Step 1: Provide your DivX files using the button above or by toss and let go.
Step 2: Click the 'Convert' button to start the conversion.
Step 3: Fetch your converted WebM files.
DivX to WebM Conversion FAQ
How do I convert DivX to WebM without re-encoding the video stream?
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There is no stream-copy switch on this page. A few pairs copy a compatible video stream into the WebM container without re-encoding it, MKV to MP4 among them, which is quick and loses no quality. Most pairs re-encode the video. DivX content is MPEG-4 Part 2 video, usually wrapped in AVI, with MP3 or AC-3 audio alongside it. WebM is deliberately narrow: VP8 or VP9 video (AV1 more recently) with Vorbis or Opus audio, and nothing else.
My DivX footage shows comb lines on movement — will that carry into the WebM?
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Yes. DivX content is often interlaced, because the format comes from the broadcast and DVD era, and this converter has no deinterlace option, so the combing carries into the WebM. If it matters, deinterlace the DivX first in a desktop tool such as HandBrake or ffmpeg (the yadif filter). DivX names a codec rather than a container — an MPEG-4 Part 2 implementation that made ripping a DVD to a single CD possible around 1999.
My DivX recordings are split into numbered parts — does WebM have the same limit?
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No, and that is one of the better reasons to move. The DivX container has a practical single-file ceiling that long or high-bitrate recordings run straight into, which is exactly why old captures arrive as part1, part2, part3. WebM has no equivalent limit, so the pieces can be rejoined into one continuous file. DivX needs roughly twice the bitrate of H.264 for the same quality and has no path to HDR, 10-bit colour or resolutions beyond 1080p.
Can I add selectable subtitles once the file is WebM?
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Yes. DivX has no usable soft-subtitle track, so subtitles for DivX content had to be burned into the picture or shipped as a separate sidecar file. WebM carries subtitles as their own selectable stream, so after conversion you can attach an SRT track the viewer can switch on, switch off or restyle.
My DivX has several audio tracks — do they all survive into the WebM?
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No. The converter keeps one audio track, the one with the most channels (normally the main mix), and drops the rest; there is no setting to pick a different one. To keep another track, remux the DivX with that track first (VLC or ffmpeg can do this), then convert it. DivX-certified DVD players are still common, and the codec remains the compatibility floor for a whole generation of set-top hardware. WebM is a poor fit anywhere outside a browser — video editors, phones’ native galleries and Smart TVs largely ignore it.
Will the WebM play in a browser when the DivX would not?
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Yes, and that is usually the whole reason for the conversion. A DivX embedded in a web page either shows a broken player or forces a download, because browsers ship no decoder for it. WebM plays inline through the native HTML5 video element with no plugin and no external application. WebM plays natively in every modern browser with no plugin, no licence fee and no patent exposure, which makes it the default for web-embedded video.
Is WebM a container or a codec, and does that change what I get back?
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It changes what to expect from the output file. One side of this conversion names an encoding rather than a wrapper, so what comes back is that bitstream inside whichever container suits it best — normally MP4 or MKV. The extension reflects the container; the codec is what actually determined the file size and where it will play.
Will multi-track audio survive DivX to WebM conversion?
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Usually not. Most conversions keep one audio track, the one with the most channels (normally the main mix), re-encoded for the WebM container, so commentary and alternate-language tracks are dropped. AVI, WMV, MPEG, FLV, VOB and M4V to MKV keep every track, and so does MP4 to MOV. To keep a different track, remux the DivX with that track first (VLC or ffmpeg can do this), then convert it. WebM is a strict subset of Matroska that Google published in 2010 specifically to give HTML5 video a royalty-free container.
Are subtitle tracks preserved when converting DivX to WebM?
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On some pairs. MP4 to MOV keeps every text subtitle track. AVI, WMV, MPEG, FLV, VOB and M4V to MKV keep every subtitle track: text subtitles are copied or converted to SRT, and picture-based subtitles such as DVD or Blu-ray ones are copied as they are. MP4, MOV and WebM to MKV keep only the first subtitle track (as ASS), and MP4 to WebM keeps the first one as WebVTT. Other pairs, including MKV to MP4 or MOV and WebM to MP4, drop subtitle tracks, and the converter does not burn them into the picture. Subtitles that are already burned in stay, because they are part of the video frames.
What about MKV attachments (fonts, cover art) when going DivX to WebM?
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MKV is the only mainstream container that stores arbitrary attached files (TTF fonts for ASS subs, JPG cover art, fan-translated PDF inserts). Going from DivX to WebM drops these attachments when WebM is not MKV — the elementary streams convert, but the attached payload stays in the source. Keep DivX as a backup if you depend on attached fonts.
Which codec does the WebM output use by default?
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It depends on the WebM container. MP4, MOV and MKV output use H.264, which plays on practically every phone, browser and TV. WebM output uses VP9. AVI, WMV and MPEG output use the older codecs those formats were designed for.
