Developer Tools

JSON Formatter

Format, validate and beautify JSON data.

Base64 Encoder/Decoder

Encode or decode Base64 strings instantly.

UUID Generator

Generate random UUIDs (v4) in bulk.

Regex Tester

Test and debug regular expressions with live match.

Angular Error Explainer

Look up any Angular error code and get a plain-English explanation, causes, and fix.

Regex Builder

Browse 22+ common regex patterns and get a token-by-token explanation of any regex.

SQL ER Diagram Generator

Paste SQL CREATE TABLE statements and instantly generate an ER diagram. Export as SVG or PNG. Runs entirely in your browser.