Upload a FLAC file and get a OGG 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.
OGG here means Vorbis audio in an Ogg container — a patent-free lossy codec that generally beats MP3 at the same bitrate.
Where you run into it: Game audio, Wikipedia and Wikimedia files, Spotify's streaming internals, Linux desktops.
What it costs you: Technical merit never bought it consumer support: plenty of car stereos and older phones simply do not list it.
This is the conversion that actually buys you something: FLAC holds the full signal, and OGG 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. OGG 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 — OGG is one of the formats this converter writes, so the reverse page exists at /ogg-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.