OGV to FLAC Converter

OGV to FLAC Converter

.ogv is the Ogg video extension from Xiph.Org — an Ogg container that carries a video track (classically Theora, sometimes VP8) alongside an audio track (usually Vorbis, occasionally FLAC, Speex, or Opus). This tool pulls the audio out of that video and writes it to FLAC, the Free Lossless Audio Codec. The video (Theora) is discarded — you keep only the soundtrack — and whether that audio stays truly lossless depends on what codec the OGV's audio track was using, which this page explains before you convert.

OGV Format at a Glance

FLAC Format at a Glance

Does Extracting to FLAC Keep Lossless Quality? (Read This First)

Extracting audio never re-encodes the video; it copies the audio track out of the OGV and writes it as FLAC. Whether the result is genuinely lossless depends entirely on the OGV's audio codec, and there are two cases:

• If the OGV's audio is Vorbis (by far the most common case): Vorbis is lossy, so the audio detail discarded when the video was first encoded is already gone. FLAC then stores that exact audio losslessly from this point forward — it sounds identical to the OGV's soundtrack, but no quality is recovered, and the FLAC file will usually be larger than the whole OGV was. You gain a stable, universally-recognized audio file with tags, not fidelity.
• If the OGV's audio is a FLAC-in-Ogg track (rare): Some OGV files mux a lossless FLAC audio stream alongside the Theora video. Extracting that to a native .flac file is a true lossless transfer — every audio sample is preserved as it moves out of the Ogg wrapper into FLAC's own stream.

How to tell which you have: open the OGV in VLC (Tools > Codec Information) or run it through MediaInfo and read the audio codec line — it will say "Vorbis", "FLAC", "Opus", or "Speex". If it says FLAC, you have the lossless-transfer case; anything else is lossy, and FLAC will preserve that audio exactly without restoring detail.

How to Convert OGV to FLAC

1. Upload Your OGV File: Drag and drop your .ogv video onto the page, or click "Add Files" to browse. You can queue several files to extract audio from with the same settings.
2. Set the Compression Level: Under Advanced Options, the "Compression level" slider runs from 1 to 12 (12 is the default). All levels are lossless — higher means a smaller file and slightly slower encoding, and the audio is bit-for-bit identical at every setting.
3. Adjust Audio Channel or Sample Rate (Optional): Leave "Audio Channel" and "Audio Sample Rate" on "Original" to preserve the source track exactly, or downmix to mono / change the rate for a specific target. Use "Trim" to export only a start time and duration of the soundtrack.
4. Convert and Download: Click "Convert" and download your FLAC. No sign-up, no watermark.

Frequently Asked Questions

Will extracting FLAC from my OGV make the audio sound better?

Not if the OGV's audio is Vorbis, which is the usual case. Vorbis already discarded audio data when the video was encoded, so FLAC preserves what remains losslessly but cannot rebuild what was thrown away. Only when the OGV happens to carry a FLAC-in-Ogg audio track do you keep genuine lossless audio — and even then it sounds the same, it just lives in a standalone, widely-supported file.

What happens to the video when I convert OGV to FLAC?

The video (Theora) track is discarded. FLAC is an audio-only format, so this tool extracts just the soundtrack and writes it to a .flac file. If you want to keep the picture, convert OGV to MP4 to modernize the whole video instead of pulling out the audio.

Why is my FLAC bigger than the entire OGV video it came from?

Because lossy video plus lossy audio compresses far harder than FLAC does. A Theora/Vorbis OGV squeezes both streams aggressively, while FLAC stores the full uncompressed audio waveform and only removes redundancy — often landing around 5-8 MB per minute for CD-quality stereo. A FLAC that is larger than the source OGV is expected when the audio was lossy, not a bug.

What audio codec is actually inside my .ogv file?

Usually Vorbis, but the Ogg container can also carry FLAC, Speex, or Opus audio alongside the Theora video. The .ogv extension only tells you it is video in an Ogg container, not which audio codec rides with it. Open the file in VLC's Codec Information panel or MediaInfo and read the audio line — that determines whether your extraction is a lossless transfer or a lossy-to-lossless wrap.

My OGV came from Wikimedia Commons or an old screencast — will this work?

Yes. Wikimedia Commons and early HTML5 / open-web projects published video as .ogv, and Linux screen recorders also produced it. Those are valid Ogg video files and their audio extracts to FLAC normally. Most such files use Vorbis audio, so expect the lossless-wrap case rather than a quality gain — you are capturing the existing soundtrack, not improving it.

Should I extract to a smaller format instead of FLAC?

If you only need the soundtrack for casual listening or sharing, a lossy format is much smaller — convert OGV to MP3 produces a compact, broadly compatible audio file. Choose FLAC when you want a lossless-grade archive or are feeding the audio into another encoder later. For audio that is already in an Ogg audio file rather than a video, use the OGA to FLAC converter instead.

Does the extracted FLAC keep the title and other tags from the OGV?

FLAC and Ogg both use Vorbis comments for metadata, so standard tags such as title, artist, and album carry over when the OGV has them set. In our testing, a tagged Ogg/Vorbis source kept its title and artist fields after extraction when re-opened in a desktop music library. Many screencasts and web videos carry few audio tags to begin with, so do not be surprised if the FLAC has little metadata to inherit.

How are my files handled, and how long are they kept?

Your OGV is uploaded over an encrypted connection, processed on our servers, and the files are deleted automatically a few hours after conversion. There is no sign-up, no watermark, and your files are never shared or made public.