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Text & Code
Clean up, convert and inspect text and code. All 17 of them run on your device — no sign-up, no upload.
JSON Formatter & ValidatorPretty-print, minify, and validate JSON instantly. Runs entirely in your browser.JSON to TypeScript ConverterGenerate TypeScript interfaces from any JSON sample, including nested objects and arrays.Word & Character CounterCount words, characters, sentences, paragraphs and estimated reading time.Text Case ConverterConvert between UPPER, lower, Title Case, camelCase, snake_case, kebab-case and more.Base64 Encode / DecodeEncode and decode Base64 with correct UTF-8 handling, so emoji and accents survive the round trip.URL Encoder / DecoderPercent-encode and decode URL components. Encode only what needs encoding.Hash GeneratorGenerate MD5, SHA-1, SHA-256 and SHA-512 checksums locally. Nothing is uploaded.JWT DecoderDecode a JSON Web Token and read its header and payload. Decoding only — the signature is not verified.Text Diff CheckerCompare two blocks of text line by line and see exactly what was added, removed or kept.Regex TesterTest JavaScript regular expressions against sample text and inspect every match and group.Slug GeneratorTurn headlines into clean, URL-safe slugs with optional lowercasing and separator choice.Duplicate Line RemoverRemove duplicate lines from a list, with options to trim whitespace, ignore blank lines and sort.Number to WordsSpell out numbers in English words, including decimals and negative values.HTML Entity ConverterEscape and unescape HTML entities so markup shows up as text instead of rendering.Markdown to HTMLConvert Markdown to clean HTML with a live preview. Supports headings, lists, code, links and emphasis.SQL FormatterBeautify SQL with upper-cased keywords and one clause per line.XML FormatterPretty-print XML markup and check whether it is well-formed.