Step 1: Drop your MP4 files using the button above or by deposit and leave.
Step 2: Click the 'Convert' button to start the conversion.
Step 3: Receive your converted HLS files.
MP4 to HLS Conversion FAQ
How do I convert an MP4 file to HLS?
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Upload your MP4 file using the picker above and the converter detects the source type and runs the MP4 → HLS pipeline. The result downloads automatically when conversion completes; no account needed for one-off conversions.
Can the HLS hold more than one audio track?
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Yes, and it is a real upgrade over MP4. HLS treats every audio stream as a first-class track, so an original-language mix, a dub and a director commentary can live in one file with the player switching between them on demand. HLS adapts to the viewer’s bandwidth in real time and is the only streaming format Safari and iOS support natively.
Is HLS a container or a codec, and does that change what I get back?
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It changes what to expect from the output file. One side of this conversion names an encoding rather than a wrapper, so what comes back is that bitstream inside whichever container suits it best — normally MP4 or MKV. The extension reflects the container; the codec is what actually determined the file size and where it will play. Almost every MP4 in the wild is H.264 video with AAC audio; the container also legally holds HEVC, AV1 and VP9. An HLS stream is an .m3u8 manifest pointing at a ladder of H.264 or HEVC segments at several bitrates, so the player can switch quality mid-playback.
Is the MP4 to HLS converter free?
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Yes — basic MP4 → HLS conversion is free with no registration. Premium adds higher per-file size limits, more parallel batch workers, and removes ads.
How big an MP4 file can I convert to HLS?
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Free accounts: up to 100 MB per MP4 file. Premium: typically 1 GB per file, depending on the MP4 source type. Very large files are split into chunks server-side when the HLS format allows.
Will conversion change the content of my MP4?
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Conversion preserves all information that both MP4 and HLS can represent. Format-specific features that the HLS format doesn't support (e.g. vector data in raster output, formulas in plain-text output) are rasterized or stripped — see the format-specific notes on the result page.
Can I convert many MP4 files to HLS at once?
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Yes — drop multiple MP4 files into the upload zone and they are queued in parallel. Premium has more parallel workers; on a 50-file batch this is the difference between minutes and seconds.
Does the MP4 to HLS converter work on phones and tablets?
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Yes — the UI is responsive and the conversion pipeline runs server-side, so mobile devices upload-then-download just like desktops. iOS and Android browser file pickers (camera roll, Files app) work end-to-end.
Which browsers does the MP4 to HLS converter support?
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Chrome, Firefox, Safari (15+), Edge, and Opera. The converter uses standard `<input type="file">` upload — no WebAssembly or PWA dependencies — so even older browsers work.
Are my MP4 files kept private?
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Yes — uploaded MP4 files are processed in isolated workers and deleted within minutes. We never view, retain, or share content. See /privacy/ for the data-retention window.
What if the HLS download doesn't start automatically?
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Disable any pop-up blocker, then click the download button manually. The result link stays active for 24 hours, so if your network fails mid-download, you can re-trigger from the result page without re-uploading the MP4.
How long does MP4 to HLS conversion take?
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Typically seconds for small files, a minute or two for files near the size cap. Server-side pipeline runs on dedicated workers — your laptop CPU isn't the bottleneck.
HLS breaks a video into short segments plus a playlist so a player can switch quality mid-stream, which is why it arrives as many files rather than one.
