Linux Utilities
Generate systemd unit files, timers, shell commands, and manage Linux system configurations.
Crontab to Systemd Timer & Service Unit Generator
Free online Crontab to Systemd Timer generator. Convert 5-field cron schedules into Systemd OnCalendar timers and production .service unit files.
Linux Logrotate Config Generator & Validator
Free online Linux Logrotate configuration generator. Build production /etc/logrotate.d/ files with copytruncate, size limits, and debug commands.
Rsync Command Generator & Transfer Builder
Free online Rsync command generator. Build production file sync commands with dry-run flags, SSH keys, custom ports, and exclude rules.
iptables to UFW Command Converter & Batch Translator
Free online iptables to UFW converter. Translate iptables CLI rules and iptables-save dumps into executable UFW bash scripts with anti-lockout safeguards.
Cron Expression Generator
Free online cron expression generator. Build 5-field Linux crontab schedules with quick presets and real-time field validation.
Hash Generator
Free online Hash Generator. Generate MD5, SHA-1, SHA-256, SHA-384, SHA-512 hashes and HMAC signatures with Hex and Base64 output options.
Linux Permissions Calculator
Free online Linux Permissions Calculator. Convert chmod octal numbers (755, 644) into symbolic notation (-rwxr-xr-x) and interactive checkbox matrices.
Systemd Resource Limits Calculator
Free online Systemd Resource Limits Calculator. Configure cgroups MemoryMax, CPUQuota, TasksMax directives and live systemctl set-property commands.
Crontab Multi
Free online Crontab Multi-Schedule Collision & Timeline Visualizer. Parse crontab dumps, analyze 24-hour concurrency heatmaps, and generate staggered offsets.