Developer Tools (69 tools)
JSON, code formatting, regex testing and developer helpers
{}JSON Formatter & ValidatorBeautify, minify and validate JSON with precise error locations.⇲JSON Minify & EscapeTurn JSON into a single line or an escaped string literal.◧JSON to Entity ClassConvert a JSON shape into Java entity classes, nested objects included.⇹JSON DiffCompare two JSON documents key by key.⌘JS Beautify & MinifyBeautify or minify JavaScript with indentation and comment control.≣CSS Beautify & MinifyBeautify or compress CSS with comments removed.⌗HTML Beautify & MinifyReindent HTML into a readable tree or compress it.⛁SQL FormatterReindent SQL and uppercase keywords for readability.⟨⟩XML FormatterIndent or compress XML to inspect configs and payloads..*Regex TesterHighlight regex matches live with groups and positions.⌸Regex Code GeneratorGenerate Java, JS, Python, PHP and Go snippets from a regex.⏱Cron Expression GeneratorBuild cron expressions visually with a readable explanation.🖥User Agent ViewerParse your user agent into OS, engine and device details.🔗URL ParserSplit a URL into parts and tabulate its query parameters.<HTML Entities EscapeEscape characters into HTML entities or decode them back.⇄Text DiffCompare two texts line by line with clear markers.🖼Image to Base64Turn a local image into embeddable Base64 data.⟨⟩JSON to XMLConvert JSON data into XML.{}XML to JSONConvert XML documents into JSON.≡YAML to JSONConvert YAML configuration into JSON.⋮JSON to YAMLConvert JSON data into YAML.⊞CSV to JSONConvert CSV table data into JSON.⊟JSON to CSVExport a JSON array as CSV.🗜Gzip CompressorCompress text to gzip or decompress base64 gzip.🔍JSONPath QueryExtract values from JSON using JSONPath.{ }TOML to JSONConvert TOML configuration into JSON.[ ]JSON to TOMLOutput JSON as TOML configuration.⌗XPath TesterTest XPath expressions against XML.◈GraphQL FormatterIndent and structure GraphQL queries.⟦SQL IN Clause BuilderTurn a list of values into a SQL IN clause.⌨Curl Command BuilderTurn an API request into a curl command.📐CSS Unit ConverterConvert px and rem both ways.🎨SCSS / LESS ConverterFlatten SCSS or LESS into CSS.🧾XML & XSL NotesFormat XML and understand XSLT limits.🧱JSON to StructGenerate typed code from JSON.🔍HTML Tag CheckerCheck that HTML tags are paired.📊CSV Column EditorInsert, delete and swap CSV columns.⏱Cron Expression ExplainerUnderstand what a cron expression means.🌿Git Command ReferenceLook up how a git command works.⌨Key Code ReferenceKey code table with live key test.\Code String EscaperText to code string literal.📏px to rem / em / vw Converterpx ⇄ rem / em / vw conversion.🔌WebSocket TesterTest WebSocket connections in-browser.🗄SQL FormatterBeautify SQL queries.🔗Bulk URL OpenerExtract and organise URLs in bulk.📐CSS Unit ConverterConvert a pixel value into rem, em, vw, vh and pt using the root size and viewport width.▭Aspect Ratio CalculatorGet the simplified aspect ratio from width and height, or the matching height for a target width.📱Responsive BreakpointsDerive a set of common breakpoints from a base viewport and scale, with media-query syntax.🌐HTTP Status LookupLook up an HTTP status code for its meaning, class and common causes.🔑JWT InspectorSplit a JWT into its three parts and convert the issued-at and expiry timestamps.🌐subnet CalculatorNetwork and broadcast address, usable hosts and mask from an IP and prefix length.⏱️transfer time CalculatorTheoretical download time from file size and bandwidth, with comparisons at other rates.🔤CAPTCHA Image GeneratorRender CAPTCHA images with noise lines.🔡Character Encoding ConverterConvert text and bytes, decoding GBK or Big5 mojibake.🔒AES Encryption ToolEncrypt text with a passphrase using AES-256 GCM or CBC.📝Markdown to HTML ConverterParse Markdown into HTML with a live preview.🖊Rich Text EditorWYSIWYG editing with HTML, text and Markdown export.Escape Character ConverterEscape or unescape strings per language context.🗜SQL Minifier & FormatterMinify or pretty-print SQL, dropping comments safely.📊CSV Formatter & AlignerAlign CSV columns, or convert to a table or JSON.🌐DNS Lookup ToolQuery the DNS records of a domain name.🔢IPv6 Address ConverterExpand or compress IPv6 addresses and identify the type.🔌Port Reference LookupFilter common ports by number or service name.🏷Version ComparatorCompare two version strings, pre-release aware.🧩String Template FormatterFormat strings with several placeholder styles.🔎Script & Charset DetectorDetect the script of a text and count characters.⌨Wubi input code Reference TableWubi code and root zones for a character.⌨Cangjie input code Reference TableCangjie code and letter groups.🔣Regex CheatsheetA reference of common regex metacharacters and quantifiers with examples.