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HomeConvertConvert to WEBM

Convert to WEBM

Convert any file to WebM Video format — free, fast, and private

Video
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o arrastra y suelta archivos aquí

Tamaño máximo: 2GB

Tus archivos se procesan localmente en tu navegador. Nada se sube a ningún servidor.

About WEBM Format

WebM Video (.webm)

WebM is an open-source video format developed by Google, specifically designed for efficient web video delivery. WebM uses the VP8 or VP9 video codec (or the newer AV1) with Vorbis or Opus audio, providing excellent quality at small file sizes. VP9 delivers quality comparable to H.265/HEVC while being royalty-free. WebM is natively supported by all major web browsers (Chrome, Firefox, Safari, Edge) and is the preferred format for YouTube's adaptive streaming. The format supports transparent video (alpha channel), HDR, and 4K+ resolutions. WebM's open-source, royalty-free nature makes it attractive for web developers and content creators who want to avoid licensing fees associated with H.264/H.265.

Convert to WEBM from any format

Choose a source format below to convert to WebM Video

MP4WEBMAVIWEBMMKVWEBMMOVWEBMWMVWEBMFLVWEBMM4VWEBMMPGWEBMMPEGWEBM3GPWEBM3G2WEBMVOBWEBMOGVWEBMTSWEBMM2TSWEBMMTSWEBMSWFWEBMASFWEBMDVWEBMF4VWEBMDIVXWEBMXVIDWEBMRMWEBMRMVBWEBM

Frequently Asked Questions

How do I convert files to WEBM?
Simply upload your file using the converter above, select WEBM as the output format, and click convert. The conversion happens instantly in your browser — no uploads needed.
What file formats can be converted to WEBM?
You can convert 24+ formats to WEBM, including MP4, AVI, MKV, MOV, WMV and more. Browse the full list of supported source formats above.
Is converting to WEBM free?
Yes, Convert999 is 100% free with no limits. Convert as many files to WEBM as you need — no registration, no watermarks, no hidden fees.
Is my data safe when converting to WEBM?
Absolutely. All conversions happen locally in your browser. Your files are never uploaded to any server, ensuring complete privacy and security.

Explore WEBM

WEBM Converter

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Format Glossary

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