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H.264 to FLC - Online Video Converter
Convert H.264 to FLC online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert H.264 to FLC
Drop H.264 video here or click to select
H.264, MP4
FLC (H.264 / AAC)
About H.264 to FLC
Convert H.264 to FLC. H.264 is the AVC codec behind most MP4 and broadcast video. FLC extends the Animator flipbook with larger frames and deltas. Frame deltas can glitch on corrupt frames; verify playback..
Why convert H.264 to FLC?
- Larger files than lossy shares with FLC lossless quality.
- Keep animation and transparency where supported.
- Private, no upload - runs in your browser.
H.264 vs FLC
| Animation | Yes | Yes |
|---|---|---|
| Transparency | No | No |
| Compression | lossy | lossless |
| Typical use | H.264 is the AVC codec behind most MP4 and broadcast video. | FLC extends the Animator flipbook with larger frames and deltas. |
When not to convert H.264 to FLC
- Skip FLC for the smallest share: lossless output stays large, so prefer a lossy target when sending H.264 files.
- Keep a master copy: repeated exports stack small losses, so archive H.264 before batch FLC shares.
Limits
Starting point: H.264 - H.264 is the AVC codec behind most MP4 and broadcast video. Annex-B headers usually import cleanly into MP4. Frame deltas can glitch on corrupt frames; verify playback. Encode FLC (H.264 / AAC) from H.264 at a bitrate near the source, and confirm the audio track before converting.
How conversion works
Conversion runs entirely in your browser with FFmpeg WASM. Files never leave your device.
Related conversions
FAQ
How do I convert H.264 to FLC?
Drop your H.264 file onto this page, choose quality and codec settings, then click Convert. The result downloads as FLC instantly. All processing runs in your browser.
What codec is used for FLC?
The default codec for FLC is H.264 / AAC. You can change the video and audio codec in Advanced mode.
How do you store my files?
We do not store any processed videos. All conversion happens entirely in your browser using FFmpeg WASM.