Burned-in subtitles (also known as hardcoded subtitles) are those permanently embedded into the video frames. Unlike SRT subtitle files, they cannot be toggled off or edited separately. But what if you need to extract them to edit, translate, or convert them to a different format?
What are burned-in subtitles?
Burned-in subtitles are text that has been processed directly onto the video frames during production. The result is a video where the text is an integral part of each frame, as if it had been drawn with editing software.
This is common in:
- Movies and TV series broadcast on television
- Streaming platform content with mandatory subtitles
- Educational videos with overlay text
- Screen recordings with annotations
Why extract burned-in subtitles?
There are several valid reasons for needing to extract burned-in subtitles:
- Translation: You want to translate the content into another language but only have the video with burned-in subtitles
- Correction: The subtitles have spelling or translation errors that need to be fixed
- Accessibility: You need an SRT file for screen readers or hearing impaired users
- Editing: You want to modify the text without having to redo the entire video
Method 1: Automatic extraction with OCR
The most efficient way to extract burned-in subtitles is by using OCR (Optical Character Recognition) technology. This technology analyzes video frames, identifies text, and converts it into an editable file.
Steps:
- Open the Video OCR tool from SRT-Tools in your browser
- Upload the video containing the burned-in subtitles
- The tool will automatically analyze frames and detect text
- Review and correct the extracted text
- Export the result as an SRT file
This method is fast, requires no software installation, and works directly in your browser, processing everything locally to protect your privacy.
Method 2: Manual frame-by-frame extraction
If the burned-in subtitles are complex (custom fonts, visual effects, dynamic backgrounds), automatic OCR might not work perfectly. In that case, you can use a more manual approach:
- Play the video in individual frames
- Capture each frame containing subtitles
- Use an OCR tool to extract text from each image
- Compile the extracted texts into an SRT file with correct timestamps
This method is more laborious but ensures greater accuracy in difficult cases.
Tips for better results
- Video quality: Use videos with good resolution and contrast for better OCR performance
- Simple fonts: Subtitles with simple fonts and high contrast are easier to extract
- Manual verification: Always review extracted text, especially proper nouns and technical terms
- Timestamp adjustment: After extraction, adjust start and end times to match the video
Recommended tools
For extracting burned-in subtitles we recommend:
- SRT-Tools Video OCR — Free online tool that extracts text from videos directly in the browser
- SRT-Tools Convert — To convert extracted text to different subtitle formats
- SRT-Tools Sync — To sync extracted subtitles with the original video
Conclusion
Extracting burned-in subtitles from a video may seem like a complicated task, but with the right OCR tools it is completely possible. The key is choosing the right tool and always verifying the result to ensure maximum accuracy.
With SRT-Tools Video OCR you can perform this task for free and without installing any software, all from your browser.