Tools
20 tools
Utilities that run in your tab.
Nothing uploads, nothing is logged, and every one of them keeps working with the connection off. Built because I kept opening sketchy sites to do the same five things.
20 of 20 shown
Format
Encode
- Base64 Encode / DecodeText ↔ Base64, UTF-8 safeEncode text to Base64 or decode it back. Handles Unicode correctly.
- JWT DecoderInspect header & payloadDecode a JSON Web Token into its header and payload. Shows expiry. No signature data leaves your browser.
- URL Encoder / DecoderPercent-encode URL componentsEncode or decode URI components and query strings safely.
- Hash GeneratorSHA-1 / 256 / 384 / 512Hash text with the Web Crypto API. Supports SHA-1, SHA-256, SHA-384, SHA-512.
- HTML Entity Encode / DecodeEscape & unescape HTMLEncode reserved HTML characters to entities or decode them back to plain text.
Convert
- Unix Timestamp ConverterEpoch ↔ human dateConvert Unix timestamps to readable dates and back. Local and UTC.
- Color ConverterHEX ↔ RGB ↔ HSL + pickerConvert between HEX, RGB, and HSL with a live preview and picker.
- Number Base ConverterBin / Oct / Dec / HexConvert integers between binary, octal, decimal, and hexadecimal.
- JSON to TypeScriptJSON → interfacesGenerate TypeScript interfaces from a JSON sample. Infers nested objects, arrays, and optional fields.
- CSV ↔ JSON ConverterTables ↔ objectsConvert CSV to a JSON array of objects and back. Handles quoted fields, commas, and newlines.
- Cron Expression ParserDecode cron to plain EnglishBreak down a 5-field cron expression into each field and a human-readable schedule. Supports @daily-style aliases.
Text
- Diff CheckerCompare two blocks line by lineSide-by-side line diff for text, config, or code. Highlights added and removed lines.
- Case Convertercamel, snake, kebab, Title…Transform text between camelCase, snake_case, kebab-case, Title Case, and more.
- Slug GeneratorText → clean URL slugTurn any heading or title into a clean, URL-safe slug.
- Word & Character CounterCounts + reading timeLive counts of words, characters, sentences, lines, and estimated reading time.
- Regex TesterLive match highlightingTest a JavaScript regular expression against text with live match highlights.
Generate
- UUID GeneratorBulk v4 UUIDs, one clickGenerate cryptographically-random version-4 UUIDs in bulk.
- Lorem Ipsum GeneratorPlaceholder paragraphsGenerate placeholder text by words, sentences, or paragraphs.
- Password GeneratorStrong, crypto-randomGenerate strong random passwords with adjustable length and character sets. Uses the Web Crypto API.