Convert any audio file to FLAC format online for free. Fast, secure, and easy-to-use audio to FLAC converter with no software installation required.
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Max file size: 50 MBMax duration: 30 min
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Drag and drop your WebM Audio file, or click to browse for it.
Choose FLAC as the output and click Convert. The conversion runs on our servers, so your device does none of the work.
Download your converted file instantly. The download link expires in 1 hour for security.
Our powerful servers process your files quickly, delivering converted files in seconds.
Convert your files completely free with no hidden costs or subscription fees.
Your file is used only to make your conversion. It is never published or shared, and the download link expires after one hour.
Works directly in your web browser. No software download or installation required.
How the two formats differ on the things that change your result.
| Specification | WebM Audio (source) | FLAC (result) |
|---|---|---|
| Container | WebM (audio-only) | FLAC |
| Developed by | Xiph.Org Foundation | |
| Introduced | 2010 | 2001 |
| Audio codecs | Opus, Vorbis | FLAC |
| Compression | Lossy | Lossless (compressed) |
| Max sample rate | 48 kHz | 192 kHz |
| Max channels | 8 | 8 |
| Gapless playback | Partial | Yes |
| Metadata / tags | Matroska tags | Vorbis comments |
| Approx. file size | 0.48–1.92 MB per minute | 5–7 MB per minute |
| Licensing | Royalty-free | Royalty-free |
| Plays natively on | Native: Web browsers, Android · Needs a player: Windows, macOS, iOS | Native: Web browsers, Windows, macOS, iOS, Android · Needs a player: Smart TVs |
| Best for | web delivery, HTML5 video, open-source projects | long-term archiving, audiophile listening, CD ripping |
Going from WebM Audio to FLAC locks in the quality you have now, it does not recover what was lost when the file was first encoded. That is still the right move before editing, because FLAC will not add a second round of compression damage. Budget for the size jump: about 1.2 MB per minute becomes roughly 6 MB per minute.
This conversion buys reach. Unlike WebM Audio, FLAC is natively supported on Windows, macOS, and iOS, which is usually the reason people convert in this direction.
This conversion moves the file toward a different purpose: WebM Audio suits web delivery, HTML5 video, open-source projects, whereas FLAC is chosen for long-term archiving, audiophile listening, CD ripping.
Tags do not transfer verbatim. WebM Audio stores them as Matroska tags while FLAC uses Vorbis comments, so titles and artwork are remapped and unusual custom fields may not survive.
Converting WebM Audio to FLAC means moving audio out of the WebM (audio-only) container, introduced in 2010, and into FLAC, which arrived in 2001. The two were designed with different priorities, and that is what determines whether this conversion costs you quality, storage, or compatibility.
Developed by Google in 2010, WebM Audio carries lossy-compressed audio (Opus or Vorbis). That sets the upper bound on what any conversion can preserve.
FLAC was introduced by Xiph.Org Foundation in 2001. It holds losslessly compressed audio (FLAC) and plays natively on web browsers, Windows, macOS, iOS, and Android.
After converting your file, you can use Scriptivox transcription services to convert your audio to text. Perfect for meetings, interviews, podcasts, and more.
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