PNG, and WebP images directly in your browser using the HTML5 Canvas API, meaning your files never touch a server. You get a real-time comparison of original versus compressed file size, so you can find the sweet spot between quality and performance. Converting to WebP can often yield 30–50% smaller files than JPEG at equivalent visual quality, making it ideal for modern web projects.

Frequently Asked Questions

Does compressing an image affect its quality?
Lossy compression (JPEG and WebP) does reduce quality slightly, but quality settings of 75–85% are generally indistinguishable to the eye while delivering significant file size savings. PNG uses lossless compression, so quality is never degraded.
What image formats are supported?
You can upload JPEG, PNG, and WebP images. You can also convert between formats — for example, upload a PNG and download it as a WebP for smaller file sizes with transparent background support.
Is there a file size limit?
There is no hard limit imposed by the tool — the constraint is your browser's available memory. Most images up to 20–30 MB compress without issue. Very large RAW or TIFF files are not supported.
Are my images uploaded to a server?
No. Compression is done entirely in your browser using the Canvas API. Your image never leaves your device, which also means there are no privacy concerns when compressing sensitive images.