Free Video Tools
Subtitle Line-length Checker
Check subtitle lines against editable character, line-count, and reading-speed targets.
What this tool does
The checker reports each line’s characters plus estimated characters per second for the selected cue duration.
Check subtitle lines against editable character, line-count, and reading-speed targets.
The checker reports each line’s characters plus estimated characters per second for the selected cue duration.
Use the tool
Review subtitle readability
Paste one subtitle cue and set its duration and working targets.
Cue text and timing
Subtitle checks
21.2 chars/sec
- Line 1
- 29 chars
- Line 2
- 23 chars
Within the selected line targets.
How to use it
Three quick steps
- 1Paste one subtitle cue and set its duration and working targets.
- 2Revise long or fast-reading lines before authoring captions.
- 3Verify the result in its real production context. Language, audience, platform, accessibility standard, and caption style affect appropriate limits.
Worked example
Example: Subtitle Line-length Checker
Review a two-line subtitle lasting 2.5 seconds before export.
FAQ
Questions about the subtitle line-length checker
Practical details about using the tool and understanding its result.
Keep working
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