Convert FLAC to OGG online

Your FLAC file is converted to OGG right here in your browser, using FFmpeg compiled to WebAssembly. Nothing is uploaded to us, the audio never leaves your device. Quality is preserved and the download is ready in seconds.

What is a FLAC file?

FLAC (Free Lossless Audio Codec) compresses audio the way ZIP compresses files: the data gets smaller (typically 50 to 60% of WAV size) but decodes back to exactly the original samples. Nothing is lost, ever.

FLAC is the archiving and audiophile standard: music collections, radio archives and oral-history projects use it to keep perfect masters at half the storage cost of WAV.

Why OGG?

OGG is an open, royalty-free container, most commonly carrying Vorbis-encoded audio. It was built as the free-software answer to MP3 and delivers comparable or better quality at the same bitrate.

Convert to OGG for game development, open-source projects, or platforms that specifically ask for it. It is technically excellent and free of patent baggage. FLAC playback support is broad but not total, iPhones handle it awkwardly, and some editors still prefer WAV, and the files remain far larger than any lossy format.

Frequently asked questions

Will converting FLAC to OGG lose quality?

You trade a little fidelity for a much smaller file. OGG is a lossy format, so detail the ear is least likely to miss is discarded during encoding, for speech and most listening the difference is inaudible at the high-quality settings this converter uses. Keep your original FLAC as the master and treat the OGG as the sharing copy.

Is it free?

Yes, completely, with no account and no watermark. The conversion runs on your own device, so it costs us nothing to let you use it. The only limit is file size: up to 50 MB, which is what a browser can hold in memory comfortably.

Do I need to install anything, or upload my file?

Neither. It runs entirely in your browser using FFmpeg compiled to WebAssembly. Your audio is never sent to us, which is also why it works on a slow connection, only the page downloads, not your file.

Need a transcript of the audio?

Autrans also transcribes audio in Nigerian English, Pidgin, Yoruba, Hausa, Igbo, French, and Spanish.