StringSmith (Free Demo)

StringSmith is a game localization QA tool for game developers. Import your string tables and catch the bugs players screenshot — before they ever ship.

Catch the bugs that break your localization:

- Placeholder mismatches across printf, {0}, {name}, and $var conventions

- Text-overflow prediction with per-language width modeling

- Missing and extra keys

- Mojibake and control characters

- French non-breaking-space rules

- German all-caps and compound overflow risks

- RTL markers

Preview problems before translators deliver: the pseudo-localization generator shows you where text will overflow, and per-language UI mock previews show the breakage.

This free demo includes up to 3 languages and 50 strings, with no export. Upgrade to StringSmith Pro for the full version: unlimited languages and strings, pseudo-localization, UI mock previews, and markdown + CSV exporters.

StringSmith runs entirely offline, locally in your browser — one HTML file, nothing to install.