Drop an image here, or tap to choose one
JPG, PNG, WebP, GIF — nothing leaves your devicePNG is lossless, so the quality slider won't change its size — lower the max dimension instead if a PNG needs to shrink further.
About Cinch
Cinch shrinks image file sizes right in your browser, using the same canvas engine your browser already relies on to draw web pages. Nothing is uploaded to a server — your photo never leaves your device.
Features
- Compress JPG, PNG, WebP and GIF images
- Adjustable quality for JPEG and WebP output
- Optional resizing by maximum dimension
- Live before/after file size comparison
- One-tap download of the compressed result
- Runs entirely in your browser — nothing is uploaded
How to use it
- Drop an image into the box above, or tap it to choose a file.
- Pick an output format — JPEG or WebP for the smallest files, PNG if you need transparency.
- Adjust the quality slider and, if needed, cap the maximum dimension.
- Check the before/after sizes, then tap "Download compressed image."
- Not happy with the result? Adjust the sliders and tap "Recompress."
Frequently asked questions
Is my image uploaded anywhere?
No. Compression happens entirely on your device using your browser's built-in canvas engine. The image is never sent to a server.
Why doesn't the quality slider affect PNG files?
PNG is a lossless format, so it doesn't have a quality setting the way JPEG and WebP do. To shrink a PNG further, lower its maximum dimension or convert it to JPEG or WebP.
Will compressing lose image quality?
JPEG and WebP compression trade some visual detail for a smaller file. Higher quality settings keep more detail at a larger size; lower settings shrink the file further but can introduce visible artifacts.
What's the largest image I can compress?
This depends on your device's memory rather than a fixed limit, since everything runs in the browser. Very large photos may take a moment longer to process.
Can I compress multiple images at once?
Cinch handles one image at a time so you can check the before/after result for each. Repeat the steps for additional images.