Node.js developer tools

Bring production into development.

N|Solid Extension for your editor. N|Solid Plugin for your AI coding agent. Same runtime intelligence. Real production context.

Trusted by 2M+ developers in 150+ countries

N|Solid Extension

Debug production issues without leaving your editor.

The N|Solid Extension brings live runtime telemetry into VS Code, Cursor, Windsurf, and Antigravity — so you see errors, latency, and security signals on the code you're writing.

View Documentation

Works with

  • VS Code
  • Cursor
  • Windsurf
  • Antigravity

Live Runtime Intelligence

See response times, errors, and execution cost overlaid on the code that caused them.

Heap Snapshots & CPU Profiles

Capture profiles from production without leaving your editor or switching tools.

Package Security

Surface CVEs and supply-chain risk the moment an import lands in your codebase.

AI-Assisted Investigation

Go from alert to root cause with agentic diagnostics grounded in runtime evidence.

N|Solid Plugin

Give your AI agent real production context.

The N|Solid Plugin gives AI coding agents runtime skills and production evidence — so they investigate with heap, CPU, and security signal instead of guessing from code alone.

View on GitHub

Works with

  • Claude Code
  • Codex CLI
  • OpenCode
  • Pi Agent

Runtime Skills

Give agents structured skills for profiling, tracing, and runtime diagnostics.

Benchmarking

Run targeted function-level benchmarks so agents can verify before they propose a fix.

Security & Compliance

Feed package quality, CVE, and license signal into agent workflows automatically.

AI-Assisted Investigation

Ground agent recommendations in heap, CPU, and trace evidence — not guesswork.

Why teams trust it

Backed by a runtime 2M+ downloads deep.

N|Solid Devtools is not a thin IDE wrapper. Extension and Plugin sit on the same production-proven runtime intelligence layer that teams already run at scale.

  • 2M+Runtime downloads

    The MIT-licensed N|Solid Runtime is downloaded millions of times a year — the same layer behind the Extension and Plugin.

  • 150+Countries

    Used by developers worldwide to debug and ship Node.js in production environments that cannot afford guesswork.

  • 10+Years in Node.js core

    NodeSource engineers contribute to Node.js itself — so the telemetry comes from people who know the runtime from the inside.

What that means for you

  1. Evidence from inside the process

    Heap, CPU, event loop, and security data are captured in the Node.js process — not inferred from logs or sidecars — with near-zero overhead.

  2. Same truth in the editor and the agent

    The Extension and Plugin share one runtime source of truth. What you see while coding is what your AI agent investigates against.

  3. Security that runs with production

    CVEs and supply-chain risk are monitored in running processes and surfaced where fixes happen — not only in a scan you schedule later.

  4. Fits the stack you already run

    Open-source runtime core and OpenTelemetry export mean N|Solid adds editor and agent surfaces without replacing your existing observability.

Trusted in production by

  • Delta
  • Mastercard
  • Kaiser Permanente
  • Home Depot
  • NASA
  • NewsCorp

One runtime. Everywhere you build.

The N|Solid platform surfaces that matter for developers and agents.

OSS · MIT

N|Solid Runtime

Drop-in Node.js replacement with deeper telemetry and near-zero overhead.

Explore Runtime →
Ops · Fleet

N|Solid Console

Fleet visibility, alerts, and collaboration for production Node.js.

Explore Console →
Editors

N|Solid Extension

Production signal inside VS Code, Cursor, Windsurf, and compatible editors.

Install Extension →
Agents

N|Solid Plugin

Runtime skills and evidence for AI coding agents via npm or GitHub.

Install Plugin →

Get started

Get started in minutes.

For editors

N|Solid Extension

In your IDE

Install the extension in VS Code, Cursor, Windsurf, or Antigravity, then connect to N|Solid Runtime for live production context.

# In VS Code / Cursor / Windsurf / Antigravity
# Extensions → search "N|Solid"
# or open the marketplace listing

Works with

  • VS Code
  • Cursor
  • Windsurf
  • Antigravity
View Docs

For AI agents

N|Solid Plugin

In your agent

Add the plugin from npm or clone the GitHub repo to give agents runtime skills and production evidence.

npm i -g nsolid-plugin
# or: npm i nsolid-plugin

Works with

  • Claude Code
  • Codex CLI
  • OpenCode
  • Pi Agent
GitHub RepositoryView on npm →

Ready to bring production into development?

Install the extension for your editor, or give your AI agent the N|Solid plugin — same runtime intelligence, two surfaces.

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