MP4 Converter
MP4 Converter is a free online tool that lets you convert AVI, MOV, MKV, WEBM, FLV, WMV, and more to MP4. It runs entirely in your browser — no sign-up, no watermark, and your files are never uploaded.
Free · unlimited · processed privately in your browser
or drag and drop a file here
Supported: MOV, MKV, WEBM, AVI, FLV, WMV, MPEG, MPG, 3GP, OGV, M4V, TS
Your files stay private — 100% in your browser
We never upload your files, photos, or videos to any server. Everything is processed directly in your browser, so your data never leaves your device. That means zero privacy worries — no one else can ever see or store what you convert.
- No uploads
- Processed on your device
- No sign-up needed
About MP4 Converter
MP4 Converter is a free online tool that lets you convert AVI, MOV, MKV, WEBM, FLV, WMV, and more to MP4. There is no sign-up, no watermark, and no limit on how many times you can use it. The whole process happens on your own device using your browser, so your media is never uploaded and nobody else can access it.
After you upload
MP4 Converter needs no settings — the conversion starts as soon as you run it and finishes in your browser, so nothing is uploaded.
How to use MP4 Converter
- 1Click Choose Files and upload your file.
- 2Adjust any available options for your needs.
- 3Press Run to process the file in your browser.
- 4Download your result instantly.
Frequently asked questions
Is MP4 Converter free?
Yes — MP4 Converter is free to use as often as you like, with no account, no caps, and no watermark on the output.
Do I need to install anything?
Nothing to install. MP4 Converter works inside your web browser on desktop and mobile — no app, codecs, or plugins needed.
Are my files uploaded to a server?
No. Your media files are processed on your own device and never sent to a server, so they stay private.
How to convert a video to mp4?
Use MP4 Converter above: upload your file, run it, and download the result. It is free with no limits or sign-up, and the whole process happens on your own device using your browser, so your media is never uploaded and nobody else can access it.
How to convert mkv to mp4?
Use MP4 Converter above: upload your file, run it, and download the result. It is free with no limits or sign-up, and the whole process happens on your own device using your browser, so your media is never uploaded and nobody else can access it.
How to convert mov to mp4?
Use MP4 Converter above: upload your file, run it, and download the result. It is free with no limits or sign-up, and the whole process happens on your own device using your browser, so your media is never uploaded and nobody else can access it.