SUP to SRT converter

Convert SUP to SRT: Blu-ray PGS subtitles, stored as pictures, come out as editable SRT text.

Runs entirely in your browser — nothing is uploaded

Read entirely in your browser — nothing is uploaded. Free, unlimited, no watermark.

# Start → end Text

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Blu-ray subtitles aren't text. Each line is a small picture, which is why most players and every subtitle editor refuse a .sup file. Drop it here and you get the lines back as editable SRT text, with nothing uploaded. The result isn't always perfect, so lines that may be wrong are marked for you to check before you download.

Questions

How do I convert SUP to SRT?

Drop the .sup above. The first conversion takes a little longer to start; after that, it starts straight away. Check the marked lines, then download the .srt.

What is a PGS or SUP file?

The subtitle format Blu-ray discs use: pictures of text, each with a time. Rips keep it as a .sup file or as a track inside an MKV.

What's the difference between PGS and SRT?

PGS subtitles are pictures of text, and SRT subtitles are text. A picture keeps the exact look from the disc, but you can't edit or search it, and many players and TVs won't show it. SRT plays almost everywhere and opens in any text editor.

How accurate is it?

It depends on the subtitles. Plain white text reads best, while italics, stylised fonts and coloured text cause more errors. Every uncertain line is marked for you.

Which languages does it read?

English, for now.

My subtitles are inside an MKV. Can I still convert them?

Yes. Drop the MKV on Extract subtitles and pick the image track; it opens here.

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