Convert WEBM to FLV
Convert WEBM files to FLV locally, completely free and with maximum privacy.
Drag and drop your files here
or click to browse local files (large files supported, limited only by browser RAM)
Upload FilesPlatform Statistics
How to convert WEBM to FLV
- Drop your .webm files above, or click Upload Files. You can add many files at once.
- FLV is already selected as the output. Open the settings (gear icon) to fine-tune the result.
- Click Convert All. FFmpeg runs inside your browser through WebAssembly; nothing is uploaded.
- Download your .flv files as soon as each one finishes.
What to know about WEBM to FLV conversion
- The video is re-encoded to H.264 video and AAC audio so it plays wherever FLV is supported, and odd frame sizes are adjusted automatically.
- You can change the resolution, frame rate, playback speed and quality (CRF) before converting.
WEBM vs FLV
| Feature | WEBM (WebM Video Container) | FLV (Flash Video) |
|---|---|---|
| Codecs used by PureConverter | VP8 video and Opus audio | H.264 video and AAC audio |
| Best for | web video with open, royalty-free codecs | legacy Flash-based players and old streaming setups |
| Opens in | all modern browsers and VLC | VLC, mpv and most media players |
WEBM (WebM Video Container): An open, royalty-free media file format designed for sharing video content directly on HTML5 web pages.
FLV (Flash Video): A legacy streaming video container popularised by Adobe Flash Player.
Conversion options
- Resolution: original, 1080p, 720p, 480p or 360p
- Frame rate and playback speed (0.5× to 2×)
- Quality presets or a custom CRF value, and lossless mode
- Audio bitrate, sample rate and channels
Frequently asked questions
Is it safe to convert WEBM to FLV here?
Yes. Your files are processed entirely on your own device by WebAssembly code running in the browser. They are never uploaded, so nobody else can see them, and the converter keeps working even if your connection drops after the page loads.
Is there a file size limit?
There is no server-side limit. The only limit is the memory available to your browser, typically 1.5–4 GB on desktop computers.
Can I convert several WEBM files at once?
Yes. Add as many files as you like; they are converted in parallel according to your device's CPU cores, and you can apply the same settings to all of them.
Related conversions
Need the opposite? Convert FLV to WEBM.
Convert WEBM to other formats
- WEBM to MP4
- WEBM to MP3
- WEBM to WEBP
- WEBM to GIF
- WEBM to WAV
- WEBM to MOV
- WEBM to M4A
- WEBM to FLAC
- WEBM to MKV
- WEBM to AAC
- WEBM to OGG
- WEBM to OPUS
Convert other formats to FLV
- MP4 to FLV
- MOV to FLV
- MKV to FLV
- AVI to FLV
- WMV to FLV
- M4V to FLV
- MPEG to FLV
- TS to FLV
- 3GP to FLV
- OGV to FLV
See every WEBM converter and FLV converter, or browse the full converter directory.