Developer Tools
JSON, formatters, parsers, regex, and data pipelines. For developers.
Meta Tags Generator
Open Graph & Twitter Card meta tags
JSON Formatter
Format, validate & minify JSON
MCP JSON Generator
Build MCP config for Cursor, Claude
.env Formatter
Format & validate .env files
API Schema Validator
Validate OpenAI/Anthropic tool schemas
CSV ↔ JSON
Convert between CSV and JSON
JSON to Base64 CSV
JSON → CSV → Base64
YAML to CSV
Convert YAML to CSV
Entities to JSON
Decode HTML entities, format JSON
YAML ↔ JSON
Convert between formats
SQL Formatter
Format & minify SQL
XML Formatter
Format & validate XML
CSS Formatter
Format or minify CSS
HTML Formatter
Pretty-print HTML
HTML Entities
Encode/decode HTML entities
Escape/Unescape
Escape for JSON, HTML, URL
Hash Generator
MD5, SHA-1, SHA-256 hashes
JWT Decoder
Decode JWT tokens
Regex Tester
Test regular expressions
URL Parser
Parse URL components
User Agent Parser
Parse browser/OS from UA
Cron Explainer
Explain cron expressions
Cron Generator
Build cron expressions visually
API Mock Generator
Generate fake REST/JSON from schema
Semver Compare
Compare version numbers
Unicode Lookup
Char ↔ code point