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Supports: WEBA
.weba file or click "Add Files". This is the audio-only WebM file you typically get when saving audio from a web page or extracting the soundtrack from a WebM video. Batch is supported — drop in several WEBA files and each converts in parallel.A WEBA file (.weba, MIME type audio/webm) is an audio-only WebM file — the same Matroska-based container Google launched for the web at Google I/O in May 2010, but carrying only an audio stream and no video. Inside, the audio is compressed with Opus (modern WEBA files) or Vorbis (older ones), both royalty-free codecs. You usually end up with a .weba file without asking for one: browsers and download helpers hand you this extension when you save audio from a web page or pull the soundtrack out of a streamed WebM video.
The problem is rarely quality — it's compatibility. WEBA plays fine in Chrome, Firefox, Edge, Opera, and VLC, but a lot of everyday software still treats it as a stranger:
| Format | Codec / payload | Lossy? | Native playback | Best for |
|---|---|---|---|---|
| WEBA (source) | Opus or Vorbis in WebM | Lossy | Chrome 25+, Firefox 28+, Edge 79+, Safari 16+, VLC | Web audio, extracted WebM soundtracks |
| MP3 | MPEG-1/2 Audio Layer III | Lossy | Effectively universal | Maximum device and app compatibility |
| WAV | Uncompressed PCM | Lossless | Universal | Editing, mastering, CD authoring |
| FLAC | Free Lossless Audio Codec | Lossless | Most players; VLC, foobar2000, Android | Lossless archival at ~half the size of WAV |
| AAC / M4A | Advanced Audio Coding | Lossy | Apple devices, most modern hardware | Apple ecosystem, efficient delivery |
| OGG | Vorbis in Ogg | Lossy | VLC, Firefox, open-source players; not Apple | Royalty-free playback, games |
| Opus | Opus in Ogg/Opus | Lossy | Chrome, Firefox, Edge, VLC; Safari 17.4+ | Keeping the modern codec, low-latency audio |
VLC media player (Windows, macOS, Linux) opens WEBA directly, as does Elmedia Player on macOS. You can also just drag the file into Chrome, Firefox, Edge, or Opera and it will play in the browser tab, since those engines already decode WebM audio. What usually fails is double-clicking the file on a fresh Windows or macOS install — the default music apps don't recognize the extension. If you want a file that opens everywhere without a special player, convert it to MP3 or WAV.
Lossy. WEBA carries Opus (in modern files) or Vorbis (in older ones), and both are lossy codecs — some original audio data is discarded during compression to save space. That means converting WEBA to a lossless format like WAV or FLAC will not restore quality that was already lost; it simply stops any further loss from happening. FLAC is the better lossless target than WAV because it's roughly half the size for an identical waveform.
A small amount, because you're re-encoding from one lossy codec (Opus/Vorbis) into another (MP3) — what audio engineers call transcoding loss. In our testing, a WEBA file at a typical web-audio bitrate converted to a 256 kbps or 320 kbps MP3 is indistinguishable from the source for normal listening. Pick 320 kbps Constant Bitrate, or the "Highest" Audio Quality Preset, if you want maximum headroom; drop to 192 kbps only when file size matters more than the last sliver of fidelity.
Because the audio you saved or downloaded was served inside a WebM stream, and the browser or download tool kept it in its native container rather than re-encoding it. This is extremely common when grabbing audio from web video — the site delivers a WebM audio track, and you receive it as .weba. Nothing is wrong with the file; it just needs converting to a format your editor or player accepts.
WAV or FLAC. Both decode to full PCM that every audio editor — Audacity, Adobe Audition, Premiere, Logic, GarageBand — accepts without complaint, so you avoid the "unsupported format" wall that WEBA hits. Use WAV if your editor or workflow expects uncompressed audio; use FLAC if you want the same lossless quality at about half the file size for storage.
Yes. Your WEBA file is uploaded over an encrypted connection, converted on our servers, and then deleted automatically after a few hours. There's no sign-up, no watermark on the output, and files are never shared or made public. The real limit on a large file is upload size and your connection speed, not any per-file cap.