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Developer Tools
Format and validate JSON, encode data and inspect text. Each tool explains its input format and the limits of its output.
49–72 of 96 tools
Browse categories →JSON to TypeScript Type
Json To Typescript Type for practical everyday workflows. Enter the requested values to get a clear result.
JSON to YAML Converter
Json To Yaml Converter for practical everyday workflows. Enter the requested values to get a clear result.
JSON Validator
Check JSON syntax and return a clear valid/invalid result.
JSON Value Extractor
Json Value Extractor for practical everyday workflows. Enter the requested values to get a clear result.
JWT Decoder (No Signature Verification)
Decode the header and payload of a compact JSON Web Token locally. This does not verify its signature.
Markdown to HTML Basic
Markdown To Html Basic for practical everyday workflows. Enter the requested values to get a clear result.
Password Generator
Generate strong random passwords with your choice of length and characters.
QR Code Generator
Create a free QR code for any link, text, Wi-Fi details or contact, and download it as a crisp SVG.
Regex Escape Helper
Escape regular-expression metacharacters for literal matching.
Regex Tester
Test a JavaScript regular expression against sample text and list matches.
RGB to CMYK Converter
Convert RGB colour values to CMYK percentages for print.
RGB to Hex Converter
Convert RGB colour values to a hex colour code.
RGB to HSL Converter
Convert RGB colour values to hue, saturation and lightness.
SQL Formatter Basic
Sql Formatter Basic for practical everyday workflows. Enter the requested values to get a clear result.
SQL in Clause Builder
Sql In Clause Builder for practical everyday workflows. Enter the requested values to get a clear result.
Text to Binary Converter
Convert any text to binary code, one 8-bit byte per character (UTF-8).
URL Encoder and Decoder
Encode or decode URL components safely.
URL Query String Builder
Build a query string from key=value lines.
URL Query String Parser
Parse query parameters from an absolute URL.
URL Slug Generator
Url Slug Generator for practical everyday workflows. Enter the requested values to get a clear result.
UUID Generator
Generate one or more random version 4 UUID identifiers.
XML Escape Tool
Escape reserved XML characters in text content.
XML Formatter
Pretty-print or minify XML and catch unclosed or mismatched tags.
Developer Average Value Calculator
Developer Average Value Calculator: Calculate the average value per item from a total and count.