Every free tool, organized by what it checks - pick a category to see all the tools in it.
Check SSL/TLS certificates for validity, expiry, issuer, and supported...
Look up and inspect DNS records, propagation, and nameserver configura...
Check domain registration, age, expiry, and WHOIS/RDAP ownership detai...
Check the live status, HTTP headers, and technical health of any websi...
Scan for common website security misconfigurations, from HTTP headers...
Check SPF, DKIM, DMARC, and MX records for email deliverability and se...
Check response time, compression, caching, and other website performan...
Lightweight on-page SEO analysis - meta tags, headings, canonical, and...
Build, test, and debug HTTP/API requests - request builders, cURL tool...
Generate Git commands, branch names, commit messages, .gitignore files...
Generate and validate Dockerfiles, Docker Compose files, CI/CD pipelin...
Calculate file permissions and generate common Linux, Nginx, Apache, S...
Format, validate, and generate SQL queries and schema - plus MongoDB,...
Parse and generate AWS ARNs, IAM/S3 policies, and CLI commands - plus...
Generate and validate Kubernetes manifests - Deployments, Services, Co...
Format, convert, and inspect JavaScript, PHP, and Python code - plus g...
Generate CSS gradients, shadows, flexbox/grid layouts, animations, and...
Format, minify, and convert SVG and images - Base64/Data URI tools, fa...
Generate strong passwords and real password hashes - bcrypt, Argon2, P...
Convert between CSV, JSON, XML, YAML, INI, TOML, Markdown, HTML, and p...
Convert number bases, calculate bitwise operations and data storage un...