Loper · Subtitles, captions & localization

Open .sbv files on your Mac.

.sbv

YouTube's simple caption format: a start,end time line, then the text.

Loper is a free, minimal editor for macOS that opens YouTube captions (.sbv) instantly and colors every part of the file, so you find the value you need at a glance and can fix it right there. No IDE, no project to load, no gray wall of text.

captions.sbv opened in Loper: YouTube captions (.sbv) with color-coded Subtitles (SRT, VTT, LRC)
Show the file as text
0:00:00.500,0:00:03.200Welcome back to the channel. 0:00:03.400,0:00:07.000Today we grade a night exteriorshot on the ALEXA 35. 0:00:07.200,0:00:09.800Let's start with the balance.

How to open .sbv files

  1. Download Loper (free, Apple silicon, signed and notarized) and move it to Applications.
  2. Double-click your .sbv file, drag it onto the Loper window, or right-click it and choose Open With › Loper.
  3. Want every .sbv file to open in Loper? Choose Loper › Make Loper the Default Editor….