Smaller files,
same photo.
Compress JPEG, PNG and WebP in your browser, then drag the slider to see exactly what it cost. Free, no signup, and nothing is ever uploaded.
Drag & drop images
JPEG, PNG or WebP, up to 30 MB each. Nothing leaves your device.
Compression
Big savings, no visible difference at normal viewing size.
Why use our tool?
Compression you can actually check.
Most compressors hand you a number and hope you trust it. This one shows you the pixels.
See the quality before you commit
Drag the before/after slider on any image to check exactly what compression cost you — at full size, not a thumbnail.
Nothing leaves your device
Compression runs in your browser. Your photos are never uploaded, stored or seen by us.
Never returns a bigger file
If re-encoding would grow an already-optimised image, the original is kept instead. You can't come out worse.
Three sensible presets
Best quality, Balanced, or Smallest file. Full manual control over quality, size and resolution when you want it.
Batch it
Drop a whole folder, compress in parallel, and download everything as a single ZIP.
Free, no watermark
No signup for single images, no branding on your output, no limits on how you use it.
Questions, answered.
Does compressing an image reduce its quality?+
JPEG and WebP compression is lossy, so some data is discarded — but at the Balanced preset the difference is invisible at normal viewing size. That's exactly why there's a before/after slider on every image: you can check for yourself rather than take our word for it.
Why did my PNG barely shrink?+
PNG is a lossless format, so the quality slider doesn't apply to it — there's no quality to trade away. If you need a PNG much smaller, convert it to WebP in the advanced settings. WebP supports transparency and is typically 25–50% smaller at the same visual quality.
What happens if compression makes a file bigger?+
It keeps the original. Re-encoding an image that's already well optimised can add bytes, so when that happens the tool hands back your original file and marks it as already optimal instead of giving you a worse one.
Is there a limit on how many images I can compress?+
Without an account you can process 10 images per batch, and you can run as many batches as you like. Signed-in users get unlimited batch sizes. Every file is capped at 30MB so your browser stays responsive.
Are my images uploaded to a server?+
No. Everything happens locally in your browser using the same engine a desktop app would use. Nothing is transmitted, nothing is stored, and closing the tab erases it all.
Which format should I export?+
WebP for anything on the web — it's the smallest at a given quality and every current browser supports it. JPEG when you need maximum compatibility with older software. Keep the original format if the file is going somewhere strict about types.
Next to this
Everything here runs in your browser, free and without an account.