FLAC to OGG Converter
Turn lossless FLAC into a much smaller Ogg Vorbis file, with your sample rate, channel count and text tags intact. This is a lossy encode at a fixed quality setting, so keep the FLAC as your master copy.
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Why people re-encode FLAC as Ogg Vorbis
FLAC stores the full waveform, which is exactly what you want for archiving and exactly what you do not want when the file has to ship inside a game build, stream over a slow connection, or fit on a phone alongside a few thousand other tracks. Ogg Vorbis solves that: it is an open, royalty-free lossy codec that Android, Chrome, Firefox and most open-source game toolchains read without extra libraries. Both formats share the same tagging system, which is why this particular pair survives the trip better than most.
We run the conversion server-side with ffmpeg 5.1.9. The FLAC is decoded to PCM and handed to libvorbis in one pass, with no bitrate argument, which means the encoder's default variable-bitrate quality 3. In practice that lands near 112 kbps nominal for a 44.1 kHz stereo album track, lower for mono material and lower again on noise-like content, since VBR spends bits where the music needs them. Nothing else is touched: no volume normalization, no resampling request, no filters.
What carries over: the sample rate (a 96 kHz FLAC stays at 96 kHz), the channel count including 5.1 and other multichannel layouts, and your metadata, because FLAC tags and Ogg Vorbis comments are the same scheme under the hood. What does not: bit depth has no meaning in a Vorbis stream, so the 24-bit precision of a hi-res FLAC is simply gone; embedded cover art is dropped along with every other picture stream; and cue sheets or chapter markers are not written into the Ogg container.
The honest summary is that this is a one-way trip. You cannot get the FLAC back from the Ogg, and re-encoding the Ogg later to any other format compounds the loss. Convert when you need a compact deliverable and keep the FLAC library as the thing you encode from next time.
How to convert FLAC to OGG here
- Pick the FLAC files you want. Album-length or 24-bit/96 kHz files can be large, so check sizes first: 50 MB per file as a guest, 100 MB with a free account, 200 MB on Plus and 1 GB on Pro.
- Drag them onto the dropzone, or click to browse. Up to 10 files go in one request on the free tiers, and you can mix in other audio formats that support OGG output if your folder is not purely FLAC.
- Start the conversion. Each file is encoded with its own ffmpeg command; typical music tracks are done in seconds once uploaded, and anything that runs past 30 minutes of processing is stopped.
- Download the results one by one from the list. There is no zip-all button, so for a full album expect one click per track.
- Grab everything within about four hours. After that the converted files are deleted and you would need to upload again.
What you get from this converter
- libvorbis encoding at the default VBR quality 3, applied consistently to every file
- Tags carried across: title, artist and album arrive in the Ogg file as Vorbis comments
- Original sample rate kept, from 44.1 kHz up to 96 kHz, with no forced downsampling
- Multichannel FLAC stays multichannel; 5.1 is not folded to stereo
- Also accepts WAV, AIFF, ALAC-in-M4A, MP3, AAC and other common sources on the same page
- Output files keep your original names with the .ogg extension, ready to drop into a project folder
Video Tutorial
Watch this step-by-step tutorial to learn how to convert FLAC files to OGG format online for free using MiConvert.com. No software installation required.
Questions about FLAC to OGG
Can I convert FLAC to OGG without losing quality?
No, and no tool can: Vorbis is a lossy codec, so some of the FLAC's information is discarded by design. Quality 3 is a mid-range setting (around 112 kbps nominal for 44.1 kHz stereo), good enough for most casual listening but not identical to the source. If you need no loss at all, keep the FLAC: our encoder settings are fixed, so a smaller lossless file means re-compressing FLAC with a local tool such as flac or ffmpeg where you can set the compression level.
Can I choose q6, q8 or a target bitrate?
Not on this page. We invoke libvorbis without a quality or bitrate flag, so you always get its default, quality 3. For finer control, run ffmpeg or oggenc locally where you can set -q:a yourself, which is also the better route if you want to batch-encode a whole library folder.
What happens to a 24-bit, 96 kHz FLAC?
The 96 kHz sample rate is kept. The 24-bit depth is not preserved in any meaningful sense, because a Vorbis stream does not store integer bit depth. If bit depth matters, keep the FLAC, or convert to FLAC targets where 24-bit does survive.
Do cover art and cue sheets come through?
Text tags do. Embedded artwork does not: every picture stream is dropped during conversion, so an Ogg file produced here will have no cover image. Cue sheets and chapter markers are also not transferred, so a single-file album FLAC becomes a single untracked Ogg file.
Will a multichannel FLAC still be surround?
Yes. Vorbis supports multichannel and we do not insert a downmix, so a 5.1 FLAC stays 5.1. Keep in mind that the fixed quality setting has to cover six channels, which is tight for anything demanding.
My FLAC file is rejected as too large. What now?
Guests are capped at 50 MB per file, which a 24-bit album rip will exceed easily. Signing in for a free account raises it to 100 MB, Plus to 200 MB and Pro to 1 GB. Splitting a long single-file rip into tracks before uploading also works.
Is this the same as converting on Linux with ffmpeg?
The encoder is the same libvorbis, but the settings here are fixed and the work happens on our servers rather than on your machine. If you want specific flags, a recursive folder convert or no upload at all, a local ffmpeg or oggenc command is the better tool.
How long are my files kept?
The FLAC you upload is deleted as soon as its conversion job ends, success or failure. The resulting Ogg file stays available on our download server for roughly four hours and is then removed automatically. File names, sizes and job outcomes are logged on our side, and signed-in users also get a history entry.