Developer tools

JSON, encoding, validation, and small helpers for the parts of the stack nobody wants to do by hand.

Format minified JSON beautifully.

Validate JSON syntax instantly with error feedback.

Encode or decode Base64 text for APIs and integrations.

Encode or decode URL strings for query and path safety.

Test regex patterns and preview matched outputs.

Format and validate API JSON responses for readability.

Generate valid JSON-LD schema blocks for common page types.

Convert JSON objects into PHP associative array syntax.

Generate Apache redirect rules for 301 and 302 scenarios.

Get prioritized optimization suggestions from LCP, CLS, and INP scores.

Calculate domain age from a registration date.

Summarize title, description, Open Graph, and meta tags from HTML source.

Draft robots.txt rules with allow/disallow paths and sitemap lines.

Scan HTML for risky or malformed link hrefs before launch.

Summarize HTML structure into JSON-friendly metadata.

Render JSON objects and arrays as nested HTML lists.

Remove common privacy-sensitive metadata keys from pasted text exports.