Free, in your browser, no signup: files delete themselves within an hour.
One file at a time for now
Batch processing isn't available yet: drop files one by one, or use the Merger to join them.
Converting WMV to WEBM is free: drop your WMV above, hit convert, and download the WEBM. Files delete themselves within an hour.
Most WMV to WEBM conversions are wrapper swaps: the pictures stay pictures, they just trade WMV's box for one built for embedding on the web without licensing worries. If the codec inside your WMV is one WEBM accepts, Flippy keeps quality bit-for-bit identical; if not, it re-encodes once, carefully, at matching quality.
WMV is a time capsule from the Windows XP years: tidy little files with dated manners. It was born in 1999, Microsoft, and its real weak spot is everything Apple, most browsers, and any phone made this decade.
WEBM is video the way browsers like it: open, royalty-free and built to stream. A Matroska-based container restricted to VP8/VP9/AV1 video with Vorbis or Opus audio. That makes it the right destination when what you need is embedding on the web without licensing worries.
Drop your WMV file into the flipper above, or click to browse for it.
Check the output format: WEBM is already selected for you.
Hit Convert, give it a moment, then download your new WEBM.
| WMV | WEBM | |
|---|---|---|
| Born | 1999, Microsoft | 2010, Google, out of its VP8 acquisition |
| Type | video · container | video · container |
| Best for | old Windows archives and PowerPoint decks that still insist on it | embedding on the web without licensing worries |
| Weak spot | everything Apple, most browsers, and any phone made this decade | life outside the browser: editors, TVs and Apple devices get picky |
| Typical size | small for its era, but modern codecs beat it on both size and quality | often smaller than the equivalent MP4: VP9 and AV1 squeeze harder than H.264 |
| Plays on | Windows out of the box; everywhere else wants VLC or a converter. | Every modern browser; hit-and-miss in editing apps and on Apple hardware. |
Usually not: when the video codec is compatible, Flippy swaps the container without re-encoding, so quality is untouched. If a re-encode is needed, it happens once at matching quality.
Similar, unless a re-encode is involved: then it depends on the codec. WEBM typically runs often smaller than the equivalent MP4: VP9 and AV1 squeeze harder than H.264.
Every modern browser; hit-and-miss in editing apps and on Apple hardware. That's the usual reason people leave WMV behind: WEBM simply opens in more of the places that matter.
When it's a pure container swap it's nearly instant, since nothing is re-encoded. Full re-encodes take roughly as long as the video plays, often less.