Dev Toolbox

Every small conversion you reach for during the day, in one panel that matches your editor theme. Everything runs locally in the WebView — nothing is uploaded anywhere.

Tools

| Tab | What it does |

|---|---|

| Base64 | Encode / decode, UTF-8 safe (emoji and non-Latin scripts round-trip) |

| URL | Percent-encode, decode, and parse a query string into key/value pairs |

| JSON | Format, minify, sort keys, escape as a JSON string — with parse errors |

| JWT | Decode header and payload, and show whether exp has passed |

| Text | camelCase, PascalCase, snake_case, kebab-case, Title Case, slugify, HTML escape/unescape, reverse and dedupe lines |

| Generate | UUID v4, random hex, strong passwords, lorem ipsum |

| Time | Unix seconds/milliseconds ⇄ ISO 8601 ⇄ local ⇄ UTC |

| Color | HEX ⇄ RGB ⇄ HSL with a live swatch and WCAG contrast ratios |

Usage

Notes

JWT decoding never verifies the signature. Use it to inspect a token, never to decide whether one is trustworthy.