100% Secure Client-Side File Compressor
Compress PDF, JPG, PNG, WEBP, MP4, and MP3 files completely in your browser. Files never leave your device, ensuring maximum privacy.
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Image Compressors
Compress JPG, PNG, WEBP, GIF and optimize dimensions visually.
Document Compressors
Compress PDF files safely. Optimize resolutions and downscale pages.
Video Compressors
Shrink MP4, WebM videos using browser hardware acceleration.
Audio Compressors
Optimize MP3, WAV records. Downsample sample rates and mix to mono.
How Client-Side Compression Works
Traditional online compression tools upload your files to their external servers. iCompress does all calculations locally on your device using Canvas, Web Audio, and MediaStream APIs. Your files are never uploaded.
Frequently Asked Questions
Are my files safe?
Yes. Files never leave your computer. Everything happens inside your web browser locally.
Does it cost anything?
No, iCompress is entirely free to use with no daily usage limits.
Why do very large files fail?
Because processing is local, files larger than 100MB may exceed the browser's memory limit on low-RAM devices.