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Convert MP3 to FLAC
Convert MP3 audio to FLAC format online for free.
- MP3 to FLAC · Adjustable bitrate
- One audio free · Batch (Pro)
- Runs on your device · Nothing is uploaded
Drop audio files here
MP3, WAV, OGG, M4A, AAC, FLAC — plus MP4, WebM and MKV to pull the audio out. Up to 50.0 MB per file.
Nothing loaded yet
Add a file to start. Everything runs on your device — no upload, no queue.
FLAC stores every sample exactly, so there is no bitrate to choose.
Carried over automatically. Edit any field to change it in the converted file.
Convert MP3 to FLAC
Convert MP3 audio to FLAC with batch support.
Why convert MP3 to FLAC?
Different players, editors, and platforms prefer different codecs. Converting helps you share smaller files, meet upload rules, or improve compatibility.
Why people choose FLAC
- Compatibility:: FLAC is widely supported on phones, browsers, and desktop players.
- File size:: Compressed formats can shrink large recordings for sharing or backup.
- Workflow:: Match the format your editor or podcast host expects.
- Privacy:: Bitrate and sample rate are preserved where the format allows.
MP3 vs FLAC
Formats differ in compression, quality, and compatibility. Pick FLAC when it fits your destination.
MP3 characteristics
- May be lossless or lossy depending on the exact container and settings
- File size varies with duration and bitrate
- Best kept as a source when you are unsure about final delivery
FLAC characteristics
- Optimized for playback targets that support FLAC
- Balances quality and size based on codec settings
- Ideal when you need sharing-ready audio quickly
How it works
Tags and track metadata are carried across where the format supports them.
Steps
- Upload MP3 audio.
- Choose quality options if shown.
- Download FLAC files.
Tips
- Use higher bitrates when music must stay crisp; lower bitrates for voice or demos.
- Going from lossless to lossy saves space but cannot be undone—keep masters when needed.
- Batch multiple clips one by one if filenames need different presets.
MP3 to FLAC converter — frequently asked questions
Is the MP3 to FLAC audio converter free?
Yes. Converting a single MP3 file to FLAC is free with no watermark, for files up to 50 MB and 10 minutes. Batch conversion of multiple MP3 tracks at once is a Pro feature, but one-at-a-time MP3 to FLAC conversions are always free to use as often as you like.
Are my MP3 audio files uploaded anywhere?
No. The MP3 to FLAC conversion happens in one pass, so voice memos, music, and recordings keep their original quality settings.
Will converting MP3 to FLAC affect the sound quality?
It depends on the formats. Converting to a lossy format such as MP3 or AAC can slightly reduce quality, while lossless targets like WAV or FLAC preserve the audio exactly. For most listening the difference is inaudible, and you can keep the original MP3 file to re-export later.
How long can the MP3 audio be?
You can convert short clips and full-length MP3 tracks to FLAC. Very long files or large batches take longer and use more memory, so keep the tab open until the FLAC download is ready.
Can I convert several MP3 files to FLAC at once?
Yes. Batch conversion lets you add many MP3 files and download them all as FLAC in one go, which is available on Pro. Free users convert one clip at a time — ideal for a quick MP3 to FLAC conversion without any cost.
Do I need to install software to convert MP3 to FLAC?
No installation is needed. The MP3 to FLAC converter works in any modern browser on Windows, macOS, Linux, Android, and iOS. Just open the page, add your MP3 audio, and download the converted FLAC file — no apps, plugins, or accounts required.
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