Compress videos without uploading them
Shrink for WhatsApp, email or the web — without sending your video to a stranger's server.
How it works
1
Drop a video
MP4, MOV, MKV — anything ffmpeg can read.
2
Pick a preset
WhatsApp, email, or balanced. Each preset re-encodes with the right size cap.
3
Download
Get a smaller MP4. Original untouched.
Why use Toolstack's Video Compressor?
100% private
Your file never leaves your device — everything runs locally in your browser.
Instant
No upload, no queue. The result is ready as soon as your laptop finishes the math.
Free forever
No signup, no credit card, no daily limits for the core features.
Open standards
We use proven open-source libraries — no proprietary lock-in, no shady tracking.