VibeGear
Inspectors

Cron expression decoder

Translate cron expressions to plain English + see the next 5 fire times.

Install for Chrome →All features

Tools → Inspect → Cron decoder · 7-day free trial · Premium $9.99 / yr

Try it now·runs locally · nothing uploaded
Cron expression
5 fields: minute · hour · day-of-month · month · day-of-week (Sun=0)
Description + next fires

minutes 0, 15, 30, 45 of every hour

Next 5 fires (local time)
  • 4/26/2026, 11:45:00 AM
  • 4/26/2026, 12:00:00 PM
  • 4/26/2026, 12:15:00 PM
  • 4/26/2026, 12:30:00 PM
  • 4/26/2026, 12:45:00 PM
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★ Flagship

Playground

↗

JS / TS scratchpad — sandboxed and instrumented.

Paste real code, hit Run. Console + network monitor + watch expressions all in one panel.

  • ·Real ES modules · top-level await
  • ·URL imports — esm.sh & friends
  • ·Live fetch monitor (every call)
  • ·Watch expressions in your scope
  • ·10s sandbox timeout · zero CORS pain

HTTP client

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Postman-style request runner.

Save collections, share variables, hit any API. Includes GraphQL with introspection, OpenAPI / cURL import.

  • ·Bearer / Basic / API-key auth
  • ·GraphQL · introspection
  • ·OpenAPI 3.x · cURL import
  • ·Copy as fetch / axios / Python

Realtime (WS + SSE)

↗

Stream-protocol tester — what Postman doesn’t do well.

WebSocket + Server-Sent Events with custom auth headers, auto-reconnect, JSON pretty-print.

  • ·wss:// + ws:// + subprotocols
  • ·SSE via fetch — Authorization works
  • ·Auto-reconnect with backoff
  • ·Send composer · ⌘ + Enter

What it does

Cron expressions look like */15 * * * * — five space-separated fields that describe a schedule. Decoding what they actually mean by hand is error-prone, especially for the more exotic ones.

The decoder turns any expression into a plain-English description and lists the next 5 fire times. Verify before you commit a broken schedule.

Why use VibeGear's cron expression decoder

How to use it

  1. 1Tools → Inspect → Cron decoder.
  2. 2Paste your cron expression.
  3. 3Read the description and next-fire times.

Example

Cron
0 9 * * 1-5
Plain English
At 09:00 on Monday through Friday

Frequently asked

Is the @yearly / @hourly aliases supported?

Not yet — those would be easy to add if there’s demand.

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Date / time converter

Parse any date in any format. See it in every other format.

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One install. Every tool above.

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