Dev-coding Tools
Explore our collection of free dev-coding utilities. Fully secure, client-side execution right in your browser.
HTML to JSX Converter
Instantly convert raw HTML snippets into React JSX (class to className, etc).
cURL to JS Fetch
Paste a cURL command to get its equivalent JavaScript Fetch API code.
JSON to YAML Converter
Instantly convert structured JSON files into readable YAML.
XML Formatter & Beautifier
Beautify and format messy XML documents with custom indentation.
URL Parser & Decoder
Break down any URL into its exact components and decode parameters.
User-Agent Parser
Extract browser, OS, and device information from any User-Agent string.
JSON Schema Validator
Validate JSON documents against a JSON Schema.
Text & Code Diff Checker
Compare two blocks of text or code to see exactly what changed.
Chmod Calculator
Visually generate Linux file permissions.
JavaScript Keycode Info
Press any key to get its JavaScript event codes.
CSV to Excel Converter
Convert raw CSV files to formatted XLSX spreadsheets.
Excel to CSV
Extract sheets from Excel to raw CSV text.
Excel to JSON
Read Excel sheets directly into JSON objects.
Excel Diff Checker
Compare two Excel sheets and find the differences instantly.