Audio Converter

Create the Best Possible OGG Assets from Your FLAC Master

Upload your FLAC file and get an OGG Vorbis file ready for Unity, Godot, Linux music players, and HTML5 web audio — encoded directly from a lossless source for the best possible OGG quality at any quality setting, with no prior lossy compression degrading the input.

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Create the Best Possible OGG Assets from Your FLAC Master

Free Tool

Audio Format Converter

Upload any audio file, choose an output format, and download the converted result. Supports MP3, WAV, FLAC, AAC, OGG, ALAC, WMA, Opus and M4A.

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Game developer at a workstation with a 3D game scene and an audio asset panel

Drop FLAC Soundtrack Masters Directly into Unity or Godot as OGG

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Drop FLAC Soundtrack Masters Directly into Unity or Godot as OGG

Unity and Godot both use OGG Vorbis as their recommended compressed audio format for music tracks and ambient soundscapes. FLAC files cannot be imported directly by either engine. Game developers and composers who maintain FLAC soundtrack masters can convert to OGG and drop the asset into the project — encoding from FLAC ensures the Vorbis encoder receives a perfect uncompressed signal, producing the best possible game audio asset at the target quality setting.

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Linux desktop with a music player showing an organized music library

Compress a FLAC Linux Library to OGG Without Quality Compromise

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Compress a FLAC Linux Library to OGG Without Quality Compromise

FLAC files on a Linux music server or NAS can be 20 to 30 times larger than equivalent OGG Vorbis files. For everyday listening on Linux through Rhythmbox, Clementine, or Audacious — where the full lossless quality of FLAC is imperceptible — OGG at a high quality setting delivers transparent audio at a fraction of the storage and streaming bandwidth. Encoding from FLAC gives the Vorbis encoder the cleanest possible input.

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Web developer at a bright desk reviewing a browser with an audio-enabled web app

Serve High-Quality OGG for HTML5 Web Audio from Lossless Masters

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Serve High-Quality OGG for HTML5 Web Audio from Lossless Masters

Web developers who maintain FLAC masters for their audio assets can convert to OGG for HTML5 web audio delivery. Chrome, Firefox, and Edge all support OGG Vorbis natively without any licensing fee. Encoding from FLAC ensures the OGG served to web users is the best the Vorbis codec can produce — not a compressed derivative of an already-compressed MP3 or AAC.

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How It Works

Three steps to the best OGG from a lossless source

Upload your FLAC file

Drop your FLAC file onto the tool or click to browse. Soundtrack masters, CD rips, studio exports, and archival recordings are all accepted.

Convert to OGG

Click "Convert". FFmpeg decodes the FLAC losslessly to PCM and encodes it as OGG Vorbis at a high quality setting — one clean encoding pass from a perfect, uncompressed source.

Download your OGG file

Download your .ogg file ready to import into Unity, Godot, a Linux music player, or serve via HTML5 web audio.

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Deep Dive

FLAC to OGG: Lossless Archive to Open-Source Delivery Format

FLAC is the lossless master. OGG Vorbis is the open, patent-free delivery codec for Linux, game engines, and open web. Converting from FLAC ensures the OGG you produce is the best the Vorbis codec can create.

Game developers, Linux users, and web developers converting FLAC masters to OGG

FLAC: The Lossless Master for Open-Source Projects

FLAC (Free Lossless Audio Codec) is open-source and patent-free — well-matched as the archival master for open-source projects and Linux workflows. It stores audio with no quality loss and is supported by every serious Linux media player, DAW, and audio tool. However, FLAC files are large (25 to 35 MB per track) and are not the native import format for Unity, Godot, or HTML5 web audio pipelines.

TypeLossless compression, open-source

Unity importNot supported natively — .flac files are not recognized as audio clips

Godot importNot supported natively — Godot uses OGG Vorbis and WAV

Always keep the FLAC as the archive master. OGG is the delivery derivative for open-source and game engine use.

OGG Vorbis: The Native Open Codec for Games and Linux

OGG Vorbis is a patent-free, open-source lossy codec from Xiph.Org. Unity recommends OGG for compressed background music. Godot uses OGG Vorbis as its primary compressed audio import. Linux distributions include OGG playback in their default media stacks. HTML5 browsers including Chrome, Firefox, and Edge support OGG natively without licensing concerns.

UnityRecommended for compressed music and ambient audio assets

GodotNative compressed audio import format (.ogg)

Browser supportChrome, Firefox, Edge, Opera (not Safari without plugin)

OGG files are typically 5 to 10 times smaller than FLAC at equivalent perceived quality.

Why FLAC Is the Best Source for OGG Encoding

The quality of any OGG file depends on the signal the Vorbis encoder receives. A FLAC source provides perfect, uncompressed PCM — the full original audio signal with no prior encoding artefacts. The Vorbis encoder working from FLAC produces the best possible OGG at any quality setting. Encoding OGG from a prior MP3 or AAC passes already-degraded audio through a second lossy encoder, compounding the quality loss.

FLAC -> OGGOne encoding pass from perfect PCM: best achievable quality

MP3 -> OGGSecond lossy pass: quality ceiling set by prior MP3 encoding

AAC -> OGGSecond lossy pass: compounding degradation from both codecs

Always encode delivery formats — including OGG — from lossless masters whenever they are available.

When OGG Is the Right Destination from FLAC

OGG is the right destination when the audio needs to work in Unity, Godot, a Linux audio pipeline, or a Chrome/Firefox web audio project. For cross-platform sharing including car stereos and legacy devices, MP3 offers broader compatibility. For Apple platforms, AAC inside M4A is the correct format.

