Free FLAC (.flac) to MP3 (.mp3) converter running entirely in your browser — with bitrate, sample rate and channel control. No upload, no signup.
MP3 · WAV · M4A · AAC · OGG · Opus · FLAC · WebM · AIFF
FLAC compresses audio losslessly to roughly half its WAV size — decode it and you get the original samples back bit for bit. It is the archival format of choice for music collections and Bandcamp downloads.
Best for: Lossless archiving; convert to MP3 for portable players.
MP3 is the format every device on earth can play. Its patents expired in 2017, and while newer codecs compress better at the same bitrate, nothing matches its universal support in cars, DJ gear, hardware players and elderly software.
Best for: Maximum compatibility — cars, old players, anything with an audio jack.
Yes — unlimited, watermark-free and without an account. Conversion runs on your own machine, so there is no per-file cost to pass on.
No. Your browser decodes and re-encodes the audio locally; nothing is transmitted, which matters for voice notes, interviews and unreleased tracks.
MP3 encoding is lossy but transparent for most listeners at 192 kbps and above; the bitrate slider gives you full control.
Yes. Drop a whole batch — each file is processed in turn and the results can be downloaded individually or together as a ZIP.
FLAC tags, cue points and other container metadata are not carried through when the file is decoded to PCM samples. The MP3 encoder writes new audio frames without ID3 tags or cover art, so add that metadata afterwards if you need it.