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Professional developer utilities — JSON formatting, encoding/decoding, hashing, regex testing, code conversion, SQL formatting, cron builder, API testing & more.
Showing 26 of 26 tools
Format, beautify, and validate JSON data.
Open ToolEncode and decode Base64 strings.
Open ToolEncode and decode URL components.
Open ToolDecode and inspect JWT tokens.
Open ToolGenerate MD5, SHA-1, SHA-256 hashes.
Open ToolTest and debug regular expressions.
Open ToolMinify HTML code for production.
Open ToolMinify CSS stylesheets.
Open ToolConvert JSON data to YAML format.
Open ToolConvert Markdown text to HTML.
Open ToolGenerate unique UUIDs (v4).
Open ToolConvert between HEX, RGB, HSL.
Open ToolGenerate TypeScript interfaces from JSON.
Open ToolGenerate strong, secure passwords.
Open ToolCompare code snippets and show differences.
Open ToolCalculate Unix file permissions.
Open ToolRemove whitespace from JSON for smaller payload size.
Open ToolBeautify and format SQL queries.
Open ToolFormat and beautify XML documents.
Open ToolEncode and decode HTML entities.
Open ToolParse and analyze HTTP response headers.
Open ToolBuild and visualize cron schedule expressions.
Open ToolCreate JWT tokens for testing and development.
Open ToolSend HTTP requests and inspect responses.
Open ToolGenerate multiple UUIDs at once (up to 10,000).
Open ToolCommon regex patterns with testing — ready to copy and use.
Open Tool