Human-Friendly Cron Builder
Build, explain and preview five-field cron expressions locally, then export the displayed runs as UTC calendar events with time-zone and daylight-saving warnings.
The problem it solves
Human-Friendly Cron Builder Human-Friendly Cron Builder is a dependency-free offline web application for constructing and checking standard five-field cron expressions. It validates ranges, lists, steps, month and weekday names, explains each field with clearer weekday wording, and previews upcoming runs in an IANA time zone.
Who Human-Friendly Cron Builder is for
- Developers and maintainers who need reviewable evidence before changing or releasing software.
- Users working with cron, scheduling, time zones who want the documented v1.1.0 behavior.
- People who prefer an open-source release with visible limitations, source, and license terms.
Intended result
Build, explain and preview five-field cron expressions locally, then export the displayed runs as UTC calendar events with time-zone and daylight-saving warnings.
This summary is reconciled from the current catalog and repository documentation.
Features in v1.1.0
Capabilities below come from the current project README and release documentation.
Human-Friendly Cron Builder is a dependency-free offline web application for constructing and checking standard five-field cron expressions. It validates ranges, lists, steps, month and weekday names, explains each field with clearer weekday wording, and previews upcoming runs in an IANA time zone.
Use the live application or download the ZIP from the v1.1.0 release.
Verified examples
Screenshots are shown only when the current README references a local source image. Otherwise, repository example files are linked directly.
Verified release evidence
This project does not currently publish a screenshot or dedicated example folder. The current README, tests, changelog, tagged release, and source repository remain the verified examples of its behavior.
Platforms and implementation
The public release claims only the cataloged platforms and technologies.
Supported platforms
- Web
Built with
- JavaScript
- HTML
- CSS
Changelog
Release notes from the canonical v1.1.0 source tag.
- Download the displayed preview as a local ICS calendar, with deterministic event identities and UTC instants across daylight-saving transitions.
- Escape and fold calendar text; block exports when the preview is invalid or stale.
- Correct preview date formatting so time-zone labels render in browsers that reject combining date styles with timeZoneName.
- Corrected multi-value weekday explanations from “day of weeks” to “days of week”.
- Added regression coverage for the corrected explanation text without changing cron parsing or scheduling semantics.
- Parse and explain standard five-field cron expressions offline.
- Preview runs in validated IANA time zones with Vixie day-field semantics.
- Provide an accessible static application, presets, copying, and explicit dialect warnings.
Quick start
The shortest documented path into the current release.
- Enter a five-field expression such as “0 9 * * MON-FRI”.
- Enter an IANA time zone such as “America/New_York”.
- Read the field explanation and inspect the next eight runs.
- Optionally download the displayed eight runs as a local ICS calendar. It contains UTC events, not a recurring rule or a scheduler connection. Repeated daylight-saving wall times remain separate instants. Re-exporting the same expression, zone and instant retains its UID. Event DTSTAMP records when that preview was created.
- Copy the expression and confirm it in the scheduler that will execute it.
Everything runs inside the browser. There are no accounts, analytics, storage, cookies, or network requests.
Current limitations
These boundaries are part of the product and prevent the page from implying unverified capability.
The current v1.1.0 release is bounded by the behavior documented in its README and changelog. It does not claim unsupported platforms, automatic interpretation, or results beyond the evidence it produces.
Privacy and licensing
Review the actual data boundary before using a tool with sensitive inputs.
Privacy and safety
No privacy behavior beyond the current repository documentation is claimed. Review the source, security policy, and input/output behavior before using sensitive material.
License and release
Human-Friendly Cron Builder is published under MIT. The current cataloged release is v1.1.0, published 2026-10-15.
Related projects
Related projects are selected deterministically from shared catalog tags, category, and implementation technologies—not popularity or paid placement.
Human-Friendly Cron Builder v1.1.0
Use the tagged release for downloads and release notes. Use the repository for source, issues, contribution guidance, security reporting, and complete documentation.
Page source: current Forge catalog plus README and CHANGELOG from the canonical GitHub release tag. Fingerprint: 84a13e5a01434526.