Toolkit / Developer

Developer Tools

Format, validate, encode, decode, generate, and inspect common developer data. Pick a tool below to start converting, calculating, generating, or checking your result.

78 tools
JSON FormatterFormat, validate, minify, and inspect JSON locally.Works in browserFast pageJSON MinifierRemove whitespace from valid JSON.Works in browserFast pageJSON to CSVConvert JSON arrays into CSV.Works in browserFast pageCSV to JSONConvert CSV rows into JSON objects.Works in browserFast pageJSON to YAMLConvert JSON into simple YAML.Works in browserFast pageYAML to JSONConvert simple YAML into JSON.Works in browserFast pageJSON to XMLConvert JSON into simple XML.Works in browserFast pageXML to JSONConvert XML into JSON.Works in browserFast pageJSON to TypeScript InterfaceGenerate TypeScript shapes from JSON examples.Works in browserFast pageJSON to PHP ArrayConvert JSON into PHP array syntax.Works in browserFast pageJSON to JavaScript ObjectConvert JSON into a JavaScript object.Works in browserFast pageJSON Escape / UnescapeEscape or unescape JSON string content.Works in browserFast pageJSON Path TesterTest simple dot paths against JSON.Works in browserFast pageJSON Compare / DiffCompare two JSON snippets.Works in browserFast pageJSON Repair ToolRepair common JSON syntax issues.Works in browserFast pageCSV ViewerPreview CSV as aligned columns.Works in browserFast pageCSV FormatterFormat CSV into aligned columns.Works in browserFast pageCSV to TableConvert CSV into a readable table.Works in browserFast pageCSV to Markdown TableConvert CSV into a Markdown table.Works in browserFast pageCSV to SQL Insert StatementsGenerate SQL INSERT statements from CSV.Works in browserFast pageYAML FormatterFormat simple YAML.Works in browserFast pageYAML ValidatorValidate simple YAML.Works in browserFast pageXML FormatterFormat XML with indentation.Works in browserFast pageXML ValidatorValidate XML parser errors.Works in browserFast pageHTML FormatterBeautify HTML snippets.Works in browserFast pageCSS FormatterBeautify CSS snippets.Works in browserFast pageJavaScript FormatterBeautify JavaScript snippets.Works in browserFast pageTypeScript FormatterBeautify TypeScript snippets.Works in browserFast pageSQL FormatterFormat common SQL clauses.Works in browserFast pageSQL MinifierMinify SQL whitespace.Works in browserFast pageRegex TesterTest regular expressions against sample text.Works in browserFast pageRegex GeneratorGenerate common regular expression patterns.Works in browserFast pageRegex Cheat SheetReview common regex symbols.Works in browserFast pageCron Expression ParserExplain five-field cron expressions.Works in browserFast pageCron Expression GeneratorBuild a cron expression.Works in browserFast pageCron Next Run CalculatorSummarize cron schedule fields.Works in browserFast pageMarkdown Previewer with FrontmatterPreview Markdown and inspect frontmatter.Works in browserFast pageBase64 Encode / DecodeEncode or decode Base64 strings and files.Works in browserFast pageJWT DecoderDecode JWT headers and payloads without verifying secrets.Works in browserPrivate dataJWT Expiration CheckerCheck JWT expiry claims.Works in browserPrivate dataJWT Claims ViewerView decoded JWT claims.Works in browserPrivate dataSHA-256 Hash GeneratorGenerate SHA-256 hashes from text.Works in browserFast pageSHA-512 Hash GeneratorGenerate SHA-512 hashes from text.Works in browserFast pageHMAC GeneratorGenerate HMAC-SHA-256 signatures.Works in browserPrivate dataBasic Auth Header GeneratorGenerate Basic authorization headers.Works in browserPrivate dataBearer Token ParserExtract bearer tokens from headers.Works in browserPrivate dataCSP Header GeneratorBuild Content-Security-Policy headers.Works in browserFast pageCORS Header GeneratorBuild common CORS headers.Works in browserFast pageUUID GeneratorGenerate UUIDs and copy them in bulk.Works in browserFast pageUnix Timestamp ConverterConvert timestamps to local, UTC, and ISO dates.Works in browserFast pageRobots.txt GeneratorDraft robots.txt rules for common site patterns.Works in browserFast pageSitemap XML GeneratorGenerate sitemap XML from URLs.Works in browserFast pageOpen Graph Meta Tag GeneratorGenerate Open Graph meta tags.Works in browserFast pageTwitter Card Meta Tag GeneratorGenerate Twitter card meta tags.Works in browserFast pageMeta Tags CheckerExtract meta tags from HTML.Works in browserFast pageURL ParserBreak URLs into parts.Works in browserFast pageQuery String ParserConvert query strings into JSON.Works in browserFast pageQuery String BuilderBuild query strings from JSON.Works in browserFast pageUser Agent ParserDetect basic browser and platform details.Works in browserFast pageMIME Type LookupLook up common MIME types.Works in browserFast pageHTTP Status Code LookupLook up common HTTP status codes.Works in browserFast pageCSS MinifierMinify CSS snippets.Works in browserFast pageCSS BeautifierBeautify CSS snippets.Works in browserFast pageCSS Gradient GeneratorGenerate CSS gradient code.Works in browserFast pageBox Shadow GeneratorGenerate CSS box shadows.Works in browserFast pageText Shadow GeneratorGenerate CSS text shadows.Works in browserFast pageBorder Radius GeneratorGenerate CSS border radius code.Works in browserFast pageCSS Clamp GeneratorGenerate responsive clamp CSS.Works in browserFast pageREM to PX ConverterConvert rem values to pixels.CalculationFast pagePX to REM ConverterConvert pixels to rem values.CalculationFast pagePX to EM ConverterConvert pixels to em values.CalculationFast pageVW/VH CalculatorConvert pixels to viewport units.CalculationFast pageCSS Grid GeneratorGenerate CSS grid snippets.Works in browserFast pageFlexbox PlaygroundGenerate common flexbox CSS.Works in browserFast pageCSS Filter GeneratorGenerate CSS filter snippets.Works in browserFast pageSVG OptimizerLightly optimize SVG markup.Works in browserFast pageSVG MinifierMinify SVG markup.Works in browserFast pageSVG ViewerPreview SVG markup.Works in browserFast page