SaaSHub helps you find the best software and product alternatives Learn more →
Top 23 Library Open-Source Projects
-
-
SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
-
Project mention: strace-ui, Bonsai_term, and the TUI renaissance | news.ycombinator.com | 2026-06-02
My take is that GUI frameworks/APIs have abandoned power users.
Yes, there are thing like https://github.com/ocornut/imgui, and some (especially open source) applications try and muddle a long with Qt or GTK, but many (most?) serious professional or power user applications have built their own GUI frameworks or at least custom controls to deal with this.
Whatever route you take, as a dev it's painful, especially for someone who remembers adding a couple of libraries to a Delphi project back in the Office 2000s era and getting full docking, configurable toolbars, etc. with little to no work.
So the easy fallback (especially with the recent proliferation of libraries) is TUI and CLI applications with the layout/docking and tabs provided by the terminal emulator itself or one of tmux/zellij/etc.
I've been thinking on and off for a few years now about the idea of a "graphical terminal", sitting somewhere between a GUI toolkit and a terminal emulator and a full blown OS for building inter-composable apps and tools and components that could replace TUI based workflows/apps/layouts. I have a vision of every "pro" app just being a different curation and configuration of underlying components rather than actually separate software.
-
ccxt
A cryptocurrency trading API with more than 100 exchanges in JavaScript / TypeScript / Python / C# / PHP / Go / Java
But to get fresh quotes, the bot polls the exchange's orderbook (via the wonderful but occasionally-temperamental ccxt library). And those polls were timing out — silently, in batches. Five-minute window: 215 orderbook timeouts. Same five-minute window: zero successful quote refreshes.
-
libcurl
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, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET, TFTP, WS and WSS. libcurl offers a myriad of powerful features
bagder merged a fix to curl in response to my report: https://github.com/curl/curl/commit/b079595f2e903b820a027a68...
Sorry for not believing you initially! I'm very surprised that was in there
-
HeroUI provides accessible, pre-built components that work well with Tailwind CSS. So far, I think this is one of the best UI libraries so make sure you check it out.
-
Mojs - Screen density independent effects look good on any device
-
Framework7 is a hybrid mobile app framework focused on creating iOS and Android apps with a native look and feel. It is especially suitable for Progressive Web Apps (PWAs) and smaller projects. Framework7 comes with a comprehensive set of UI components that match each platform’s design guidelines, allowing developers to quickly build visually appealing applications with minimal configuration.
-
Project mention: NASA Built Artemis II's Fault-Tolerant Computer | news.ycombinator.com | 2026-04-10
>what is my point? well, i think a web stack ran under an RTOS (and sized appropriately) might be a much more pleasurable experience. Get rid of all those lags, and intermittent hangs and calls for more GB of memory.
... it's not the OS that's source of majority of lag
Click around in this demo https://tracy.nereid.pl/
-
-
webview
Tiny cross-platform webview library for C/C++. Uses WebKit (GTK/Cocoa) and Edge WebView2 (Windows).
"a thin wrapper over the system webview"
That is very complicated if you take into account also Linux, Windows, iOS, Android support and related utilities like tray icon, etc. There are other efforts, too, but they are also wrappers. Like this C/C++ implementation https://github.com/webview/webview that targets only desktop operating systems.
-
QuestPDF
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.
Project mention: 7 Document Processing Tasks Every .NET Developer Should Automate | dev.to | 2026-05-20The following example uses QuestPDF to generate a simple invoice PDF:
-
-
-
The BLoC (Business Logic Component) pattern is where serious teams land. Google's own Flutter team uses it internally. Nubank, one of the world's largest digital banks with 90 million customers, built its app on it. BMW runs it in production. The flutter_bloc package has logged over 1.4 million downloads on pub.dev. That's not hype. That's validation at scale.
-
animated-tab-bar
:octocat: RAMAnimatedTabBarController is a Swift UI module library for adding animation to iOS tabbar items and icons. iOS library made by @Ramotion
-
-
-
-
libgit2
A cross-platform, linkable library implementation of Git that you can use in your application.
The biggest challenge for me was setting up the repo I forked. The person I was working with actually used libgit2, which is very impressive but also meant I needed to install some extra dependencies. I had never worked with libgit2 before, so I was stuck for a while trying to get everything to build. Luckily, the repo owner was kind enough to guide me through this process and explain how he had configured his environment.
-
-
Project mention: Ask HN: Why is Claude so horrible? Are they paying people to glaze it on X? | news.ycombinator.com | 2026-02-13
-
koin
Koin - a pragmatic lightweight dependency injection framework for Kotlin & Kotlin Multiplatform
Project mention: Part 5: Wire Everything with Koin - Ktor Native Worker Tutorial | dev.to | 2025-12-21Koin is a lightweight dependency injection framework for Kotlin that:
-
Project mention: React Native ile Endüstriyel Barkod Okuma: Ters Renk Data Matrix Kodları ve Zebra DataWedge Entegrasyonu | dev.to | 2025-12-19
React Native Vision Camera
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Library discussion
Library related posts
-
Docker, Node, and Electron Walked Into My Terminal. So I Built a 3.5MB App to Kick Them All Out.
-
Ask HN: Who wants to be hired? (June 2026)
-
Libexpat Is Understaffed
-
How to get a Telegram chat_id in 2026 — 3 methods that actually work
-
Show HN: Markanywhere – A Streaming Processor of Meanings
-
A New Way to Build UIs with TargetJS
-
Ask HN: Who wants to be hired? (May 2026)
-
A note from our sponsor - SaaSHub
www.saashub.com | 7 Jun 2026
Index
What are some of the best open-source Library projects? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | React | 245,632 |
| 2 | imgui | 73,701 |
| 3 | ccxt | 42,823 |
| 4 | libcurl | 42,065 |
| 5 | heroui | 29,551 |
| 6 | Mo.js | 18,702 |
| 7 | framework7 | 18,668 |
| 8 | tracy | 16,101 |
| 9 | badger | 15,645 |
| 10 | webview | 14,096 |
| 11 | QuestPDF | 14,064 |
| 12 | FreeRDP | 13,247 |
| 13 | barba | 12,934 |
| 14 | bloc | 12,449 |
| 15 | animated-tab-bar | 11,102 |
| 16 | Apache Thrift | 10,927 |
| 17 | cdnjs | 10,707 |
| 18 | FSCalendar | 10,659 |
| 19 | libgit2 | 10,478 |
| 20 | folding-cell | 10,201 |
| 21 | icecream | 10,060 |
| 22 | koin | 9,982 |
| 23 | react-native-vision-camera | 9,440 |
Sponsored
SaaSHub - Software Alternatives and Reviews
SaaSHub helps you find the best software and product alternatives
www.saashub.com