Clip Caption Kit

Free Online Subtitle Maker

Create a standards-based SRT file by entering caption timings and text. Add as many cues as needed, validate them and download without uploading media.

Free and no sign-in required. Your subtitle file stays in this browser and is never sent to our servers.

How to use this subtitle tool

  1. Enter the start time, end time and text for the first caption.
  2. Add and edit more cues in the order they should appear.
  3. Resolve any validation message, preview the SRT and download it.

What makes a valid SRT cue?

Each cue has a number, a start and end timestamp in HH:MM:SS,mmm form, and one or more lines of text. The end must be later than the start; numbering is generated automatically.

Subtitle maker FAQ

Related subtitle tools

Need subtitle files for many video clips?

Use one master SRT and a CSV of clip ranges to create every clip-relative SRT and TXT file in one organized ZIP.

Batch split my SRT