Use OGG forUnity, Godot, Phaser, Linux players, HTML5 Chrome/Firefox/Edge web audio

Use MP3 forCar stereos, universal device sharing, podcast platforms

Use AAC/M4A foriPhone, Apple Music, Apple Podcasts, Safari

Our converter uses FFmpeg to decode FLAC losslessly and encode as OGG Vorbis at a high quality setting, extracting the best the codec can deliver from a perfect source.

Benefits

Why Convert FLAC to OGG

🎮

Unity and Godot Ready

OGG is the recommended compressed audio format for Unity and the native format for Godot. Drop the converted file directly into your game project asset folder.

🎯

Best Possible OGG Quality

Encoding from a lossless FLAC source means the Vorbis encoder receives a perfect signal — no quality ceiling from any prior lossy codec.

🐧

Native on Linux

OGG Vorbis plays natively in every Linux music player without any additional codec installation.

⚡

Fast Conversion

Most FLAC files convert to OGG in under 30 seconds on dedicated FFmpeg servers.

Who Uses It

Who Converts FLAC to OGG

Game developers encoding soundtrack masters for Unity and Godot, Linux music library managers compressing FLAC archives, web developers creating open-source audio assets, and audio engineers delivering OGG for open-source projects from lossless masters.

Game Developers Encoding Soundtrack Masters for Unity or Godot

Game composers who deliver lossless FLAC masters to developers can convert those masters to OGG for direct engine import. Unity recommends OGG for compressed music. Godot imports OGG natively. Encoding from the FLAC master ensures the game receives the best possible compressed audio asset — not an OGG derived from an already-compressed export.

UnityCompressed AudioClip type; OGG recommended for music and ambient tracks

GodotNative OGG Vorbis import; drag .ogg into the FileSystem dock

Linux Music Library Managers

Linux users who maintain large FLAC archives for archival quality but want a smaller compressed copy for everyday playback on a laptop, portable player, or slower NAS can convert to OGG. A FLAC library of 50 GB converts to OGG at roughly 5 to 8 GB with no perceptible quality difference for casual listening.

Space savingOGG at quality 8 is typically 5 to 8x smaller than FLAC

Web Developers Building Open-Source Audio Projects

Web developers who maintain FLAC masters for their audio assets — sound effects, music, UI audio — can convert to OGG for HTML5 delivery. Chrome, Firefox, and Edge all support OGG Vorbis without licensing concerns. Encoding from FLAC gives web users the best quality OGG the Vorbis encoder can produce.

Open-Source Project Contributors

Open-source repositories that include audio assets often require patent-free formats. Contributors with FLAC masters can convert to OGG to provide the project with a compressed, patent-free asset that integrates with Linux build pipelines and game engine toolchains without licensing complexity.

Indie Game Composers and Sound Designers

Indie composers who record and mix game audio to FLAC for quality control can build a single lossless master library and convert to OGG for each game engine delivery. This single-source workflow ensures every OGG asset is always a first-generation encode from the FLAC master, never a re-encode of a prior delivery file.

Audio Engineers Delivering for Specific Linux or Web Platforms

Audio engineers who deliver assets for Linux-based interactive media, browser games, and open-source educational tools often receive a format specification of OGG Vorbis. Converting FLAC delivery masters to OGG for these platforms produces the highest possible quality within the required format.

Converts using FFmpeg on dedicated servers.

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Related Tools

Frequently Asked Questions

Why is converting FLAC to OGG better than converting MP3 to OGG?

Converting an existing MP3 to OGG runs already-compressed audio through a second lossy encoder — Vorbis receives a degraded signal and can only work within that quality ceiling. Converting FLAC to OGG gives the Vorbis encoder a perfect, uncompressed PCM signal — the full original recording. The resulting OGG is the best quality Vorbis can produce at the target quality setting, with no prior lossy degradation.

Which Unity audio import type should I use for OGG files?

In Unity, import OGG files as Compressed (Vorbis) audio clips. This is the recommended setting for background music and ambient soundscapes where quality matters. For short sound effects that need to play immediately without decompression delay, WAV with Decompress on Load is sometimes preferred. For music tracks, OGG with Compressed in Memory is the standard choice.

Does FLAC to OGG work for Godot 4 and Godot 3?

Yes. Both Godot 4 and Godot 3 import OGG Vorbis (.ogg) files natively through the FileSystem dock. Drag the converted .ogg file into a Godot project's FileSystem and it will appear as an AudioStreamOggVorbis resource ready to assign to AudioStreamPlayer nodes.

Does OGG work in all browsers for web audio?

Chrome, Firefox, and Edge support OGG Vorbis natively in HTML5 audio and the Web Audio API without any plugin. Safari on macOS and iOS does not support OGG natively. For web projects that must cover all browsers including Safari, serve an MP3 or AAC fallback alongside the OGG.

Should I keep the FLAC after converting to OGG?

Yes. The FLAC is your archive master — a bit-perfect copy of the original recording. The OGG is a delivery derivative for game engines, Linux players, and web. If you ever need a different quality setting, a different codec, or a WAV for professional editing, you can re-generate it from the FLAC without any quality loss.

Is there a file size limit?

The upload limit is 100 MB per file. Most FLAC audio tracks are well within this limit.

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Ready to Convert Your FLAC to OGG?

Upload your lossless master above and get the best possible OGG in seconds.