Cron Parser

* * * * *

Decoded.

min hour day month weekday
Meaning

Next 5 runs
    Common presets
    No upload
    Works offline
    No tracking

    Need cron tools in your workflow? The offline bundle includes batch parsing and validation. $99 once.

    Get Bundle →
    // How it works

    Three steps. Zero uploads.

    01
    Enter
    Type or paste a 5-field cron expression. Or click a preset.
    02
    Read
    fwip translates it to plain English instantly. All parsing happens in your browser.
    03
    Verify
    See the next 5 scheduled run times based on your local timezone.
    // Why this is different

    Your cron expressions stay on your machine.

    Most cron parsers send your expression to a server. fwip parses everything locally — your scheduling logic stays private.

    fwip works differently. The cron parser runs entirely in your browser. Your text is read from your device, processed on your CPU, and the result is saved back to your device. No server is involved. We literally cannot see your file.

    No server processing

    Everything runs on your device using WebAssembly. Your file never touches a network.

    No account required

    Drop a file. Get a result. No sign-up, no email, no password.

    No subscription

    Free in the browser. $99 once for the offline bundle. That's it. Forever.

    Works offline

    The desktop version works with no internet connection at all.

    // Questions

    Frequently asked.

    What cron format does this support?▾
    Standard 5-field cron: minute (0-59), hour (0-23), day of month (1-31), month (1-12), day of week (0-7, where 0 and 7 are Sunday). Supports ranges, steps, and lists.
    Are the next run times accurate?▾
    Yes. fwip calculates runs based on your local timezone using JavaScript Date. Times are displayed in your browser's locale format.
    Does this support 6-field or 7-field cron?▾
    Currently supports standard 5-field cron (used by crontab, most CI/CD systems, and task schedulers). Seconds and year fields are not supported.
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    • Batch processing
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