Frontend Frameworks

Edge.js

Run .NET and Node.js code in the same process across multiple platforms.

Status
Generally available
Last checked
Checked · Oct 16, 2026
License
Open source
Pricing
Free tier · from $0
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What it is

Edge.js enables developers to run .NET and Node.js code within a single process, facilitating seamless integration between these two environments on Windows, macOS, and Linux. This tool is particularly useful for projects requiring both JavaScript and .NET capabilities.

Edge.js stands out by offering a unique solution for integrating .NET and Node.js within a single process, making it ideal for developers who need to leverage both ecosystems without the complexity of separate processes.

When it fits — and when it doesn’t

A good fit for

  • Developers working on projects that require the use of both .NET and JavaScript environments within a single application.

  • Teams looking to integrate legacy .NET code with modern web applications built using Node.js.

  • Hybrid application developers who need to leverage specific functionalities from both .NET and Node.js.

Look elsewhere if

  • Projects that require real-time streaming capabilities as Edge.js focuses on process integration rather than real-time data processing.

  • Applications where the overhead of running two environments in a single process is not acceptable due to performance constraints.

Known weaknesses

Each one links to the public issue, changelog or docs page it came from, where we have one.

  1. 01

    Complex setup and configuration

    Setting up Edge.js requires careful management of both Node.js and .NET environments, which can be error-prone for developers unfamiliar with both ecosystems.

  2. 02

    Performance overhead due to interop

    The interaction between Node.js and .NET within a single process introduces additional overhead that may impact the performance of applications, especially under heavy load.

  3. 03

    Limited community support and documentation

    Edge.js has a relatively small user base which can lead to limited third-party resources and slower resolution of issues through community channels.

What it does well

  • Seamless integration of .NET and Node.js in a single process.

  • Cross-platform support for Windows, macOS, and Linux.

  • Facilitates the use of .NET libraries within Node.js applications.

Pricing

Free tier
YesOpen source — free to use
Paid from
$0
Model
Flat rate
Enterprise plan
No

Pricing not independently confirmed — check the vendor’s page.

Performance benchmarks

How Fast Is It?

Set up Edge.js

Setup steps, common gotchas and what to check after 30 days.

Open the setup guide →
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