Burn-in or embed subtitles into your video
Drag & drop video file here
Supports MP4, MKV, AVI, MOV, WebM and more
Drag & drop your FLV file and subtitle file
Adjust font, size, color, and position of your subtitles
Save your FLV video with burned-in subtitles
Flash Video
FLV was the dominant web video format during the Flash era. While Flash is now deprecated, FLV files still exist in many archives and legacy systems.
Common reasons to add subtitles to FLV videos
Save as FLV for maximum compatibility across all devices and platforms.
FLV is widely supported across all major web platforms and social media.
Use FLV as an intermediate format for video editing workflows.
FLV plays natively on virtually every smartphone and tablet.
Your videos and subtitle files never leave your device.
Hardware-accelerated subtitle burn-in for FLV videos.
Add SRT and VTT subtitles to MP4, MOV, AVI, MKV, WebM and more.