Free Runs in your browser
Shrink a video or audio file to a target size - right in your browser, never uploaded.
How it works
Set it up
Enter your content and style it — everything updates live.
Stays private
It is generated in your browser. Nothing is uploaded.
Export
Download, copy, or share your result in one tap.
Compress video and audio to a specific file size (WhatsApp, Discord, email) entirely in your browser. Nothing is uploaded. Pick a target size and the tool computes the bitrate to fit under it, or use a quality slider. Exports MP4, WebM, MP3, M4A or OGG.
FAQ
Is my file uploaded anywhere?›
No. Everything runs inside your browser using WebAssembly - your video or audio never leaves your device.
How does 'target size' work?›
Pick a size (or a preset like WhatsApp 16MB) and the tool calculates the exact bitrate needed to land just under it, showing the estimate before it runs.
Which formats can I export?›
Video to MP4 (H.264) or WebM (VP9); audio to MP3, M4A (AAC) or OGG (Opus).
Why is it slow on big files?›
Compression happens locally in your browser's memory. Large or long files take longer and need more RAM - lowering the resolution speeds it up a lot.
Need a custom tool?
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