WEBM → WAV · Free · No Upload
Free Online WEBM to WAV Converter — No Installation
Convert WebM to WAV (PCM) right in your browser, in seconds. Free, unlimited, and private: your file never leaves your device.
100% local processing: your file never leaves your device. Once the engine is ready, this tab can keep converting offline. Reopening or reloading offline may not work.
Supported formats:Files .webm up to 500 MB — processed locally · Video and virtually any audio format are also accepted — we extract the audio automatically.
How it works
- 01
Upload the WEBM video
Drag the .webm file to the area above or click to select. Files up to 500 MB are accepted — everything is processed locally.
- 02
The conversion runs in your browser
FFmpeg (the same engine used by professionals) runs in WebAssembly right on the page: the audio track is extracted from the video without sending any bytes to servers.
- 03
Download the WAV
In seconds, the .wav file is ready for download, in standard 16-bit PCM, ready for any audio editor.
Frequently asked questions
Why convert WEBM to WAV?
WebM (VP8/VP9) won't open in Premiere, on the iPhone, or on many TVs — a screen recording made with a web tool needs to become MP4 for editing and sharing; the audio from a YouTube lecture becomes MP3. WAV is the WORKING format: lossless editing, accepted by every audio software, and what telephony/IVR systems usually require (8 kHz mono WAV).
Where do WEBM files come from?
Typically from browser screen recordings (Loom, extensions, MediaRecorder), downloaded YouTube videos and silent videos that replace GIFs on websites. Released by Google in 2010; it's a subset of Matroska limited to VP8/VP9/AV1 with Vorbis/Opus — Chrome's MediaRecorder records to it by default.
Is it worth using WAV?
WAV is the WORKING format: lossless editing, accepted by every audio software, and what telephony/IVR systems usually require (8 kHz mono WAV). Microsoft/IBM RIFF container (1991); 16-bit/44.1 kHz stereo is 10.1 MB/min; RIFF has a 4 GB ceiling — longer recordings use W64 or RF64.
Do I lose quality when converting WEBM to WAV?
There is no additional loss: the WAV preserves exactly what exists in the WEBM file. Keep in mind that the original quality of the WEBM (which is already compressed) is the ceiling — converting to a lossless format does not "recover" quality.
What if I need a transcript of this audio?
After converting, you can transcribe the file with AI on VoxScriber: 30 free minutes per month, with automatic punctuation and speaker identification. Ideal for WhatsApp audio messages, meetings, and interviews.
Is my file sent to any server?
No. All processing is local (FFmpeg compiled to WebAssembly running on the page). The file never leaves your device—it even works offline after the page loads.
Is there a size or quantity limit?
The limit is 500 MB per file (browser memory). There is no limit on the number of uses. For larger files, VoxScriber processes them on the server with uploads up to 5 GB.
Need the text from this audio? Transcribe with AI — 30 min free
Create free account →30 minutes/month free. No credit card required.
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Convert WEBM to OGG
OGG compresses well with high quality and is an open, royalty-free format—great for web and games.
Convert MP3 to WAV
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Convert M4A to WAV
Older stereos, car radios, and some corporate systems won't open M4A — an iPhone voice memo arrives and no one can play it.
Convert M4B to WAV
M4B features (chapters, resume-where-you-left-off) only work in Apple apps and dedicated readers — many players won't even open the file.