WEBA to WMA Converter

How to Convert WEBA to WMA Online

1. Upload Your WEBA File: Drag and drop your .weba file or click "+ Add Files" to select one or more from disk. Batch upload is supported, and Conversion runs on our servers — your audio is not held on a server.
2. Pick a Quality Preset (or Custom Bitrate): The default is Highest, which produces a WMA v2 stream at roughly 192 kbps stereo — a safe match for music ripped from WebM video. Drop to Medium (~128 kbps) for spoken-word or podcasts, or open Custom Bitrate to set Constant Bitrate (e.g., 128, 160, 192 kbps) or Variable Bitrate for size-vs-quality tuning. Use Specific file size when you need to hit an exact MB target.
3. Set Audio Channel, Sample Rate, and Trim (Optional): Leave Audio Channel and Audio Sample Rate on ORIGINAL to keep the source's stereo/44.1 kHz layout, or downmix to Mono / resample to 22.05 kHz to shrink voice recordings. Use Trim to clip a start point and duration in HH:MM:SS.mmm before encoding.
4. Convert and Download: Click Convert. Files render to standards-compliant WMA v2 (.wma) that Windows Media Player Legacy, Windows 11's Media Player, and most car-stereo USB players recognize. No watermark, no sign-up.

Why Convert WEBA to WMA?

A .weba file is the audio-only segment of a WebM container — typically Opus (sometimes Vorbis) audio inside a Matroska-derived wrapper. It's the format Chrome and Firefox produce when you save audio from MediaRecorder, web-based voice recorders, YouTube audio downloaders, or Web Audio API captures. WebM is excellent for the modern web, but Windows-native audio tooling, in-dash car receivers, and older hardware libraries shipped before 2018 generally don't decode Opus/Vorbis inside a WebM wrapper. WMA — released by Microsoft on August 17, 1999 as part of Windows Media Technologies 4.0 — remains a first-class Windows codec with broad legacy device support.

• Windows Media Player Legacy and car USB players — WMP Legacy still ships with Windows 11 and decodes WMA v2 natively; many factory car head units from 2005-2018 (Ford Sync 1/2, GM IntelliLink, Toyota Entune) advertise WMA on their USB input alongside MP3, but list neither WebM nor Opus.
• Voice notes and podcasts on a tight budget — WMA was tuned for low-bitrate speech; a 32 kbps mono WMA file is intelligible enough for lectures while taking ~14 MB per hour, useful when uploading to a corporate SharePoint with strict attachment caps.
• Archiving to a legacy NAS or Plex library that pre-dates Opus — Plex and Subsonic added Opus-in-WebM support relatively late; older Squeezebox, Sonos S1, and Roku audio-streaming setups still play WMA but skip .weba entirely.
• Windows-only PowerPoint or Office embeds — PowerPoint 2016 and earlier accept .wma inside slides without third-party codecs; embedding .weba requires installing a Matroska/Opus codec pack on every viewing machine.
• Voice-note batch export from web recorders — WebRTC-based recorders and Chrome extensions save speech as .weba. Converting to a 24-48 kbps WMA Voice-style stream yields tiny files that play on any Windows desktop or Xbox 360 USB drive.
• Compatibility hand-off to non-technical recipients on Windows — A double-click on .wma opens Windows Media Player; .weba typically triggers "How do you want to open this file?" because no default app is registered.

WEBA vs WMA — Format Comparison

WMA Bitrate Quick Guide

*WMA v2 (the variant with the widest device support) is typically capped at 192 kbps. For 256-768 kbps you need WMA Pro, which many legacy car head units, Xbox 360, and older Sonos hardware do not decode — stick with WMA v2 unless you've confirmed the target device supports Pro.

Frequently Asked Questions

Why isn't WMA Pro or WMA Lossless an option here?

The WMA encoder targets WMA v2 (sometimes labeled WMAv2 or "Windows Media Audio 9.2"), which is the variant with the widest device support — Windows Media Player Legacy, Xbox 360, older Sonos, and the car-stereo head units that advertise "MP3/WMA" on the bezel. WMA Pro and WMA Lossless are decoded only by a narrower set of hardware; if you specifically need lossless, convert to FLAC or convert to WAV instead — both have far wider modern support than WMA Lossless.

My source .weba is Opus at 48 kHz; will conversion to WMA lose quality?

Yes — WMA v2 is a lossy codec, and you're transcoding from one lossy codec (Opus) to another, so there is a generation loss. For voice and most popular music at 128 kbps WMA or higher the difference is rarely audible on consumer speakers, but for critical listening keep the Opus original archived and use WMA only for the device that requires it. Choosing Highest preset (~192 kbps) minimizes audible artifacts.

Will Windows 11's new Media Player app play the converted file?

Yes. Microsoft's Media Player app (rolled out to Windows 11 starting February 15, 2022, and to Windows 10 in January 2023) plays WMA v2 out of the box. Windows Media Player Legacy is still installed and also opens .wma files. On a fresh Windows 11 install, double-clicking a .wma file launches the new Media Player automatically.

How long can a single file be? Is there a duration cap?

There is no fixed duration cap in the WMA/ASF spec — multi-hour audiobooks at 32 kbps mono (~14 MB/hour) regularly exceed 8 hours in a single file. The practical limit is browser memory during conversion; very long files (multi-GB) are better split using the Audio Cutter before converting, or processed in 1-2 hour chunks.

Why does my converted WMA sound quieter than the WEBA original?

Opus and Vorbis often carry loudness metadata (R128 / replay-gain), and many WebM players auto-normalize on playback. WMA v2 doesn't carry the same metadata, and Windows Media Player applies no normalization by default. The audio data isn't quieter — the original was being boosted at playback. Turn on Volume leveling in Windows Media Player (Now Playing → Enhancements) to apply equivalent normalization to your WMA.

Can I trim the file during conversion instead of converting then trimming?

Yes — under Trim enter a Start time and Duration in HH:MM:SS.mmm format and only that range is encoded to WMA. This is the fastest way to extract a 30-second snippet from a long WebM recording without a second round trip.

Will the file metadata (artist, title, album art) carry over from the WEBA?

WebM tag conventions (Vorbis comments inside Matroska) don't map cleanly to ASF's metadata block, so artist/title/album text usually survives but album art and custom fields often don't. If metadata is important, retag the WMA in MusicBee or MP3Tag after conversion — both are free and handle ASF tags well.

Should I convert to MP3 instead of WMA in 2026?

For most audiences, yes. MP3 has wider device support than WMA today (every car, every phone, every web player) and the file size is comparable at 128 kbps and above. Choose WMA only when the target device specifically requires it — a corporate Windows XP/7 environment, an Xbox 360 USB drive, or a car head unit whose bezel reads "MP3/WMA" but not "AAC/MP4." For anything else, convert WEBA to MP3 is the safer choice.

Is the file I upload kept on your server after conversion?

No. Files convert on our servers and are removed automatically — there's no account, no shared storage, and nothing to delete after the fact. Closing the tab clears the queue.