Upload your AV1 file, pick the output option, and download the MP4 result.
AV1 to MP4 Converter Online
Convert an AV1 input into an MP4 output - one step, in the browser.
When it fits
Reach for it when your downstream platform accepts MP4 but not AV1 - social media platforms, email clients, and older media players usually require MP4.
Settings
Output sizing and quality are controlled by the option fields above the file picker, and the defaults match the most common downstream use. The audio bitrate selector offers 128, 192, 256, and 320 kbps for the re-encoded track.
How it works
The conversion runs locally in your browser using FFmpeg.wasm, re-encoding to MP4 (H.264/AAC) - your video file is never uploaded to any server. If you need the reverse direction, use the related-tools section.
Frequently Asked Questions
What does AV1 to MP4 Converter Online do?
Convert a AV1 input into a MP4 output - one step, in the browser.
When should I reach for av1 to mp4 converter online?
Typical use: when your downstream platform accepts MP4 but not AV1.
What complementary tools work well alongside av1 to mp4 converter online?
If you need the reverse direction, look at the related-tools section for the MP4-to-AV1 converter.