Convert FLV to WEBM
Free, fast and secure — convert FLV to WEBM right in your browser.
FLV
WEBM
Convert FLV to WEBM for wider compatibility
Converting FLV to WEBM gives you a more widely supported file that opens cleanly across more devices, apps and platforms — handy when FLV will not play nicely everywhere.
How to convert FLV to WEBM
- 1 Drop your FLV file into the converter above.
- 2 It is converted to WEBM automatically — no settings to fiddle with.
- 3 Download your new WEBM file instantly.
FLV vs WEBM
| Feature | FLV | WEBM |
|---|---|---|
| Compression | Lossy | Lossy |
| Transparency | No | Yes |
| Animation | Yes | Yes |
| MIME type | video/x-flv | video/webm |
| Best for | Rescuing old Flash video by converting it to MP4 or WebM. | Embedding fast-loading video on websites and web apps. |
About the formats
FLV
Flash video
FLV is the old Flash video container. Once dominant for web streaming, it is now obsolete and almost always needs converting to a modern format like MP4.
Strengths
- Small files for its era
- Plays in legacy Flash players
- Common in old web archives
Limitations
- Obsolete — Flash is discontinued
- No support on modern devices
- Lower quality than modern codecs
Best for: Rescuing old Flash video by converting it to MP4 or WebM.
WEBM
WebM video
WebM is an open, royalty-free format built for the web. It streams efficiently in modern browsers and supports transparency, making it a favourite for HTML5 video.
Strengths
- Optimised for web streaming
- Open and royalty-free
- Supports alpha transparency
Limitations
- Limited support outside browsers
- Not ideal for editing
- Less common on mobile apps
Best for: Embedding fast-loading video on websites and web apps.
Frequently asked questions
Upload your FLV file above and it is converted to WEBM automatically. When it is ready, download your new WebM video — the whole thing takes just a few seconds in your browser.
Converting FLV to WEBM gives you a more widely supported file that opens cleanly across more devices, apps and platforms — handy when FLV will not play nicely everywhere.
Converting between compressed formats can introduce minor changes, but our converter keeps your WEBM looking as close to the original as possible.
Yes. The converter is free to use, with no watermark and no sign-up required.
Your files are processed securely and are never shared with anyone.