How do I convert a SUP file to SRT?

Pick the language of the subtitles, then add your .sup file. The converter reads the text in every subtitle picture and keeps each one's timing. When it finishes, download the SRT.

A .sup file holds Blu-ray subtitles in the PGS format. Each subtitle is stored as a picture of the text, which is why many players, editors and video sites can't use it and need an SRT instead.

Is my SUP file uploaded?

No. The file is opened and its text is recognised in your browser, so it never leaves your device.

How accurate is the conversion?

OCR reads clean Blu-ray subtitles well, but it can still mistake a letter now and then, most often in italics. Lines the reader is unsure about are marked so you can check them, and you can fix any line in the SRT Editor.

Which languages can it read?

29 languages, including English, Spanish, French, German, Portuguese, Arabic, Russian, Chinese, Japanese and Korean. Choose the language before you add the file.

Can I convert PGS subtitles that are inside an MKV?

Yes. Open the MKV in Extract Subtitles and choose Convert to SRT on its PGS track. The subtitles come straight here to be read, without saving anything first.

SUP to SRT Converter

Turn Blu-ray subtitles (.sup, also called PGS) into an SRT file. The text is read from each subtitle picture with OCR.

Everything happens in your browser. Your file is never uploaded.

Subtitle language

SUP file

Drag and drop a .sup file here, or click to choose

Blu-ray PGS subtitles.

Subtitles inside an MKV? Open the video in Extract Subtitles and choose Convert to SRT on its PGS track.

PGS Subtitles

Why SUP subtitles need converting

Blu-ray discs store subtitles as pictures of the text, in a format called PGS. Saved on their own they become .sup files. A Blu-ray player shows them fine, but most editors, video sites and many TVs and media servers only take text subtitles such as SRT.

This converter reads the words in each picture with optical character recognition (OCR) and writes them into an SRT file, with every subtitle at its original time. A line that appears more than once is read once, so long films convert faster.

How It Works

How to convert SUP to SRT

Step 1

Pick the language

Choose the language the subtitles are in. When the file name says it, as in Movie.fre.sup, it is picked for you.

Step 2

Add the SUP file

The converter finds every subtitle picture and reads its text, several at a time.

Step 3

Check and download

Look over any lines marked to check, then download the SRT with the original timing.

FAQ

SUP to SRT questions

No Subtitle File at All?

Caption X makes subtitles from the audio. Try it free.

Generate accurate, timed captions from your video in 100+ languages, in the browser or inside Adobe Premiere Pro, then export the format you need.

No subtitles to convert?

Get a subtitle file from what is said in the video.

100+ languages

Caption and translate in the languages your audience speaks.

Download for Windows Download for Mac

View all download options

Related Tools

More free subtitle tools

Extract SubtitlesGet the subtitle tracks out of an MKV, MP4 or MOV video.Subtitle ConverterConvert subtitle files between SRT, VTT, ASS, SBV, TXT and JSON.SRT EditorFix text and timing line by line, with a reading speed check.SRT Timing AdjusterShift every subtitle earlier or later when the sync is off.Subtitle TranslatorTranslate an SRT file into another language and keep the timing.Audio to SRTMake an SRT file from the speech in an audio or video file.VobSub to SRTTurn DVD subtitles (.idx and .sub) into an SRT file with OCR.