Developer Tools

Paste messy JSON and turn it into clean, readable output.

Encode plain text to Base64 or decode Base64 back to readable text.

Convert Unix timestamps into readable dates and back again.

Generate MD5, SHA-1, SHA-256, and SHA-512 cryptographic hashes for any text instantly.

Generate cryptographically random UUID v4 values in bulk — standard, uppercase, no-hyphens, or braces format.

Test and debug regular expressions in real time — see matches highlighted, groups extracted, and replacements applied instantly.

Build cron schedule expressions visually and get a plain-English description of when they will run.

Look up geolocation, ISP, timezone, and organisation for any IP address — or instantly find your own public IP.

Generate strong, random passwords with custom length and character sets — cryptographically secure, never sent to a server.

Generate QR codes for any URL or text — customise size, error correction, and colors, then download as PNG.

Decode and inspect JSON Web Tokens — view header, payload, claims, and expiry status instantly in your browser.