Compress Video
Compress MP4, MOV, and WebM videos in your browser with FFmpeg — free, no upload, no limits. Your video is processed entirely on your device using WebAssembly.
Your file never leaves your device — there's no upload step at all. You can verify it: open your browser's DevTools → Network tab and watch as you use the tool. Zero file uploads.· Updated June 2026.
Try pasting a 1GB video into a chatbot. Exactly. This compresses it right here, no upload.
How this works
Use the tool locally, download the result, and contact VNG only when this needs to become a repeatable workflow.
Drop a video, or click to choose
MP4, MOV, WebM — compressed locally, never uploaded
How it works
- 1
Choose a video
Pick an MP4, MOV, or WebM file. It loads into your browser — nothing is uploaded.
- 2
Pick a compression level
Smaller file or better quality. The tool re-encodes with H.264 using FFmpeg compiled to WebAssembly.
- 3
Compress and download
Watch the progress bar, then download your smaller MP4.
How it compares
| Feature | VritantaNextGen | Clideo | VEED |
|---|---|---|---|
| Free, no daily limit | |||
| Files never uploaded | |||
| No watermark | |||
| No account needed |
Frequently asked questions
Is my video uploaded to a server?
No. Compression runs entirely in your browser using FFmpeg compiled to WebAssembly. Your video never leaves your device — verify it in DevTools → Network.
Why does the first run take a moment?
The FFmpeg engine (~32 MB) loads once into your browser the first time. After that, compression starts immediately.
Is there a size limit?
No imposed limit, but everything runs in your device memory, so very large or long videos can be slow or run out of memory. Shorter clips work best, especially on phones.
What format do I get?
An H.264 MP4, which plays everywhere. Audio is re-encoded to AAC at 128 kbps.
From the guides
Compressing game clips to share? The PC Building hub helps you build the rig that records them.
Need this at scale — or something custom?
This tool runs entirely in your browser — that's the same privacy-first engineering we build for companies: dashboards, AI automation, data pipelines, and client platforms. One person, senior work, fast turnaround.
— Amit, VritantaNextGen · replies within 24 hours