Image Compressor
Shrink image file size without uploading anything.
🔒 Your files are processed locally in your browser. They are never uploaded to our servers.
Result
What this tool does
Image Compressor reduces an image's file size by re-encoding it at a lower quality, right in your browser. It's handy for email attachments, faster web pages, or staying under an upload limit.
How to use
- Drop an image above, or click to choose a file.
- Pick an output format and drag the quality slider.
- Click Compress image and compare the new size.
- Download the compressed image.
Notes
- Everything runs locally — your image is never uploaded.
- WebP and JPG are lossy; PNG is not offered here since it rarely shrinks photos.
- The size saving is shown next to the result.
Frequently asked questions
How does compression work here?
The image is re-encoded in your browser at the quality you choose. Lower quality means a smaller file. WebP usually gives the smallest size at good quality.
Are my images uploaded?
No. Compression runs entirely in your browser using the Canvas API. Nothing is sent to a server.
Which format should I pick?
Choose WebP for the best size, or JPG for the widest compatibility. Both are lossy, so very low quality can introduce visible artifacts.