Code & Syntax Checkers
Validate JavaScript, TypeScript, Python, shell, Go, Rust, C/C++, CSS, HTML and Markdown syntax, and test the small things that break builds: regex, XPath, import paths, branch names and .gitignore patterns. 17 tools.
- HTML Validator
- HTML Accessibility Quick Audit
- CSS Validator
- Git Ignore Pattern Tester
- Branch Name Convention Validator
- CSS Specificity Conflict Checker
- CSS Specificity Visualizer
- XPath Finder and Tester
- Terms and Privacy Diff Viewer
- HTML Entity Encoder/Decoder
- Markdown Lint and Fix Assistant
- Markdown Link Rot Checker
- Markdown Heading Structure Auditor
- README Completeness Checker
- CSS Clamp() Typography Calculator
- Regex Explain and Test (Beginner Mode)
- Regex from Plain English Generator