Free browser utilities

Developer tools

Find a tool for text, code, calculations, images or network information.

40 tools

ASCII & Unicode Code ConverterEncode text as decimal, binary or hexadecimal code points, or decode the values.Base64 Encoder & DecoderEncode UTF-8 text or decode Base64 explicitly, with hexadecimal output for binary bytes.Binary, Octal, Decimal & Hex ConverterOpen the Binary, Octal, Decimal & Hex Converter.Conservative HTML MinifierRemove HTML comment nodes while preserving text whitespace and raw script/style content.Cron Expression GeneratorBuild a validated five-field cron schedule and a single-line command.CSS MinifierMinify CSS with a syntax-aware parser.CSV to JSON ConverterConvert header-based CSV while correctly handling quoted commas, quotation marks and multiline values.HTML Entity Encoder & DecoderEncode special HTML characters or decode semicolon-terminated entities.HTML Table GeneratorOpen the HTML Table Generator.HTML, CSS & JavaScript MinifierChoose the code language and use its dedicated parser.HTTP Status Codes ReferenceOpen the HTTP Status Codes Reference.JavaScript MinifierRemove unnecessary syntax spacing using a JavaScript parser while preserving strings.JSON Formatter & BeautifierValidate and format JSON while preserving large numeric literals.JSON to CSV ConverterConvert an array of JSON objects to correctly quoted CSV.JSON to YAML ConverterConvert JSON types, scalar values and empty containers with a YAML serializer.JSON-LD Schema Markup GeneratorOpen the JSON-LD Schema Markup Generator.JWT DecoderDecode the header and payload of a three-part JWT locally.Keyboard Event InspectorFocus the capture field and press a key to inspect its event properties.Markdown Preview & HTML ConverterPreview sanitized Markdown and copy the resulting HTML.MD5 Checksum GeneratorCalculate a legacy MD5 text checksum.Morse Code TranslatorOpen the Morse Code Translator.Password GeneratorCreate random passwords with Web Crypto.Password Strength CheckerCheck length, repetition and predictable patterns.Regular Expression TesterTest JavaScript patterns in a worker with a bounded execution time.SHA-1 Text Hash GeneratorCalculate a SHA-1 digest from exact UTF-8 text.SHA-256 Text Hash GeneratorCalculate a SHA-256 digest from exact UTF-8 text.SHA-512 Text Hash GeneratorCalculate a SHA-512 digest from exact UTF-8 text.SQL FormatterFormat SQL while preserving quoted values and identifiers.SQL INSERT GeneratorGenerate INSERT rows from JSON objects with the requested column order.SQL INSERT to JSON ConverterParse quoted INSERT values, multiple rows and repeated statements without splitting strings at commas.SVG Code Cleaner & OptimizerSanitize and optimize SVG source locally.SVG to CSS Background ConverterOpen the SVG to CSS Background Converter.Text & Binary ConverterConvert text to UTF-8 binary bytes and decode binary back to text.Text Diff CheckerCompare complete line sequences, including inserted or appended lines.Unix Permission CalculatorConvert owner, group and other permissions to octal and symbolic forms.Unix Timestamp ConverterConvert a Unix timestamp to UTC or an ISO date/time to a timestamp.URL Encoder & DecoderEncode a URL component or decode percent-encoded text.URL ParserInspect URL components and preserve repeated query parameters.UUID v4 GeneratorGenerate random UUIDs with your browser’s Web Crypto source.XML FormatterFormat valid XML with indentation and preserved text content.