- NotepadFast notes, autosaved as you type. Sign in and they follow you.
- JSON FormatterFormat, minify, and validate JSON with precise error positions.
- Base64Encode and decode Base64 — UTF-8 safe, URL-safe variant included.
- URL EncoderPercent-encode and decode URLs or query components.
- UUID GeneratorGenerate cryptographically-random v4 UUIDs, one or in bulk.
- Hash GeneratorSHA-1 / SHA-256 / SHA-384 / SHA-512 digests of any text.
- JWT DecoderDecode a JWT header + payload and check expiry — locally, safely.
- Unix TimeEpoch ↔ human date converter with a live now-ticker.
- Regex TesterTry a JavaScript regex against sample text; see every match + groups.
- Word CounterWords, characters, lines, bytes, and reading time — live.