Free Sysadmin & DevOps Tools
Cron expressions, nginx configs, Docker Compose, file permissions, and network references — the day-to-day utilities of server work, free in your browser.
9 free tools
755Chmod Calculator
Calculate Unix file permissions with a visual toggle — sanity-check the 777 your agent just chmod'd.
3-in-1
IPNetwork Tools
IP lookup, DNS resolver, and port scanner — all running client-side in your browser.
200HTTP Status Codes
Searchable reference for HTTP status codes — decode what your agent's API call actually returned, with common fixes.
📅Cron Visualizer
Visualize cron schedules on a timeline and calendar. See next 20 runs, frequency stats, click-to-build.
🐳Docker Compose
Build docker-compose.yml visually. Add services, ports, volumes, env vars. Template services. YAML output.
H:HTTP Header Explorer
Searchable HTTP header reference. Categories, examples, security header config generator.
▶NNginx Config Gen
Build nginx.conf visually. Server blocks, locations, proxy, SSL, caching. Templates and validation.
IPIP Address Info
View your public IP address. IPv4/IPv6 format validator. Approximate location info.
▶A.htaccess Gen
Build .htaccess rules visually. Redirects, rewrites, CORS, gzip, caching, error pages.