i18n Diff

About

i18n Diff: Real-time UI Layout Guard
Ensure your UI stays perfect in every language.

When developing multilingual websites, text expansion in different languages often breaks carefully designed layouts. i18n Diff allows developers and designers to instantly test and visualize how their UI responds to various language data without changing a single line of code.

Key Features
- Instant Text Simulation: Drag and drop your base and target JSON files to swap webpage text in real-time.
- Visual Layout Guard: Automatically detects text overflow and highlights problematic areas with a red dashed border.
- Zero Code Changes: Test your i18n implementation directly on the rendered DOM, regardless of your frontend framework (React, Svelte, Vue, etc.).
- Smart State Persistence: Your uploaded files and testing notes are saved locally, so you can pick up right where you left off even after closing the popup.

Why You Need This
- Prevent UI Regressions: Catch "Layout Breaks" before they reach production.
- Efficiency for QA & Devs: No more manual string replacement or repeated builds for simple translation testing.
- Seamless Collaboration: Easily share and verify translation impacts between developers, designers, and translators.