Professional Text Processing Tools

Multifunctional text processing tools to meet all your text needs, simple to use and reliable.

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Popular Guides

Copywriting: Word Count & Formatting

Use counter, line ops and case conversion to polish drafts.

Data Cleaning Workflow

Deduplicate, sort and normalize whitespace in one go.

Developer Workflow: Format & Diff

Formatter + Diff combo to quickly spot changes.

More Tools

Character Counter

Real-time character and word counting with categorization and reading time estimation.

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Text Conversion

Case, CN simplified/traditional, line operations, whitespace, full/half width conversion tool.

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Formatting Tools

Format and minify JSON, XML, HTML, CSS - developer workflow optimization tool.

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Text Comparison

Intelligent text diff with highlighted changes, perfect for code reviews and version control.

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Text Encoder/Decoder

Base64, URL, Unicode, HTML entity encoding, JWT parser, base conversion all-in-one.

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Regex Tester

Real-time regex testing, highlighted matches, built-in pattern library and replace function.

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Why Choose Our Text Processing Tools?

Privacy & Security

100% client-side processing, no server upload, protecting your privacy

Fast & Efficient

Real-time processing with instant feedback for improved efficiency

Feature Rich

Character counting, text conversion, formatting, comparison and more

Multi-language Support

Supports both English and Chinese interfaces for different user needs

Why Choose Our Tools

6+
Useful Tools
0sec
Launch Time
Local
Data Processing
Free
Completely Free

Frequently Asked Questions

Are these tools free to use?

Yes, all our text processing tools are completely free to use, with no registration or payment required. We are committed to providing high-quality free services to users.

Is my data safe?

Yes, very safe. Our tools use pure client-side technology, all text processing is done locally in your browser, data is not uploaded to our servers, ensuring your privacy and security.

Which browsers are supported?

Our tools support all modern browsers including Chrome, Firefox, Safari, Edge, etc. We recommend using the latest version of your browser for the best experience.

Are mobile devices supported?

Yes, our website uses responsive design, perfectly adapted to mobile phones, tablets and other mobile devices, you can use our tools anytime, anywhere.

How to contact customer support?

If you encounter any problems or have suggestions during use, you can send us an email through our contact page, and we will reply as soon as possible.

Recommended Tool Combinations

Content Creation Suite

Perfect for copywriting, content editing and similar scenarios

Data Processing Suite

Perfect for data analysis, batch processing and similar scenarios

Developer Suite

Perfect for code development, technical documentation and similar scenarios

Why Choose Our Tools?

Core advantages compared to other text processing tools

Feature CharTools
(Us)		 Online Tool A Online Tool B
Data Privacy 100% Local Server Processing Partial Upload
Tool Count 6 Core Tools 3-4 2-3
Response Speed <100ms 200-500ms 300-800ms
Registration ✗ Not Required Sometimes Required
Open Source ✓ GitHub ✗ Closed ✗ Closed
Offline Support ✓ Yes ✗ Online Only ✗ Online Only

* Comparison data based on publicly testable features as of October 2025. Performance tested in Chrome browser.

What's New

Continuous improvements and regular updates

October 2025

Major Tool Page Content Enhancement

  • • Added 2500+ words of detailed documentation per tool page
  • • Included 5 real-world use cases, 10 FAQs, 6 pro tips per tool
  • • Enhanced with technical details, privacy info, and performance metrics
August 2025

Performance Optimization & Mobile Improvements

  • • Optimized JavaScript code - 40% faster large text processing
  • • Added mobile-optimized CSS for better mobile experience
  • • Implemented Schema.org structured data for improved SEO
Future Plans

Continuous Improvement

  • • Planning additional text processing tools and advanced features
  • • Developing browser extension for easier access
  • • Expanding tutorial and technical article library

View full changelog: GitHub Commits

Real Performance Data

All metrics are verifiable and testable in your browser

<0.5s
Page Load Time

Chrome test, first paint

<100ms
Tool Response

Processing 100K chars

0 Bytes
Data Upload

100% local processing

100%
Open Source

GitHub public code

* Performance data tested on Chrome 120, Windows 11. Actual performance may vary by device and network.