Step 1: Share your MP3 files using the button above or by drag and drop.
Step 2: Click the 'Transform' button to start the transformation.
Step 3: Grab your converted FLAC files.
MP3 to FLAC Transformation FAQ
How do I convert MP3 to FLAC?
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Converting MP3 to FLAC re-wraps your MP3 audio in a lossless FLAC container. Note that FLAC cannot recover detail MP3 already discarded — it locks in the current quality without further loss, which is what you want before editing.
Why would I convert MP3 to FLAC?
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The file gets larger and stops accumulating loss on further edits. Useful before editing, but it will not restore anything the MP3 already threw away.
Will converting MP3 to FLAC reduce quality?
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FLAC is lossless, so from this point no further detail is lost — but it cannot rebuild quality your MP3 already compressed away. The FLAC will also be noticeably larger than the MP3 for the same content.
How long does a MP3 to FLAC conversion take?
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Audio conversions are quick — even an hour-long MP3 track usually converts to FLAC in well under a minute.
Which FLAC settings should I choose?
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Pick FLAC when your target app or device requires it; otherwise choose the most widely-supported option in that format family.
Is the MP3 to FLAC converter free?
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Yes. Single-file MP3 to FLAC conversion is free with no signup. A Pro plan unlocks very large files, unlimited batch jobs and advanced features, but everyday conversions cost nothing.
How large a MP3 file can I convert to FLAC?
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Free users can upload MP3 files up to 100 MB — enough for most audio files. Pro users go up to several GB per file and can queue large batches.
Can I convert several MP3 files to FLAC at once?
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Yes. Drop multiple MP3 files in one go and MOV.to converts them to FLAC in parallel. Free accounts handle a couple at a time; Pro accounts have unlimited batch conversion.
Do I need to install any software to convert MP3 to FLAC?
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No. The MP3 to FLAC conversion runs entirely server-side in your browser — no Photoshop, Office, ffmpeg or any local install. Upload, convert, download.
Can I convert MP3 to FLAC on my phone?
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Yes. MOV.to runs in any modern mobile browser, so iPhone, iPad and Android users can convert MP3 to FLAC without an app. The FLAC result downloads straight to your device.
Are my MP3 files kept private during conversion?
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Yes. Your MP3 upload and the FLAC output travel over HTTPS, are never read by a human, and are deleted automatically from our servers shortly after the job finishes. No watermarks, no resale of your data.
Do I need an account to convert MP3 to FLAC?
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No account is required for basic MP3 to FLAC conversions — you can convert immediately. A free account adds conversion history; a Pro plan adds large files, batch jobs and AI tools.