Free Utilities
Free Online Tools
300+ free tools — no signup, no upload, works right in your browser.
Most Popular Tools
DNS Lookup
Look up DNS records for any domain ƒ?" A, AAAA, MX, CNAME, TXT, NS, SOA, PTR. Queries Google Public DNS.
CSS Grid Generator
Visual CSS Grid layout builder with live preview, named areas, track sizing, and multi-format code output. 100% client-side.
Port Checker
Check if a specific port is open on any server or IP address. Scan common ports like HTTP, HTTPS, SSH, FTP, and database ports.
JWT Decoder
Decode and inspect JWT tokens. View header, payload, signature with expiry status and claim annotations.
HTML Minifier
Minify HTML to reduce file size. Remove comments, collapse whitespace, strip redundant attributes, and minify inline CSS/JS.
YAML to JSON Converter
Convert between YAML and JSON instantly. Bidirectional conversion, auto-detect format, Kubernetes manifest detection. 100% client-side.
UUID Generator
Generate UUID v4, v1, and v7 with bulk generation, validation, and format options.
Regex Tester
Build and test regular expressions with real-time match highlighting, capture groups, and code generation.
Markdown Editor
Write Markdown with live preview, GitHub-Flavored Markdown support, toolbar formatting, export to .md or HTML, and dark mode.
HTML Beautifier
Format, minify, and clean HTML code with customizable indentation, inline CSS/JS support, HTML validation, JSX conversion, and one-click copy.