Compress Images Locally in Your Browser
Most image compressors upload your files to a remote server — then compress them there. PicaPic does the opposite: everything happens inside your browser tab using WebAssembly. Your images never leave your device.
Free to use — no account, no upload, no waiting for a server.
Compress images locally →How local image compression works
Drop your images
Drag and drop images directly into PicaPic. They stay on your device — nothing is sent anywhere.
WebAssembly compresses locally
PicaPic uses the same open-source Squoosh codecs as Google, compiled to WebAssembly and running in a Web Worker in your browser tab.
Download instantly
Compressed images are ready in seconds. Download individually or as a ZIP — all without touching any server.
Why compress images locally?
- Client and project files stay private — no third party ever sees them
- No upload queue or server load — compression is instant regardless of file size
- Works without internet once the page has loaded
- No risk of images being cached, stored, or analyzed by a remote server
- GDPR and HIPAA-friendly for sensitive or confidential images
Supported formats
PicaPic compresses and converts between JPEG, PNG, WebP, and AVIF — all locally. AVIF delivers up to 50% smaller files than JPEG at the same visual quality, making it the best format for modern web performance.
Who benefits most from local compression?
- Freelancers and agencies handling client photos
- Medical, legal, or financial professionals with sensitive imagery
- Developers who want fast tooling without server round-trips
- Anyone who values their privacy and data ownership
Try local image compression now — no signup, no server, no compromise.
Open PicaPic free →