Tools, agents, and playful machines.
In-browser apps
Tools
all tools ↗- base64 encoder / decoder
Unicode-safe Base64 encode and decode, with URL-safe variant.
- url encoder / decoder
Percent-encode and decode URLs and query components.
- jwt encoder / decoder
Decode a JWT's header, payload and time claims — or encode and HMAC-sign a new token.
- hash digest
SHA-1 / SHA-256 / SHA-384 / SHA-512 of text or files, via WebCrypto.
- number base converter
Binary, octal, decimal, hex — arbitrary precision via BigInt.
- unix timestamp converter
Epoch seconds/millis ⇄ human dates, timezone-aware, with relative time.
- cron explainer
Cron expression → plain-English schedule + the next run times.
- uuid generator
UUID v4 and v7, single or bulk, copy-ready.
- json formatter & validator
Pretty-print, minify, validate — with precise error positions.
- case converter
camelCase, snake_case, kebab-case, Title Case, CONSTANT_CASE and more.
- text diff
Line and word diff of two texts, computed locally.
- regex tester
Live match highlighting, capture groups, and a common-pattern library.
- markdown editor
Split-pane markdown editor — live preview, right-to-left aware, copy as HTML, Markdown, or rich text.
- word & character counter
Words, characters, lines, reading time, and word frequency.
Work
-
inkjet ↗
2,657 downloadsOpen-source CLI for pocket Bluetooth thermal printers — text, images, and QR codes from the terminal. Ships an agent-first SKILL.md so AI agents can discover and drive it autonomously.