Subtitle draft builder
TXT to SRT Converter
Convert one caption line at a time into a simple timed SRT draft. Choose a cue duration to create sequential timestamps, then fine-tune the timing in your video editor before publishing.
Start with 3 free minutes
Don't Have a Subtitle File Yet?
Upload your video to CapsAI and generate an editable subtitle file before using this converter.
Tool workspace
No account required · processed locally
A starting duration only; adjust to the final audio later.
Three steps
How this tool works
- 1
Place each intended subtitle on a new line.
- 2
Choose a starting duration for every cue.
- 3
Generate and download an SRT draft.
Useful for
Common workflows
- Pre-written narration
- Rough subtitle timing
- Caption templates for editors
What it checks
Focused, transparent output
- Sequential cue numbering
- Non-overlapping timestamps
- Editable SRT output
Questions
Frequently asked questions
Does TXT to SRT detect speech timing?
No. It assigns the duration you choose to each line; align the draft to audio in an editor.
What should each text line contain?
Use one short, readable subtitle per line for the cleanest draft.
Can I change the generated SRT later?
Yes. SRT is plain text and can be edited in subtitle software or a text editor.