Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
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Day.js
A 2KB immutable JavaScript date-time library with a Moment.js-compatible API
python-dateutil
Powerful extensions to Python's datetime module for parsing, deltas, recurrence, and timezones.
Luxon
Immutable, chainable date and time handling for JavaScript with built-in time zones and Intl.
pytz
World timezone definitions for Python, powered by the IANA (Olson) tz database.
orjson
A fast, correct, Rust-backed JSON library for Python with native dataclass, datetime, and numpy support
croniter
Parses cron schedule strings and iterates the matching datetime values, with DST, second/year fields, and last-weekday support.
chartjs-adapter-date-fns
Lets Chart.js parse, format, and calculate time-scale dates using date-fns instead of its default date engine.
flatpickr
A lightweight, dependency-free JavaScript datetime picker with themes, locales, and plugins
Laravel Debugbar
An in-browser debugging and profiling toolbar that integrates PHP Debug Bar with Laravel.
pendulum
A drop-in replacement for Python's datetime with timezone-aware objects by default and a friendlier API.
timeago.js
Nano library for formatting dates as relative '3 hours ago' statements
Carbon
A simple, fluent PHP API extension for DateTime with translations for 280+ languages.
React Native DateTimePicker
Native date and time picker component for iOS, Android, and Windows in React Native.
react-date-range
A drag-to-select date and date-range picker for React, built on date-fns.
ormsgpack
A fast Rust-backed MessagePack library for Python with native dataclass, datetime, numpy, and Pydantic support.