Crunch your files without the hassle.

Compress PDFs, images, MP4 videos, MP3 audio and more directly in your browser. No sign up, no daily website limits, and no complicated setup.

Browser-based privacy Images, PDFs & files No account required

JPG • PNG • WebP • PDF • Documents • More

Compress your files

Compress images directly, or crunch PDFs and other files into a smaller compressed package.

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Drop files here

or click to choose files from your device

Choose files

Uploaded files 0 files

MP3 and MP4 compression runs with FFmpeg directly in your browser. The first media compression may take a little longer while the compressor starts.

Large MP4 and MP3 files: process up to 1.5 GB privately on supported desktop browsers (up to 500 MB on mobile). Device memory and browser limits still apply.

Compression mode

Compression rate

55%

Image resolution

MP4 resolution

Target file size 5 MB target is off

Your crunched files

Images are re-encoded in your browser. PDFs and other files are compressed into a downloadable .gz package. Large files are limited only by your device/browser memory.

Why CompressGecko?

A simple compressor built for people who just want smaller files.

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Up to 1.5 GB on desktop

Large MP4 and MP3 files can be processed privately in supported desktop browsers. Mobile files are limited to 500 MB, and actual capacity depends on your device.

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Private by design

Image compression happens directly in the browser instead of sending your images to a conversion server.

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Gecko-simple

Drop, crunch, download. The interface stays focused on the one thing you came here to do.