Open SUP files in your browser
The picture subtitles of Blu-ray discs, which rippers save as .sup. Drop one with its video to watch them on it, or open it alone to see every line. Nothing leaves your device.
Or drop it anywhere on this page
What you'll see
Your subtitles are drawn on the video they're dropped with, or open alone as a picture for each line, named by when it shows.
- Drawn on the video they're dropped with
- Alone, a page for each line • Forced lines marked
- When each line shows and hides • The video it was made for
- Export • Save a line as PNG or JPEG
About SUP
Blu-ray discs keep their subtitles as pictures, not text, in a Presentation Graphic Stream, PGS for short, which came with the format in 2006. MakeMKV, tsMuxeR, BDSup2Sub and Subtitle Edit save that stream on its own as a .sup file.
A SUP is a run of segments, each marked PG with its time: the size of the video, a palette of up to 256 colors with their transparency, the pictures packed with run-length coding, and where each one sits on the screen and when it goes.
Dropped with a video, a SUP named like it is drawn on the picture, with the Subtitles button to switch or hide it. Alone, it opens as a page for each line, named by when it shows, with forced lines marked, the ones a film shows even with subtitles off.
Blu-ray PGS subtitles
.sup
Format
- MIME type
- application/octet-stream
- Made by
- The Blu-ray Disc Association
- Released
- 2006
Inside the file
- Holds
- Lines as pictures
- Colors
- Up to 256, with transparency
- Packing
- Run-length coding
- From
- Blu-ray discs
Opens in every browser
Filepeek shows SUP subtitles on videos and as pictures in Chrome, Edge, Firefox and Safari. On their own, browsers only download them, and their players don't take them.
- YouChromeOpens through Filepeek
- YouEdgeOpens through Filepeek
- YouFirefoxOpens through Filepeek
- YouSafariOpens through Filepeek
Apps that open SUP
- WindowsMPC-HC and mpv, with the video • Subtitle Edit
- MacIINA and mpv, with the video
- iPhone and iPadInfuse, inside an MKV with the video
- Androidmpv for Android, with the video
Questions
How do I watch a SUP with its video?
Drop the video and the SUP together, or the folder that holds them. A SUP named like the video is drawn on it at once, and the Subtitles button picks another or turns them off.
Can I turn a SUP into an SRT?
Not here: a SUP's lines are pictures, so making text of them takes OCR. Subtitle Edit reads SUP files and turns them into SRT with its OCR.
What are forced subtitles?
Lines a film shows even with subtitles off, like a sign or a few words in another language. Each forced line says Forced beside its time.
Why does my TV or phone show no subtitles?
Many players can only draw text subtitles like SRT, not pictures. MPC-HC, mpv and IINA draw SUP files, and Plex often burns them into the picture instead.