Browser Compressor
Free online browser compressor tool. Browser-based, private, no uploads.
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Browser Compressor
Browser-based compression needs no software install and runs on any device with a web browser. Use it right here in your browser — free, private, no uploads.
Why it matters: Browser-based compression needs no software install and runs on any device with a web browser.
How to Browser Compressor
- 1Open the tool and add your images. Nothing is uploaded — compression runs entirely on your device.
- 2Pick a mode — Target Size for exact KB limits, Quality Control for a fixed ratio, or Auto-Optimize for the best balance.
- 3Compress and download. Batch mode bundles every file into a single ZIP.
Best settings for this page: Open the tool, drop your images, and choose the mode that matches this goal.
All compression runs locally in your browser. Your files are not uploaded to any server.
Frequently Asked Questions
All modern browsers: Chrome 70+, Firefox 65+, Safari 14+, Edge 79+. Works on desktop, tablet, and mobile devices. Everything is processed locally in your browser, so your files never leave your device.
Nothing! Just visit our website and start compressing. No downloads, no extensions, no accounts required. Everything is processed locally in your browser, so your files never leave your device. This keeps your data private and avoids waiting for server processing.
Once loaded, our tool works offline! Add to home screen on mobile for instant access without internet. Everything is processed locally in your browser, so your files never leave your device. This keeps your data private and avoids waiting for server processing.
Extremely. Since processing happens locally in your browser, your images never leave your device. Perfect for sensitive or confidential files.
Yes. There is no charge, no account, and no watermark on the output. Everything is processed locally in your browser, so your files never leave your device. This keeps your data private and avoids waiting for server processing.
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