Why convert WMA to OGG?

WMA is locked to Microsoft's ecosystem — many non-Windows tools, web players, and game engines won't decode it. OGG Vorbis is the open, royalty-free alternative: smaller files than MP3 at the same perceived quality, native support in Firefox, Chrome, Android, and most game audio middleware (FMOD, Wwise, Unity).

What bitrate does the OGG use?

We encode with libvorbis at quality level 5 (~160kbps VBR), which is transparent for almost all source material and matches the quality tier of typical 192kbps MP3. VBR adapts the bitrate to content complexity, so quiet sections take less space.

Is there generational quality loss?

Yes — both WMA and Vorbis are lossy, and you're transcoding between them. We pick Vorbis q5 to be transparent above the WMA's quality ceiling, but the WMA's existing artifacts (if any) remain. The result sounds essentially identical to the WMA original.

Where can I actually use OGG files?

Firefox, Chrome, Edge HTML5 , Android natively, VLC everywhere, Audacity, Foobar2000, almost every game engine (Unity, Unreal, Godot), and Wikipedia. The two notable holdouts are Apple's QuickTime and iOS Music app — those need MP3 or AAC.

Are my WMA files uploaded?

No. FFmpeg WebAssembly runs entirely in your browser tab. Your WMA files never leave your device.

Convert WMA to OGG

Convert WMA audio files to OGG Vorbis directly in your browser. OGG is the open, royalty-free format used by Spotify (historically), Wikipedia, and most game engines — better quality than MP3 at the same bitrate, with no Microsoft licensing baggage. No upload needed.

Drag 'n' drop files here, or
click to select files

.wma

OGG

Drop your files and click Convert to get OGG

Files never leave your device — 100% browser-based

//when_to_use

When to Convert WMA to OGG

Converting WMA voice clips to OGG for Unity and Unreal game projects (engines prefer OGG over WMA)
Migrating WMA audio archives to royalty-free OGG for inclusion in Wikipedia / Wikimedia Commons uploads
Converting WMA podcast recordings to OGG for hosting on platforms like Funkwhale that prefer open formats
Preparing WMA tracks as OGG for cross-platform Android/Linux music libraries where WMA support is patchy
Converting old WMA voicemail exports to OGG for embedding in HTML5 <audio> on Firefox-targeted internal tools

//comparison

WMA vs OGG

Property	WMA	OGG
Compression	Lossy (WMA Standard)	Lossy (Vorbis VBR q5)
Typical bitrate	128-192 kbps	~160 kbps VBR
Patent / royalty	Microsoft proprietary	Open, royalty-free
Browser support	Edge / IE only	Firefox, Chrome, Edge
Game engine support	Limited	Unity, Unreal, Godot native
Best for	Windows playback	Open-web, games, Android

//how_it_works

How It Works

Drop your WMA files

Drag and drop or select WMA files. First use loads FFmpeg WASM (~30MB).

FFmpeg decodes WMA

FFmpeg WASM parses the ASF/WMA container and decodes the lossy WMA audio stream into raw PCM samples.

Vorbis VBR encode

PCM is re-encoded with libvorbis at quality level 5 (~160kbps VBR) and wrapped into an OGG container.

Download your OGG files

Your OGGs play in Firefox, Chrome, Android, VLC, Audacity, and import into Unity, Unreal, Godot, and other game engines.

// under the hood

WMA (Windows Media Audio) is Microsoft's proprietary lossy codec inside an ASF container. OGG Vorbis is the Xiph.Org open-source lossy codec inside an OGG container, with no patent encumbrance. Our converter uses FFmpeg WASM to demux the WMA, decode the lossy WMA stream to PCM, then re-encode with libvorbis at quality 5 (~160kbps VBR) and write the result into an OGG container.

//faq

Frequently Asked Questions

Why convert WMA to OGG?: WMA is locked to Microsoft's ecosystem — many non-Windows tools, web players, and game engines won't decode it. OGG Vorbis is the open, royalty-free alternative: smaller files than MP3 at the same perceived quality, native support in Firefox, Chrome, Android, and most game audio middleware (FMOD, Wwise, Unity).
What bitrate does the OGG use?: We encode with libvorbis at quality level 5 (~160kbps VBR), which is transparent for almost all source material and matches the quality tier of typical 192kbps MP3. VBR adapts the bitrate to content complexity, so quiet sections take less space.
Is there generational quality loss?: Yes — both WMA and Vorbis are lossy, and you're transcoding between them. We pick Vorbis q5 to be transparent above the WMA's quality ceiling, but the WMA's existing artifacts (if any) remain. The result sounds essentially identical to the WMA original.
Where can I actually use OGG files?: Firefox, Chrome, Edge HTML5 <audio>, Android natively, VLC everywhere, Audacity, Foobar2000, almost every game engine (Unity, Unreal, Godot), and Wikipedia. The two notable holdouts are Apple's QuickTime and iOS Music app — those need MP3 or AAC.
Are my WMA files uploaded?: No. FFmpeg WebAssembly runs entirely in your browser tab. Your WMA files never leave your device.

//related_converters

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Convert WMA to OGG

When to Convert WMA to OGG

WMA vs OGG

How It Works

Drop your WMA files

FFmpeg decodes WMA

Vorbis VBR encode

Download your OGG files

Frequently Asked Questions

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