Free Data & Text tools. Right in your browser.

Data & Text 50

• API Response DiffFind breaking response changes
• Aspect Ratio CalculatorCalculate & compare image aspect ratios
• Base64 Encode / DecodeBase64 payload QA pack
• Binary ↔ Text ConverterText to binary and back
• Byte / Bit ConverterConvert between bytes, KB, MB, GB, TB
• Case ConverterUPPER, lower, camelCase…
• Cookie Header InspectorAudit Set-Cookie headers before release
• CORS Preflight InspectorDebug browser API access before release
• CSP Header InspectorAudit Content-Security-Policy before release
• CSV CleanroomAudit messy CSV before import
• cURL to Fetch ConverterConvert curl to JS fetch / axios
• Duplicate Line RemoverRemove duplicate lines from text
• Email Address ValidatorValidate email format & anatomy
• Form Data InspectorDecode and rebuild API form payloads
• Hash GeneratorSHA-1, SHA-256, SHA-512 online
• Image Resize CalculatorCalculate new dimensions while preserving aspect ratio
• IP Address InfoParse IPv4/IPv6: binary, class, CIDR, private/public
• JSON DiffCompare two JSON objects
• JSON MinifierCompress JSON by removing whitespace
• JSONPath TesterQuery JSON with JSONPath expressions
• JSON Schema GeneratorInfer and validate API contracts
• JSON to CSV ConverterExport JSON arrays as CSV
• JSON to SQL INSERTJSON array → INSERT statements
• JSON to TypeScriptGenerate TypeScript interfaces
• JSON to YAMLConvert JSON to YAML format
• JWT DecoderDecode, audit & hand off JWT claims
• Line CounterCount, number, and filter lines in any text
• List Sorter & DeduplicatorSort, dedupe & shuffle lines
• Markdown Table GeneratorCSV → Markdown or HTML table
• Morse Code ConverterText ↔ Morse, with audio playback
• Number Base ConverterDecimal, Hex, Binary, Octal
• Number FormatterCommas, currency, scientific notation
• Number to WordsConvert numbers to English words
• Password Strength CheckerAnalyze password entropy and weaknesses
• Regex TesterLive regex match highlighting
• Roman Numeral ConverterInteger ⇄ Roman numerals
• SQL FormatterBeautify & minify SQL queries
• SQL Query BuilderBuild SELECT queries visually
• String Escape / UnescapeEscape, review, and hand off string contexts
• Text Diff ViewerCompare two blocks of text
• Text RepeaterRepeat any text N times with a separator
• Text StatisticsWords, chars, reading time & more
• Text to SpeechConvert text to audio using your browser
• Unit ConverterConvert length, weight, temperature & volume
• Unix Timestamp ConverterTimestamp ↔ human-readable date
• URL Encoder / DecoderURL encoding QA pack
• URL ParserParse, clean, and QA share URLs
• Webhook Signature VerifierVerify and generate HMAC webhook signatures
• Word Frequency CounterAnalyze word and phrase frequency
• YAML ↔ JSON ConverterConvert between YAML and JSON