Developer Tool

Pseudo‑Localisation
Visual Validator

Catch UI truncation, overflow, and internationalisation issues before real translations. Test with Text, HTML, JSON, and ICU messages using intelligent pseudo-localisation.

Developer Focused
Real-time Preview
Multi-format Support
pseudo-localise.vue
ICUPreview
Original
Pseudo-localised
Welcome, !
{count, plural, one {1 item} other {count items}}
Wēlcōmē, ! ¡¿
{count, plural, one {1 ītēm} other {count ītēms}} ¡¿
Smart Parsing
Overflow Detection
Core Features

Professional Validation Tools

Comprehensive pseudo-localisation that helps developers identify and fix internationalisation issues before they reach production.

Smart ICU Parsing

Intelligent parsing of ICU MessageFormat with variable resolution, plural rules, and select statements. Preserves syntax while enabling real-time preview.

Visual Overflow Detection

Real-time detection of text overflow and truncation issues. Adjustable preview widths to simulate different container constraints and identify UI breakpoints.

Multi-format Support

Handle Text, HTML, JSON, and ICU messages seamlessly. File upload/download, HTML rendering, and JSON value-only processing for comprehensive testing.

Configurable Transformation

Customise accent characters, expansion factors, and BIDI wrapping

  • Accented character substitution
  • Adjustable text expansion (1x-3x)
  • RTL BIDI envelope wrapping
  • Placeholder preservation

Developer Experience

Built for developers with modern tooling and workflows

  • Real-time preview updates
  • File import/export support
  • Responsive design
  • Keyboard shortcuts
Use Cases

When to Use Pseudo-Localisation

Identify the perfect scenarios for implementing pseudo-localisation in your development workflow.

Web Applications

Test responsive layouts and identify text overflow issues across different screen sizes

Mobile Apps

Ensure UI elements don't break with longer translated text on small screens

Localisation Files

Validate JSON and ICU message files before sending to translation services

QA Testing

Include pseudo-localised content in automated testing to catch UI issues early

Ready to Validate Your Internationalisation?

Start using pseudo-localisation today to catch UI issues before they reach your users. Join thousands of developers who trust our tools for professional development workflows.