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A library is a collection of preprogrammed templates that implement a behavior when invoked. Libraries are well-defined and are designed for reuse throughout implementation. For example, a website may have multiple webpages that implement the same navigation bar or text-field, but none of these objects have relation to one another.

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ccxt

A cryptocurrency trading API with more than 100 exchanges in JavaScript / TypeScript / Python / C# / PHP / Go

  • Updated Mar 3, 2026
  • Python
curl

A command line tool and library for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, MQTTS, POP3, POP3S, RTMP, RTMPS, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET, TFTP, WS and WSS. libcurl offers a myriad of powerful features

  • Updated Mar 3, 2026
  • C

QuestPDF is a modern library for PDF document generation. Its fluent C# API lets you design complex layouts with clean, readable code. Create documents using a flexible, component-based approach.

  • Updated Mar 2, 2026
  • C#

:octocat: RAMAnimatedTabBarController is a Swift UI module library for adding animation to iOS tabbar items and icons. iOS library made by @Ramotion

  • Updated Jan 26, 2022
  • Swift