Convert WEBM to FLV
Free, fast and secure — convert WEBM to FLV right in your browser.
WEBM
FLV
Convert WEBM to FLV with a solid background
Converting WEBM to FLV flattens transparency onto a solid background, producing a Flash video that displays consistently wherever transparency is not supported.
How to convert WEBM to FLV
- 1 Drop your WEBM file into the converter above.
- 2 It is converted to FLV automatically — no settings to fiddle with.
- 3 Download your new FLV file instantly.
WEBM vs FLV
| Feature | WEBM | FLV |
|---|---|---|
| Compression | Lossy | Lossy |
| Transparency | Yes | No |
| Animation | Yes | Yes |
| MIME type | video/webm | video/x-flv |
| Best for | Embedding fast-loading video on websites and web apps. | Rescuing old Flash video by converting it to MP4 or WebM. |
About the formats
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.
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.
Frequently asked questions
Upload your WEBM file above and it is converted to FLV automatically. When it is ready, download your new Flash video — the whole thing takes just a few seconds in your browser.
Converting WEBM to FLV flattens transparency onto a solid background, producing a Flash video that displays consistently wherever transparency is not supported.
Converting between compressed formats can introduce minor changes, but our converter keeps your FLV 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.