✦ artisan.dev
Privacy-first · 100% client-side · No telemetry

✦ iamartisan.dev

A developer utility hub. Every tool runs entirely in your browser —
nothing ever leaves your machine.

Paste anything on this page — Smart Paste detects the right tool automatically
Format & Inspect
JSON Suite
Format, validate, minify, sort, compare
YAML ↔ JSONnew
Convert between YAML and JSON
SQL Formatternew
Beautify SQL queries, multiple dialects
JWT Debuggernew
Decode and inspect JSON Web Tokens
Encode & Convert
Base64
Encode and decode Base64 strings
URL Encode
Percent-encode and decode URLs
JSON Encode
Stringify, parse, and escape JSON
Number Bases
Binary, decimal, hex, octal converter
Data Sizenew
KB, MB, GB, TB with SI/binary toggle
Image Convertnew
PNG, JPG, WebP conversion in-browser
Generate
Passwordnew
Cryptographically secure password generator
UUIDnew
Generate UUID v4 in bulk with formats
Hashnew
SHA-256 / SHA-512 via Web Crypto API
Utilities
Regex Testernew
Test patterns with live match highlighting
Cron Editornew
Build and decode cron expressions visually
Markdownnew
Live preview with PDF export
Text Tools
Word count, case transform, trim, replace
Time Tools
Epoch, timezone, age calculator
Date Calcnew
Date arithmetic, day-of-week, business days

Next.js · Tailwind CSS · Dexie.js · Web Crypto API · All processing client-side