Drag and drop your video here
or click to browse
Supported: MP4, WebM, MOV, MKV
Max file size: 2GB
Supported: SRT, VTT
Older subtitle files may need a non-UTF-8 encoding to read correctly.
Subtitles are burned into the video frames so any player shows them. Save a copy of your SRT before processing if you want to keep the text editable later.
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Subtitles
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This tool overlays subtitle text on a video and re-encodes it inside your browser. Source media never leaves your device when uploaded from disk; the WebCodecs API does the heavy lifting locally.
Many social platforms strip soft caption tracks, mute audio by default, or simply ignore SRT sidecars. Rendering captions directly onto the picture guarantees viewers see them, helps non-native speakers, supports accessibility, and improves silent feed retention.
Use the manual editor when you have no transcript file. Type a line, set its start time, and click Add Subtitle. Switch to Paste Text to drop a script and let the tool spread the lines evenly across the video duration. Export the result as an SRT for reuse and version control.