How to Convert M3U8 to MP4 Right in Your Browser

An M3U8 playlist isn't a video file you can share or play offline — it's a manifest that references many small .ts segments. To get a normal MP4 you can save, rename, or move to another device, those segments need to be downloaded and merged. You can do that entirely in your browser tab, for free, with no install beyond the extension.

How the conversion works

• The extension detects the .m3u8playlist and hands its URL to the website's /convert page.
• The page parses the playlist, picks the best quality variant, and downloads every segment — using the extension's privileged fetch to bypass CORS restrictions that would otherwise block direct downloads.
• FFmpeg, compiled to WebAssembly, runs locally in the page to remux the segments into a single MP4 — no re-encoding, so it's fast and keeps the original quality.
• The finished MP4 is saved straight to your downloads folder.

Why do this in the browser instead of desktop software?

Desktop downloader tools require an install, often bundle unrelated software, and still need you to find the playlist URL yourself. Doing the conversion in-browser means the video data never leaves your machine — it isn't uploaded to a server to be "processed" and handed back to you, which is both faster and more private.

Try it

1. Add the extension to Chrome.
2. Play the stream you want on its original page.
3. Click the extension icon, then hit ⬇ convert next to it.
4. Watch the progress bar, then download your MP4.

There's no cap on file size, resolution, or number of conversions — see why this stays free with no signup.