Subtitle Tools

Convert, clean, merge and adjust subtitle files such as SRT, VTT, ASS, SSA and SBV. Open a tool and start immediately—no account needed for core tools.

Conversion workspace

Quick Subtitle Converter

Convert between SRT and VTT without leaving this page.

  • Private in your browser
  • Up to 100 files
  • No account
Choose a conversionChanging formats opens the matching dedicated tool.
Processed locally

Search here, or browse the complete directory below.

33 toolsEvery distinct tool in this category is listed once below.

BROWSE BY FORMAT

Format converters

Open a format page and choose conversions from or to that format.

7

ALL CONVERSIONS

Specific conversion tools

Choose the exact source and target formats directly.

22

MORE TASKS

More Subtitle Tools

Browse every other available task in this category.

4

Subtitle conversion for creators and editors

zer.ai supports focused subtitle tasks for common caption formats, including TXT to SRT, SRT to VTT, VTT to SRT, SRT to ASS and conversions involving SSA and SBV. Use TXT to SRT when a transcript needs an initial cue timeline, then use the subtitle editor, merger or timestamp tools to review and correct the result.

Check timing and styling after conversion

Subtitle formats do not support the same styling, positioning or timing features. Preview the first, middle and final cues after processing, and check that special characters and line breaks remain readable on the target video platform.

Browser-based caption processing

Supported subtitle tools process text locally in your browser and do not require an account. Keep a copy of the source caption file so you can restore timing or styling that the destination format cannot represent.