a0a@browser : ~ $ whoami
Small tools,
no tracking,
everything local.
A set of utilities and micro-toys that run entirely on your device. Nothing you type, paste, or generate leaves this tab. Built as one consistent system — each tool is a compact module with a common contract: input, output, copy.
> ↵ run
util/ 13 modules
- /json-yaml (in) → (out) Two-way convert. Validates both sides.
- /base64 (str) → (str) Encode / decode. UTF-8 safe.
- /url (str) → (str) encodeURI/Component, live swap.
- /uuid (n, v) → uuid[] v4 and v7, bulk generate.
- /hash (str) → digest SHA-1/256/384/512. Hex or base64.
- /timestamp (ts) → human Unix ↔ ISO ↔ human.
- /regex (re, txt) → match[] Live tester, JS flavour.
- /jwt (token) → {h, p} Decode header + payload. No keys transmitted.
- /contrast (fg, bg) → ratio WCAG 2.2 AA/AAA checker.
- /color (in) → hex|rgb|hsl|oklch Convert + ramp + contrast on one page.
- /gradient (stops) → css|svg Visual builder. oklch interp.
- /slugify (str) → slug URL-safe, transliterated, batched.
- /lorem (n, u) → text Classical, hipster, or pirate filler.
toy/ 3 modules
no matches — try a shorter query
contract/ what every tool guarantees
- local only
- Runs in your browser. No request is made with your input.
- no accounts
- Nothing to sign up for. No cookie banners, no sessions.
- no analytics
- No tracking pixels. No telemetry. No heatmaps.
- readable source
- View source on any page — every algorithm is right there.
- one shape
- Each tool takes an input, shows an output, and lets you copy it. That's it.