UNIVERSAL MEDIA CONVERTER

MP3 to FLAC Converter

Convert MP3 into FLAC when a workflow specifically requires the FLAC format.

MP4MOVMKVWebMMP3WAVFLAC+ more

✓ No signup✓ Batch up to 3✓ Auto cleanup

Converter readyUp to 400 MB per request • 250 MB per file

250 MB per file400 MB per request45 min max video~30 min auto-delete

Drop MP3 files here or click to browse from your device No files selected MP4, MOV, MKV, AVI, WebM, MP3, WAV, FLAC, M4A, AAC, OGG, OPUS + more

Popular:

Convert to Recommended MP4 is recommended for broad video compatibility.

Output quality

Highlarger file Balancedrecommended Smallermore compression

Smart output: MP4Best overall compatibility for video playback and sharing.

Size depends on source

Advanced settingsFine-tune the output

Maximum resolutionNever intentionally upscales; server limit: 1080p. Audio bitrateUsed by compressed audio outputs and video audio tracks. Sample rate48 kHz is common for video production. Output filename

.mp4

Available for single-file conversion. Trim startOptional HH:MM:SS or seconds. Trim endLeave blank to convert to the end. Remove audioCreate silent video output.

✓ Format-aware settings✓ Live queue progress✓ Files expire after ~30 min

RELATED CONVERTERS

More Useful Conversion Paths

Explore closely related formats without digging through a giant list of every theoretical combination.

MP3 → AACConvert MP3 audio into AAC for a workflow that prefers modern AAC compression. MP3 → M4AConvert MP3 audio into an M4A file for modern mobile and Apple-oriented playback workflows. MP3 → OGGConvert MP3 audio into OGG for applications or open-media workflows that prefer Vorbis audio. MP3 → WAVConvert compressed MP3 audio into WAV for editing or software that requires PCM audio. WAV → FLACConvert WAV audio to FLAC to preserve decoded audio quality while reducing storage requirements. FLAC → MP3Convert lossless FLAC audio into smaller MP3 files for portable playback and sharing. FLAC → WAVDecode FLAC audio into WAV for editing software, production tools or PCM-based workflows.

FORMAT SUPPORT

Video, Audio and Video-to-Audio Conversion

The same FFmpeg-powered engine handles common media workflows without forcing every user through technical codec menus.

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Video Converter

Convert MP4, MOV, MKV, AVI, WebM and other common video files to MP4, MOV, MKV, WebM, AVI or GIF.

MP4MOVMKVWEBMAVIGIF

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Audio Converter

Change MP3, WAV, FLAC, AAC, M4A, OGG, OPUS and other audio files into the format your player or workflow requires.

MP3WAVFLACAACM4AOGGOPUS

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Extract Audio

Upload a video and create MP3, WAV, FLAC, AAC, M4A, OGG or OPUS audio without keeping the video stream.

MP4 → MP3MOV → WAVMKV → FLAC

MP3 TO FLAC GUIDE

Why Convert MP3 to FLAC?

Convert MP3 into FLAC when a workflow specifically requires the FLAC format.

Recommended starting pointFLAC will not recover audio detail already removed from the original MP3.

INPUT

MP3

A highly compatible lossy audio format supported by almost every phone, computer, car stereo and media player.

Portable listening, sharing and smaller audio files.

OUTPUT

FLAC

A lossless audio format that reduces file size without discarding decoded audio information.

Lossless music libraries, archiving and high-quality audio workflows.

How to convert MP3 to FLAC

Upload your MP3 file above.
Keep FLAC selected as the output.
Choose Balanced quality unless your workflow needs another setting.
Open Advanced settings only if you need trimming, resolution, bitrate, sample rate or a custom filename.
Start the conversion and download the finished file when it is ready.

Before you convert

Repeated lossy conversion cannot restore detail removed from the original source. Converting a lossy source such as MP3 to FLAC does not restore missing quality.

Changing a container or codec cannot recreate quality already missing from the source, so keep an important original when possible.

Explore MP3 conversions Explore FLAC conversions