Batch Convert
Convert multiple subtitle files between formats and apply various transformations.
- Menu: Tools → Batch convert…

How to Use
- Open Tools → Batch convert…
- Add subtitle files (drag and drop or use the Add button)
- Select the output format
- Optionally add conversion functions (fixes, adjustments)
- Choose an output folder
- Click Convert
Available Functions
You can chain multiple conversion functions:
- Fix common errors
- Remove text for hearing impaired
- Multiple replace
- Change casing
- Change formatting (add/remove)
- Offset time codes
- Adjust duration
- Change speed/frame rate
- Bridge gaps
- Apply minimum gap
- Merge lines with same text
- Merge lines with same time codes
- Split/break long lines
- Auto translate
- Delete lines
OCR in Batch Convert
Batch Convert can OCR image-based subtitle files while converting them to text-based formats.
Supported OCR engines in Batch Convert:
- nOcr
- BinaryOcr
- Tesseract
- Ollama
- PaddleOCR (Windows and Linux only)
Subtitle Edit 5 can auto-detect language and pixels-are-space settings for nOcr/BinaryOcr in many batch workflows. This reduces the amount of manual setup needed when converting many image-based subtitle files with similar fonts.
Speech to Text in Batch Mode
Speech-to-text batch mode can transcribe multiple media files and save the results next to the source files. See Speech to Text for engine setup and model details.
Settings
- Output format — Choose from 300+ subtitle formats
- Output folder — Where converted files are saved
- Overwrite existing — Whether to overwrite files
- Encoding — Text encoding for output files
For headless batch conversion, see Command Line (seconv).