MP4 to AVI Converter
Convert MP4 videos into the legacy AVI container for older players and software.
MP4 is the modern default, but some older media players, editors, and embedded devices still expect the legacy AVI container.
This converter rewraps your MP4 into AVI entirely in your browser — no upload, no waiting in a queue.
How to convert MP4 to AVI
- 1Drop your MP4 file into the area above — or click to browse.
- 2The output format is already set to AVI. Adjust the quality settings if the format supports them.
- 3Click convert, then download your AVI file. Everything runs locally — nothing is uploaded.
Frequently asked questions
AVI is an older container that some legacy software, hardware players, and editing tools still require. Converting to AVI restores compatibility with those systems.
No. The entire conversion runs locally on your device, so your footage never leaves your computer and nothing is stored on a server.
No. All processing happens entirely in your browser. Your data never leaves your device — nothing is uploaded to any server.
Yes. Once the page has loaded, the tool works completely offline. For the best experience, install PrivaDeck as a PWA from your browser.
Other conversions
Need a different format?
Open the full video converter to switch between MP4, MKV and AVI, choose H.264 or H.265, and convert with hardware acceleration where available.
Open the full Video Converter