Compress Images
Lightning Fast
Drag, drop, and compress. Resize, convert, and download—all directly in your browser. **No uploads, no servers, no compromises on privacy.**
Privacy First
Your images are processed locally. They never leave your device.
Instant Results
Real-time compression powered by your browser's speed.
Batch & ZIP
Process multiple files and download them as one neat ZIP archive.
The Compressor
Drag & Drop Your Images Here
or click to select files. Supports JPG, PNG, GIF, WebP. (Max 50 files)
Why Choose Compressly?
Zero Server Interaction
Your files are processed using your browser's memory and CPU. This ensures absolute confidentiality and speed.
Advanced Batch Processing
Handle dozens of images simultaneously. Set parameters once and apply them to the entire batch instantly.
Flexible Output Control
Choose output format (JPG, PNG, WebP), compression quality, and custom resize dimensions.
The Privacy Process
Upload to Browser Memory
You select or drop files. They are loaded into your device's active memory (RAM), not a server.
Local Canvas Processing
JavaScript uses the HTML5 Canvas API to redraw and compress the image based on your quality settings.
Instant Download & Cleanup
The compressed files are bundled into a ZIP and pushed for download. The files are cleared from browser memory automatically.
Frequently Asked Questions
How can I be sure my photos are private?
Compressly uses browser-side technologies (JavaScript and the HTML5 Canvas API). This means the compression logic runs entirely on your computer. There is no server code to process or store your image files, guaranteeing your privacy.
What file formats does Compressly support?
We support all common image formats for input, including JPG, PNG, GIF, and WebP. For output, you can choose JPEG, PNG, or WebP.
Can I use this tool on my phone or tablet?
Yes! The website is fully responsive and uses modern browser APIs compatible with iOS, Android, and all major desktop browsers.