100% Browser-Based

Compress files without quality loss

Shrink JPG, PNG, WEBP, and PDF files for free. Everything runs in your browser — your files never leave your device.

Compress ImagesCompress PDFs

Built for speed, privacy, and quality

No uploads. No waiting. No tracking. Just fast compression that keeps your files looking sharp.

Private by design

Your files are compressed locally in your browser. They never touch a server, never get logged, never get stored.

Instant results

No upload queue, no progress bars. Compression happens the moment you drop a file in.

Free forever

No sign-up, no watermarks, no daily limits, no paywalls. Just compression that works.

What you can compress

Image Compressor

Shrink JPG, PNG, and WEBP files while preserving sharpness. Perfect for websites, email, and social media.

Coming soon

PDF Compressor

Reduce PDF file size for email attachments, uploads, and storage — without losing readability.

Coming soon

Frequently asked questions

No. FileCompressor runs entirely in your browser. Your files are processed locally using client-side JavaScript and never leave your device. We have no way to see what you compress.
You control the balance. Our compressor uses modern algorithms that can dramatically reduce file size with barely any visible change — and we let you tune the quality level if you want smaller files.
Images (JPG, PNG, WEBP) and PDF documents. We are actively adding more formats including video, audio, and archive files.
Because everything runs in your browser, the limit depends on your device's memory. Most modern computers handle files up to a few hundred megabytes without trouble.
Yes. No sign-up, no watermarks, no paywalls. The service is funded by occasional ads and runs at zero cost to you.