WebM Viewer
Preview WebM files live in your web browser
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Drop your files here for web-optimized processing
*Files deleted after 24 hours
WebM Viewer: How to use the WebM player
1. To play your WebM files, drag and drop or click our select area to play your files
2. Your files will show in queue
3. Our tool will automatically play the first file in the list
4. You can click any item in your playlist.
WebM Viewer FAQ
How do I play a WEBM file in my browser?
Drop your WEBM file onto the player and it streams instantly. WEBM is a modern container supported natively by current browsers, so no plugin or download is needed.
Which video and audio codecs inside WEBM are supported?
The player uses your browser's native decoders, so common WEBM codecs (H.264/AVC, and where the browser supports it H.265/HEVC, VP9, or AV1) play directly.
Does the WEBM player support multiple audio tracks?
If your WEBM file carries multiple audio tracks, the player exposes a track selector so you can switch languages or commentary during playback.
Can I load subtitles with a WEBM video?
Yes. For WEBM you can attach external SRT or VTT subtitle files, and embedded text tracks are detected automatically.
Why does my WEBM video play but have no sound?
Usually the WEBM file uses an audio codec your browser can't decode (e.g. certain AC-3/DTS tracks). Convert the audio track or the whole WEBM to a web-friendly codec.
Is my WEBM file uploaded anywhere?
No. Your WEBM file is decoded locally in the browser and never leaves your device.
Does the WEBM player work on mobile?
Yes. WEBM plays on iOS and Android browsers, with hardware-accelerated decoding on devices that support the contained codec.
Can I seek and scrub through a large WEBM file smoothly?
Yes. WEBM stores seek indexes, so the player can jump to any point quickly even in long, high-bitrate files.
Can I adjust playback speed for WEBM?
Yes, from 0.25x to 2x, with pitch-corrected audio where the browser supports it. Your WEBM file is unchanged.
My WEBM file won't play at all — what should I check?
Confirm the WEBM isn't using an exotic codec your browser lacks. Converting the WEBM to H.264/AAC MP4 maximizes compatibility.
Do I need an account or app to play WEBM?
No. The WEBM player is free, installs nothing, and works immediately in the browser.
Can I convert or compress WEBM here?
Yes. After previewing you can compress, trim, or convert your WEBM to MP4, MKV, WebM, MOV, and more.
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