Subtitles and Captions Utilities & Operator Guides
Shift subtitle timing, correct drift, change the frame rate, join files, check captions for common faults, and convert between SRT and VTT in your browser.
Quick Summary / Direct Answer
OpenTools has 7 working subtitles and captions tools. Each one runs in your own browser tab, so your files and inputs never touch a server. There is no account and no paywall.
Category Specifications
Working tools
7
Server upload
None
Runs on
Your browser
Cost
Free, no paywall
All Subtitles and Captions tools
Read the guide, or open the tool straight away.
Subtitle Sync Fixer
Run subtitle sync fixer in your browser tab.
Subtitle Frame Rate Converter
Run subtitle frame rate converter in your browser tab.
Subtitle Joiner
Run subtitle joiner in your browser tab.
Caption Checker
Run caption checker in your browser tab.
Subtitle Delay Fixer
Run subtitle delay fixer in your browser tab.
SRT to VTT
Run srt to vtt in your browser tab.
VTT to SRT
Run vtt to srt in your browser tab.
More in Subtitles and Captions
Workspaces that run several subtitles and captions operations on one page.