Upload a FLAC file and get a MP3 back. No signup, no watermark, no limit on how many.
FLAC compresses losslessly: it typically halves a WAV and gives back bit-for-bit the same audio when decoded. It is free, open, and widely supported outside Apple's world.
Where you run into it: Archived rips, Bandcamp and Qobuz downloads, anyone who keeps a music library they intend to still have in ten years.
What it costs you: Half of enormous is still large, and some hardware — car head units especially — will not touch it.
MP3 is the format that made portable music work, and thirty years on it is still the one every device, car stereo, DAW and browser will open without being asked twice.
Where you run into it: Downloads, podcast feeds, old music libraries, anything a client sends you and expects you to just play.
What it costs you: It throws audio away to get small, and at 320 kbps almost nobody can hear what went. What matters is that the discarded part never comes back.
This is the conversion that actually buys you something: FLAC holds the full signal, and MP3 trades a slice of it for a file a fraction of the size. This is where the bitrate setting matters — 320 kbps for music you care about, 192 for general listening, 128 for speech. It is a one-way trip, so keep the FLAC original if it is the only copy you have.
Yes, entirely, and there is no cap on how many files you convert. No account, no watermark, no trial.
Yes — that is the point of it. MP3 discards part of the signal to get small. At the best setting the difference is inaudible to almost everyone on almost any equipment; at 128 kbps it is audible on music and fine on speech.
Much smaller — commonly a tenth of the FLAC at 320 kbps, and less again at lower settings. That reduction is exactly what you are trading a slice of the signal for.
Yes — MP3 is one of the formats this converter writes, so the reverse page exists at /mp3-to-flac/. Remember that going back and forth between two lossy formats degrades the audio a little each time.
The file is uploaded to do the conversion — nothing here runs in your browser — and both your upload and the converted result are deleted the moment the file is sent back. Nothing is stored and nothing is logged beyond the request itself.