JSON, regex, hashing, encoding, and coding utilities
Format, beautify, minify, and validate JSON data instantly. Supports syntax highlighting and error detection.
DeveloperEncode text to Base64 or decode Base64 strings instantly. Supports UTF-8 and binary data.
DeveloperEncode or decode URLs and query strings. Handles special characters, spaces, and Unicode.
DeveloperGenerate random UUIDs (v4) instantly. Bulk generate up to 1000 UUIDs at once.
DeveloperTest regular expressions with real-time matching, highlighting, and match group extraction.
DeveloperConvert JSON data to well-formed XML instantly in your browser.
DeveloperConvert XML data to JSON format instantly in your browser.
DeveloperConvert JSON data to clean YAML format instantly.
DeveloperConvert YAML data to JSON format instantly in your browser.
DeveloperConvert JSON arrays of objects to CSV format with headers.
DeveloperConvert CSV data to a JSON array of objects.
DeveloperVisualize JSON as an interactive collapsible tree structure.
DeveloperCompare two JSON objects and highlight differences.
DeveloperFormat, beautify, and validate XML data instantly.
DeveloperFormat and validate YAML data. Clean up indentation and structure.
DeveloperView CSV data in a sortable, searchable table. Paste or upload CSV files.
DeveloperGenerate TypeScript interfaces from JSON data automatically.
DeveloperEncode special characters to HTML entities or decode them back.
DeveloperConvert images to Base64 data URIs or decode Base64 back to images.
DeveloperConvert text to Unicode escape sequences and back.
DeveloperEscape and unescape strings for JSON, HTML, JavaScript, SQL, and more.
DeveloperBuild and understand cron expressions visually. Free online cron job scheduler builder.
DeveloperCalculate Unix file permissions in octal and symbolic notation. Interactive chmod calculator.
DeveloperConvert between Unix timestamps and human-readable dates. Free online epoch converter.
DeveloperDecode and inspect JSON Web Tokens. View header, payload, and signature. Free online JWT debugger.
DeveloperSearchable reference of all HTTP status codes with descriptions. Free online HTTP status code lookup.
DeveloperLook up MIME types by file extension or search by type. Free online MIME type reference.
DeveloperParse and analyze browser user agent strings. Free online user agent decoder.
DeveloperInteractive ASCII character table with decimal, hex, octal, and binary values. Free online ASCII reference.
DeveloperBreak down URLs into their components - protocol, host, path, query, hash. Free online URL parser.
DeveloperBuild URL query strings from key-value pairs. Free online query string encoder.
DeveloperGenerate .gitignore files for popular languages and frameworks. Free online gitignore builder.
DeveloperCompare two text blocks and highlight the differences. Free online diff tool.
DeveloperCount lines of code, blank lines, and comment lines. Free online LOC counter.
DeveloperGenerate random tokens, API keys, and hex strings. Cryptographically secure. Free online token generator.
DeveloperGenerate HMAC signatures using SHA-256, SHA-384, or SHA-512. Free online HMAC calculator.
DeveloperTest glob patterns against file paths. Free online glob pattern matcher.
DeveloperGenerate Universally Unique Lexicographically Sortable Identifiers. Free online ULID generator.
DeveloperGenerate compact, URL-safe, unique IDs. Free online NanoID generator.
DeveloperGenerate Base64-encoded HTTP Basic Authentication headers. Free online Basic Auth generator.
DeveloperHash passwords with PBKDF2-SHA256. Secure client-side password hashing with configurable iterations.
DeveloperSearch and copy emojis by name or category. Free online emoji finder with one-click copy.
DeveloperConvert between hexadecimal and decimal number systems. Supports large numbers.
DeveloperConvert between binary and decimal. Supports both directions with bit grouping.
DeveloperConvert hex strings to readable ASCII text and vice versa.
DeveloperShow the binary representation of floating-point numbers in IEEE 754 single and double precision.
DeveloperSwap byte order between big-endian and little-endian for hex values.
DeveloperVisualize AND, OR, XOR, NOT, and shift operations on binary numbers.