Text Conversion Tool
Case conversion, CN Simplified/Traditional conversion, line processing, whitespace handling, full/half width, and more.
Input Text
Case
Simplified/Traditional
Line Operations
Whitespace
Full/Half Width
Features & Use Cases
Text Conversion Tool is a powerful data cleaning and text processing tool offering case conversion, traditional/simplified Chinese conversion, line operations (sort, deduplicate), whitespace handling, and full/half-width character conversion.
Data Cleaning: Survey Response Processing
Scenario: 3000 survey responses with duplicates, mixed formatting, extra spaces.
Solution: Trim each line → Deduplicate → Convert to half-width → Sort ascending → Remove empty lines
Result: Reduced 3000 to 1856 unique responses (38% dedup rate), saved 5 days of manual work.
Email List Cleanup
Scenario: 5000 email addresses from multiple sources with mixed case and duplicates.
Solution: To lowercase → Trim → Deduplicate → Sort
Result: Clean list of 4125 valid addresses, prevented duplicate sends.
Content Localization
Scenario: Convert 100K character document from Simplified to Traditional Chinese.
Solution: One-click conversion with OpenCC library
Result: 5-minute conversion vs 3-5 days manual translation, 99% efficiency gain.
FAQ
Does Chinese conversion require internet?
First use loads OpenCC library (~200KB) from CDN. After caching, works offline. Other functions (case, sort, etc.) never need internet.
Can I chain multiple conversions?
Yes! Results update automatically. Chain operations like: Deduplicate → Sort → Trim → To lowercase for complete data cleaning.
Recommended data cleaning workflow?
Remove empty lines → Trim lines → To lowercase/half-width → Deduplicate → Sort. This order maximizes cleaning effectiveness.
🔒 Technology & Privacy
Technology
- • Native JavaScript, no dependencies
- • OpenCC for Chinese conversion
- • Set data structure for efficient deduplication
- • Optimized regex matching
Privacy
- • 100% local processing
- • Zero server requests
- • Safe for sensitive data
- • Open source on GitHub
Performance: Case conversion <50ms, dedup 10K lines <200ms, Chinese conversion 100K chars <500ms.