Video & Audio Converter
Convert video and audio between MP4, MP3, WAV, M4A, WebM, and GIF — free, in your browser with FFmpeg, nothing uploaded. Extract MP3 from a video or change formats locally.
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.
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 audio file, or click to choose
Converted locally, never uploaded
How it works
- 1
Choose a file
Pick a video or audio file. It loads into your browser — no upload.
- 2
Pick an output format
MP3 to extract audio, MP4/WebM to change video format, GIF for a short clip, and more.
- 3
Convert and download
FFmpeg runs locally; download the converted file when it finishes.
How it compares
| Feature | VritantaNextGen | CloudConvert | Zamzar |
|---|---|---|---|
| Free, no daily limit | |||
| Files never uploaded | |||
| No account needed | |||
| Works offline after load |
Frequently asked questions
How do I convert MP4 to MP3?
Drop your MP4, choose “MP3 (audio)”, and convert. The audio is extracted in your browser and downloaded — your video never leaves your device.
Are my files uploaded?
No. Everything runs locally via FFmpeg compiled to WebAssembly. Confirm in DevTools → Network that nothing is sent.
Why is the first conversion slower?
The FFmpeg engine (~32 MB) loads once into your browser. Subsequent conversions start instantly.
Which formats are supported?
Output to MP3, WAV, M4A, MP4 (H.264), WebM (VP9), or animated GIF, from most common video and audio inputs.
Beyond the free tool
Need this automated for your business?
VritantaNextGen builds data pipelines, dashboards, and AI workflow automation — fixed-scope, fixed-price.
From the guides
Recipes, PC building, evidence-based study systems, and more — the VNG guide library.
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