CronMaster

CronMaster

Cron Tester & Next-Run Preview

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Free
In-App Purchases

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Details

Released
October 20, 2026
Updated
November 2, 2026

Features

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About

CronMaster is a local-only cron toolkit for developers and ops. Write or paste an expression, read it in plain English, and see the next run times instantly — before you ship it to production. WHAT YOU GET • Multi-engine support: Linux crontab, Quartz, Spring @Scheduled, Kubernetes CronJob, AWS EventBridge, Jenkins, GitHub Actions • Natural-language description of any expression • Next / previous run previews with timezone control • Visual builder for 5-field engines • Template library (CI/CD, backups, reports, and more) • History, folders, notes, and Home Screen widget • Offline — no account, no cloud sync FREE • Linux editor, descriptions, next runs, 5 history items, read-only templates PRO (one-time unlock) • All engines + cross-engine conversion • Unlimited history, folders, notes & stars • Editable templates, batch check, import/export • Enhanced preview & text share pack Privacy-first: your expressions stay on your device. Privacy Policy: https://hairuizhi-cn.github.io/cronmaster-privacy/ Terms of Use: https://hairuizhi-cn.github.io/cronmaster-privacy/terms.html Questions? Contact us at 1095288658@qq.com
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What's New in CronMaster

1.0.3

November 2, 2026

• Fixed an issue that could prevent cron reminders from running beyond the first three scheduled times. • Improved notification permission handling and made reminder updates more reliable when editing, deleting, or importing schedules. • Significantly faster handling of impossible dates, including February 29, 30, and 31. • Improved backup reliability and purchase error handling.

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Subscriptions & In-App Purchases

$1.99

CronMaster Pro

Unlock all engines, builder & batch check

Developer apps