What is the difference between MicroDVD .sub and VobSub .sub?
MicroDVD .sub is a text format using frame numbers. VobSub .sub is a binary image format paired with an .idx file. This tool converts MicroDVD text files. VobSub requires OCR extraction, which is a separate tool.
Why are my converted SUB timings wrong?
MicroDVD uses frame numbers, so conversion depends on the video frame rate. The tool auto-detects FPS hints and defaults to 23.976. If your video uses a different frame rate, the timings will drift; adjust the FPS or use a subtitle shifter.
Does this tool convert VobSub .sub + .idx files?
No. VobSub is a binary image format that requires OCR. Use a dedicated SUB/IDX converter for those. This tool handles text-based MicroDVD .sub files.
Can I convert a batch of SUB files?
Yes. Select multiple .sub files or upload a ZIP archive and the tool converts them all to SRT.
Are my SUB files uploaded anywhere?
No. Everything runs locally in your browser.
What is the easiest way to convert SUB subtitles to SRT?
Open this tool, select the relevant file, choose the available SUB to SRT converter options, and download the generated result. The page keeps the workflow in the browser rather than requiring an installed editor.
Which files work with this SUB to SRT converter?
Use the formats listed in the tool description and picker. .sub input and SRT output Formats outside that list may be rejected or need conversion first.
Are subtitle files uploaded during processing?
The tool is built for browser-side processing. Your file is selected by the browser and the result is downloaded locally rather than being described as a server upload.
Will the video file be changed?
No. Subtitle tools create or modify subtitle output only. The video itself is not edited, re-encoded, or downloaded by this workflow.
How do I check whether the output worked?
Open the downloaded file with a text editor or your video player. Confirm that cues are present, timestamps make sense, and the filename matches the video when automatic loading is useful.