Open SUB files in your browser
The subtitles ripped from DVDs, a SUB of pictures with an IDX that times them, and MicroDVD's text lines timed by frame. Drop them with their video, or open them alone. 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 SUB
DVDs keep their subtitles as pictures. VobSub, a ripping tool of 2001, saves them as a .sub with an .idx beside it, which holds the palette, the size of the video, the languages and each line's time. MicroDVD, an older player, used .sub too, for plain text lines.
A VobSub SUB holds the disc's own subpicture packets: each line a picture of four colors picked from the IDX's palette of 16, with their transparency, packed with run-length coding. A MicroDVD SUB is text, each line after its first and last frame in braces, like {250}{300}.
Dropped with a video, a SUB and its IDX named like it are drawn on the picture, with the Subtitles button to switch or hide them. Alone, VobSub opens as a page for each line, named by when it shows, in gray tones until its IDX comes with it, and MicroDVD as a table of every line with its time.
VobSub and MicroDVD subtitles
.sub • .idx
Format
- MIME type
- application/octet-stream
- Made by
- VobSub, and MicroDVD before it
- Released
- 2001
Inside the file
- Holds
- Lines as pictures, or text
- Beside it
- An IDX with the palette and times
- Colors
- 4 a line, of 16
- From
- DVDs
Opens in every browser
Filepeek shows SUB subtitles on videos, as pictures and as a table in Chrome, Edge, Firefox and Safari. On their own, browsers only download them.
- YouChromeOpens through Filepeek
- YouEdgeOpens through Filepeek
- YouFirefoxOpens through Filepeek
- YouSafariOpens through Filepeek
Apps that open SUB
- WindowsMPC-HC and VLC, with the video • Subtitle Edit
- MacVLC and IINA, with the video
- iPhone and iPadVLC and Infuse, with the video
- AndroidVLC and MX Player, with the video
Questions
Why does my SUB need its IDX?
A VobSub's pictures name their colors by number, and the IDX holds the palette they come from and when each line shows. Drop both together. Without it, the lines show in gray tones.
How do I show a SUB on its video?
Drop the video, the SUB and its IDX together, or the folder that holds them. Subtitles named like the video show on it at once, and the Subtitles button picks another or turns them off.
Can I turn a SUB into an SRT?
A MicroDVD SUB is text, and Export saves its lines as CSV, Excel or JSON. A VobSub's lines are pictures, so they take OCR, which Subtitle Edit does.
Why are my MicroDVD subtitles out of step?
A MicroDVD line is timed in frames, not seconds, so it only fits a video of the frame rate it was made for. Its first line often gives that rate, like {1}{1}25, which Filepeek follows, or else it counts film's 23.976 frames a second.