ShotLattice
Prepare your app screenshots in multiple languages.
Keep your app screenshots, copy and layouts together. Preview every language and format, then export a consistent image set directly on your Mac.
CaptionWeave · One-time purchase
CaptionWeave gives creators and editors a local review pass for existing subtitle files. Inspect timing and readability, make selected edits, and export deliberately without generating new captions.
$15 USD · one-time purchase
Prices in USD. Final price and any tax are shown on Gumroad.
Tested on Mac in Chrome and Safari
Works offline. No account in the tool.

Who is it for?
For creators and editors with existing SRT or WebVTT files who want to review and adjust them locally.
Open START.html and import an existing SRT or WebVTT file.
Review the findings and make selected cue-level changes.
Resolve negative or reversed timings that block export, then export in the format you choose.
Yes. Open START.html from the downloaded folder. You need no account, server, or Node.
No. It reviews SRT and WebVTT files you already have.
No. The tool prevents a conversion when it would lose information it is preserving.
ShotLattice
Keep your app screenshots, copy and layouts together. Preview every language and format, then export a consistent image set directly on your Mac.
TenderCairn
TenderCairn is a local working tool for freelancers and designers who want to see how scope, revisions, and extra work affect a fixed-price proposal before sending it.
BriefLattice
BriefLattice lets you enter local images and variant copy once, adjust each output format, and review the whole set before export. It suits product messages, event details, or quotes that need to stay consistent from square to story.