All Tools
25 developer utility tools. All processed in your browser.
Data Formats
JSON Formatter & Validator
Format, validate and minify JSON online — processed entirely in your browser. Supports 2-space, 4-space and tab indentation.
Data FormatsYAML ↔ JSON ↔ TOML Converter
Convert between YAML, JSON, and TOML formats. Bidirectional conversion.
Data FormatsCSV ↔ JSON Converter
Convert between CSV and JSON. Table view with sorting. Auto-detect delimiter.
Data FormatsEncoding
Generators
Date & Time
Web
Security
Text
Text Diff / Compare
Compare two text strings visually. Split and unified view. Syntax highlighting.
TextRegex Tester
Test regular expressions against sample text. Supports all flags. Pattern library included.
TextCase Converter
Convert text between camelCase, PascalCase, snake_case, kebab-case, and more.
TextMarkdown → HTML Preview
Preview Markdown as HTML. Live preview with sanitized output.
TextString Utilities
Word count, reverse, slugify, sort lines, remove duplicates, and more.
TextDevOps
Cron Expression Builder
Build and validate cron expressions. See human-readable description and next 5 runs.
DevOps.env File Validator
Validate .env files. Detect duplicate keys, invalid format, and best practices.
DevOpsOpenAPI / JSON Schema Validator
Validate OpenAPI 3 and JSON Schema documents. JSON and YAML support.
DevOps