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Burn SRT or VTT subtitles permanently into your video with custom styling.
Subtitle Burner permanently embeds SRT or VTT subtitle files into your video, creating a new video file with the text rendered directly onto the frames. Unlike soft subtitles that can be toggled on and off, burned-in subtitles are part of the video itself — they always display, regardless of the player or platform used to watch the video. Subtitles are essential for accessibility, multilingual audiences, and situations where the audio cannot be heard. However, not all platforms support soft subtitles. YouTube processes SRT files correctly, but many social media platforms, video players, and embedded viewers ignore external subtitle tracks. Burning the subtitles directly into the video guarantees they appear everywhere. The tool supports custom styling options including font size, color, outline, background opacity, and position on the screen. All rendering is done using FFmpeg compiled to WebAssembly, running entirely in your browser with no server uploads.
Upload a video file and a subtitle file in SRT or VTT format. The tool parses the subtitle file and overlays each subtitle entry onto the corresponding video frames using configurable styling. You can adjust the font size, text color, outline color, background opacity, and vertical position (top, middle, bottom) of the subtitles. A live preview shows a sample frame with your styling applied so you can see how the subtitles will look before processing the entire video. Once you confirm the styling, the tool renders every subtitle onto the video, re-encodes the result, and offers the new video with permanently embedded subtitles for download.
Accessibility requirements increasingly mandate subtitles on published video content. Viewers in noisy environments, non-native speakers, and people with hearing impairments all rely on subtitles. However, soft subtitles fail on many platforms: Instagram Stories ignore them, embedded video players strip them, and downloaded videos lose them. Burning subtitles into the video eliminates all these failure modes with a single rendering pass.
adding permanent subtitles to videos before uploading to platforms that do not support soft subtitles
creating accessible lecture videos with burned-in captions for hearing-impaired students
embedding subtitles into videos for platforms like Instagram and TikTok that lack native subtitle support
burning translated subtitle tracks into videos for international distribution
A content creator has a 60-second video with an SRT subtitle file for accessibility. Burning the subtitles with white text, a semi-transparent black background, and 5% font size produces a polished video that displays captions correctly on Instagram Reels and Stories.
A non-profit organization produces a documentary and creates SRT subtitle files in English, French, and Swahili. Using Subtitle Burner, they create three separate video files — one with each language's subtitles burned in — for distribution to different regions.
The Zilita Team builds privacy-first browser tools that help teachers, students, developers, businesses, and creators work more efficiently without sacrificing data privacy.