Formatting tools

Format, validate, convert, and inspect JSON, XML, HTML, CSV, YAML, TOML, SQL, GraphQL, timestamps, stack traces, CSS, JavaScript, Markdown, SVG, and structured data. Includes string case conversion, text statistics, line sorting, escape/unescape, whitespace cleanup, HTML entities, Unicode escapes, Morse code, JSONPath, and data URI tools.

JSON PrettifierFormat and validate JSON data XML/HTML FormatterFormat, validate, prettify, and minify XML or HTML data XML ↔ JSON ConverterBidirectional XML-to-JSON and JSON-to-XML converter using the familiar @attr / _text convention; repeated tags collapse into arrays JSONPath Query EngineTest JSONPath expressions — supports dot/bracket access, wildcards, slices, recursive descent (..), and filter [?(...)] expressions GraphQL FormatterFormat and validate GraphQL queries, mutations, subscriptions, and fragments — preserves string literals, args, blocks, lists, and comments TOML ParserParse, validate, format, and round-trip TOML to/from JSON — spec-compliant via smol-toml CSS Minifier / BeautifierMinify CSS by stripping comments and whitespace, or beautify minified CSS with re-indentation — preserves spaces inside parentheses for values like rgba() and calc()JavaScript MinifierStrip comments and whitespace from JavaScript while preserving strings, template literals, and regex syntax — no AST, no variable renaming, just fast cosmetic minification Data URI ConverterConvert text to a data: URI with UTF-8 Base64 encoding, or decode a data: URI back to text or binary bytes — handles any MIME type Markdown Live PreviewWrite Markdown on the left, see the rendered HTML preview on the right — supports headings, bold, italic, code, lists, quotes, links, autolinks, and GFM strikethrough SVG EditorEdit SVG code on the left, see the live preview on the right — strips scripts and event handlers for safety, adjusts missing xmlns SVG Path VisualizerPaste an SVG path d attribute and see it rendered instantly — includes presets (curve, star, arc, bezier), adjustable stroke/fill colors, and an optional grid overlay HL7 ParserRead and parse HL7 v2 messages into structured JSON HL7 to FHIR ConverterConvert HL7 v2 messages to FHIR R4 Bundles Diff / Text CompareCompare two texts and see color-coded differences Stack Trace FormatterFormat and beautify JavaScript, Python, Java, C#, Go, PHP, and Ruby stack traces Beautify Stack TraceClean up and beautify messy error stack traces for readability Stack Trace AnalyzerAnalyze stack traces to identify root causes, explain errors, and separate app from framework code Base64 Encoder/DecoderEncode and decode Base64 strings File Size ConverterConvert file sizes between decimal (SI) and binary (IEC) units Unix Timestamp ConverterConvert Unix epoch timestamps to human-readable dates — single or batch — with timezone support Cron Expression TesterTest and parse cron expressions, explain them in plain English, and preview upcoming run times across timezones Cron Expression GeneratorBuild cron expressions visually with field controls — no syntax knowledge required URL Encoder / DecoderEncode and decode URLs using encodeURIComponent and encodeURI YAML/JSON Converter & FormatterConvert between YAML and JSON, or format and validate standalone YAML CSV ↔ JSON ConverterConvert between CSV and JSON with auto-detection, delimiter handling, type inference, and nested-object flattening CSV Viewer / Table ExplorerPaste CSV and explore it as a sortable, searchable table with sticky headers — no spreadsheet required SQL FormatterFormat and prettify SQL queries with support for MySQL, PostgreSQL, SQLite, and more String Case ConverterConvert text between camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, dot.case, path/case, title, and sentence case Text StatisticsLive word, character, sentence, line, and paragraph counts with reading time and average length stats Line Sorter & DeduplicatorSort lines alphabetically, numerically, by length, with optional deduplication and trimming String Escape / UnescapeEscape and unescape text for JSON, XML, CSV, regex, or POSIX shell contexts Whitespace Visualizer & CleanerSpot invisible whitespace characters (tabs, NBSP, zero-width, trailing) and clean them with batch options HTML Entity Encoder / DecoderEncode text to HTML entities (named, decimal, hex) and decode entities back to characters Unicode Escape / UnescapeConvert text to \uXXXX and \u{XXXXX} Unicode escapes and back — handles emoji and surrogate pairs Morse Code TranslatorConvert text to ITU-R M.1677-1 Morse code and back — supports letters, digits, common punctuation, and word breaks