Step 1: Supply your MP3 files using the button above or by haul and lay.
Step 2: Click the 'Convert' button to start the conversion.
Step 3: Get your converted HLS files.
MP3 to HLS Conversion FAQ
What does the MP3 to HLS converter do?
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It converts a MP3 file into HLS format.
Will the data inside my MP3 be preserved when converting to HLS?
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Yes — the content is mapped to the HLS equivalent. Format-specific extras that HLS does not represent natively are omitted rather than corrupted.
Is the MP3 to HLS conversion reversible?
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You can convert the HLS back to MP3 on this site. If either format involved is lossy, the round-trip is not bit-perfect even though it is visually or audibly close.
What output quality should I expect from MP3 to HLS?
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Default settings target broadcast / web quality — visually identical to the source for most viewers. For archival use, pick the highest quality option in the converter settings.
Is there a file-size limit when converting MP3 to HLS?
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Free conversions have a size limit per file, set by the type of file, and the page tells you when a file is over it. A paid plan removes that limit, so much larger files can be converted.
Can I batch-convert several MP3 files to HLS at once?
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Several files in one job need a paid plan. Free use is one file per conversion, one conversion an hour. On a paid plan you can add several files to one job, then download each result on its own or all of them in one ZIP.
What happens to my MP3 files after the conversion?
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Uploaded files are processed on our own conversion servers, nobody looks at them, and they are not shared. The upload and the converted file are both deleted automatically about 24 hours after the conversion, which leaves time to download the result. See /privacy/ for the full policy.
Where can I open my HLS file?
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HLS opens in the standard tools for its category. Browsers and built-in OS viewers handle the common cases.
Do I need to install software to convert MP3 to HLS?
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No. The converter runs entirely in your browser plus our cloud — no plugin, no install, no admin rights. It works on Windows, macOS, Linux, ChromeOS, iOS, and Android.
Do I need an account to convert MP3 to HLS?
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Yes. One conversion an hour is free, with no account needed, for a file within the free size limit. A paid plan removes the hourly limit and the size limit, and lets you add several files to one job.
Is there an API for MP3 to HLS conversion?
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Yes. Every conversion this site offers is also exposed via a JSON API — see /api/ for endpoints, authentication, and rate limits. MP3 to HLS is one of the supported pairs.
What if my MP3 fails to convert to HLS?
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Failures are usually caused by corrupted source files or unsupported MP3 variants. Re-export from the original app and try again; if it still fails, the contact page forwards the file to support so we can diagnose.
