FLAC to WEBM Converter
Convert FLAC files to WEBM in seconds, right in your browser. Drop in one file or a whole folder, pick your quality settings and download - nothing is uploaded to a server.
Drop FLAC files here
MP3, WAV, FLAC, M4A, OGG, OPUS, AAC, AIFF, WMA, AMR, MP4, MOV & more · Processed on your device - nothing is uploaded
How to convert FLAC to WEBM
- Click "Choose files" or drag your FLAC files onto the page.
- Make sure "WEBM" is selected as the output format (128 kbps is a good default).
- Optionally click Edit to trim, adjust volume or add effects.
- Click Convert, then Download your WEBM files.
Why convert FLAC to WEBM?
WEBM files are typically 5-10x smaller than FLAC, making them ideal for phones, sharing and streaming.
WEBM is best for web apps, HTML5 audio and browser-based recording. Chrome, Firefox, Edge, Android, VLC. Safari 15+.
Will I lose quality?
WEBM is a lossy format, so some inaudible detail is removed to save space. At 128 kbps or higher most listeners cannot tell the difference from the original FLAC.
FLAC vs WEBM
| FLAC | WEBM | |
|---|---|---|
| Full name | Free Lossless Audio Codec | WebM Audio (Opus) |
| Type | lossless | lossy |
| Best for | hi-fi music collections, archiving CDs and lossless streaming | web apps, HTML5 audio and browser-based recording |
| Typical size | ~5-6 MB at 16-bit / 44.1 kHz per minute | ~0.9 MB at 128 kbps per minute |
| Compatibility | Supported by Android, iOS 11+, Windows 10+, macOS, most hi-fi players and browsers. | Chrome, Firefox, Edge, Android, VLC. Safari 15+. |
| Developed by | Xiph.Org Foundation (2001) | Google (2010) |
FLAC to WEBM: questions
How do I convert FLAC to WEBM?
Open this page, add your FLAC file, make sure WEBM is selected as the output format and click Convert. Your WEBM file is ready to download in seconds.
Will converting FLAC to WEBM lose quality?
WEBM is a lossy format, so some inaudible detail is removed to save space. At 128 kbps or higher most listeners cannot tell the difference from the original FLAC.
Is this FLAC to WEBM converter free and safe?
Yes. It's free with no watermark or sign-up. Files are processed locally in your browser, so your audio is never uploaded or stored on our servers.
Can I convert many FLAC files to WEBM at once?
Yes - add up to 5 files at a time on the free plan (unlimited with Pro), convert them all with one click and download them as a ZIP.
What is the difference between FLAC and WEBM?
FLAC (Free Lossless Audio Codec) is a lossless format, lossless compression that shrinks audio to roughly 50-60% of WAV size without losing a single bit of quality. WEBM (WebM Audio (Opus)) is a compressed (lossy) format: opus audio in a WebM container - the native format of browser recordings and YouTube audio streams.
Does it work on Mac, Windows, iPhone and Android?
Yes. The FLAC to WEBM converter runs in any modern browser - Chrome, Safari, Edge or Firefox - on desktop and mobile. No software to install.