InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now. Learn more →
Top 18 JavaScript C# Projects
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Bot Builder SDK
Bot Framework provides the most comprehensive experience for building conversation applications.
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Sevalla
Deploy and host your apps and databases, now with $50 credit! Sevalla is the PaaS you have been looking for! Advanced deployment pipelines, usage-based pricing, preview apps, templates, human support by developers, and much more!
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ganja.js
:triangular_ruler: Javascript Geometric Algebra Generator for Javascript, c++, c#, rust, python. (with operator overloading and algebraic literals) -
>web dev/gradle/java knowledge to build something like this
Web dev (and not just in java) is dominated by "component integration" concerns, containing lots of structure but little content. Computation is delegated to libraries, and the problems more about complexity of integration (at build time) scaled distributed systems (at runtime). In contrast, writing a simulation is computationally intensive, so most of the code is content. It's homogenous where web dev is heterogenous. The problems are entirely constrained by single process performance within a time budget determined by fps.
All that means is that you can focus on one runtime. I suggest the browser, since it solves the distribution problem. Ganja[1] is perhaps the ultimate "content, not structure" simulation project. It's very strange, and lies unmaintained because it's impenetrable. Yet it works. A bit more structured is D3 who's authors have written cutting edge visulation/layout algorithms for you, for example in support of force directed graphs[2]. A more friendly way to get started would be with some variant of Processing[3], which started as a Java thing and then got ported around, including to Python and JavaScript. A word of warning: something like cloth simulation is to a game engine what a single cell is to a mouse. Game engines are huge, in other words, and again you won't be writing simulations, lots of (internal) integrations.
1 - https://github.com/enkimute/ganja.js/blob/master/ganja.js
2 - https://github.com/d3/d3-force/tree/main/src
3 - https://processing.org/
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speakeasy
Build APIs your users love ❤️ with Speakeasy. ✨ Polished and type-safe SDKs. 🌐 Terraform providers and Contract Tests for your API. OpenAPI native. (by speakeasy-api)
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Project mention: Claude AI now runs JavaScript, Python beats JavaScript on GitHub, new Node.js versions and more | dev.to | 2024-11-03
Yantra
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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Programming-Language-Tutorials
📝 A comprehensive collection of web development tutorials covering AJAX, Angular, C#, CSS, HTML, JavaScript, Node.js, PHP, PUG, SASS, TypeScript, and React. These resources include practical examples on API communications, HTTP methods, accessibility, local storage, and more. This repository serves as a valuable reference for fellow developers.
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Marionette
An all-purpose RPA library created for Windows, based on FlaUi and Playwright. (by ALaurian)
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blazor-barcode-mrz-document-scanner
Scan barcode, document and MRZ with Dynamsoft Capture Vision SDKs and Blazor
Project mention: How to Digitize Documents in a Blazor Web App Using TWAIN, WIA, SANE, ICA, and eSCL Scanners | dev.to | 2024-09-24 -
OCR library: ocr-lib.js provides a unified API to run free OCR engines like Tesseract.js or OCR.space API and output searchable PDFs.
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SearchStory
Lucene based search application to search your own history (notes, papers, browser history)
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XO
An e-commerce web application built using SQL Server, EF, ASP. NET Core MVC, C#, Javascript and an assortment of other libraries and web services. (by rperez-rosario)
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DataStructure
I will build the logic, code and then debug the coding problems in my youtube series of #LogicCodeDebug. So, this is going to be a step by step solution of coding problems. I believe, everyone has it's own way of learning. For few problems, it's easy to understand by just seeing the Logic but for few we need to debug them.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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).
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A note from our sponsor - InfluxDB
www.influxdata.com | 1 Sep 2025
Index
What are some of the best open-source C# projects in JavaScript? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | Bot Builder SDK | 7,768 |
| 2 | ganja.js | 1,558 |
| 3 | unity-webxr-export | 1,165 |
| 4 | cordova-cli | 954 |
| 5 | speakeasy | 323 |
| 6 | YantraJS | 250 |
| 7 | cordova-node-xcode | 203 |
| 8 | Oxylabs | 64 |
| 9 | PeerMeeting | 15 |
| 10 | Programming-Language-Tutorials | 9 |
| 11 | Marionette | 8 |
| 12 | blazor-barcode-mrz-document-scanner | 8 |
| 13 | web-twain-document-scan-management | 3 |
| 14 | SearchStory | 2 |
| 15 | XO | 2 |
| 16 | sweetalert-samples | 1 |
| 17 | DataStructure | 0 |
| 18 | web-samples | 0 |
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