A cron parser/generator with support for multiple dialects such as Quartz or Jenkins.

Trigger functions and/or evaluate cron expressions in JavaScript. No dependencies. Most features. All environments.

Zero-dependency 5-field cron parser: ranges/steps/lists/names, precise validation errors, nextRun/nextN with a bounded UTC search, and describe() for human-readable schedule sentences.

Cron parser WASM library

A JavaScript parser

the mighty option parser used by yargs

Range header field string parser

Cron string converter

An ESLint custom parser which leverages TypeScript ESTree

Convert cron expressions into human readable descriptions

Cron model for skutil framework based on cron and cron-parser.

schedule plugin for egg, support corn job.

Validate XML, Parse XML, Build XML without C/C++ based libraries

Zero-dependency, multi-dialect cron parser: Unix 5-field, Quartz 6/7-field, and AWS EventBridge — with the field-count and day-of-week (0/7=Sun vs 1=Sun) and ? no-specific-value differences parsed correctly instead of silently mis-read.

An inline style parser.

Algorithms to help you parse CSS from an array of tokens.

Validates cron expressions

Parse CSS color values

Detect Browser, Engine, OS, CPU, and Device type/model from User-Agent & Client Hints data. Supports browser & node.js environment

Cron expression parser node for n8n workflows with timezone support and next run time calculation