A minimal macOS menu bar app for managing cron jobs. No dock icon, no window — just a popover from the menu bar.

Your system crontab is the single source of truth. cmdloop is a GUI frontend for crontab -l / crontab -. It reads, writes, and displays entries directly from your crontab.

• Jobs created in cmdloop are tagged with a comment marker (# cmdloop:<uuid>) so the app can track them
• External cron entries (added via terminal) show up in the UI as "cronjob" — you can give them a friendly name, edit their schedule/command, run them, or delete them. Names are stored separately; editing the schedule or command rewrites that crontab line in place
• Disabling a job removes it from the crontab; enabling adds it back
• Jobs run via cron even if cmdloop isn't open

Job metadata (names, last run times) is stored in ~/.config/cmd-loop/config.json. Each run writes its own log file under ~/.config/cmd-loop/logs/<job-uuid>/, so run history works even when the app is closed. By default runs older than 10 days are deleted; in Settings you can instead keep a fixed number of runs per job.

Commands run in a login shell ($SHELL -l -c) so your PATH and environment are available.

brew tap gauthierkk/tap
brew install cmdloop

Then run it:

cmdloop

It launches in the background and appears as a ⏲ icon in your menu bar.

git clone https://github.com/Gauthierkk/cmd-loop.git
cd cmd-loop
./install.sh

brew uninstall cmdloop
brew untap gauthierkk/tap

swift build
swift run cmdloop

Click the ⏲ icon in your menu bar to open the popover.

Each job row shows a toggle, a status dot, the job name, its cron schedule, and the last run time. The status dot pulses green while a run is in progress, turns solid green after a clean exit, red after a failure, and stays dark until the job's first run.

Per-job actions:

• Toggle — enable/disable a job (adds/removes it from crontab)
• ▶ Run now — execute immediately in the background; the result lands in run history
• ☰ Logs — run count, last run time, and each run's output; expand to browse previous runs (10 per page)
• ✎ Edit / ✕ Delete — modify or remove a job (editing an external entry rewrites its crontab line directly and preserves its history)

Footer:

• ⚙ Settings — start at login, log retention (number of runs per job; default keeps 10 days), and Clear Logs
• + — add a command: name, cron expression (e.g. 0 8 * * *), and shell command (multi-line allowed)
• ⏻ — quit cmdloop (scheduled jobs keep running via cron)

cmdloop            # launch the menu bar app in the background
cmdloop --version  # print the version
cmdloop --help     # usage

• macOS 13+
• Swift 5.9+