The Node.js intelligence platform

Runtime intelligence
for every Node.js
operation.

Solve performance and security issues fast with N|Solid — it provides the deepest, most valuable telemetry to actually resolve issues faster.

Start Free →Explore the platform Book a Demo

N|Solid captures runtime intelligence no other tool can — with near ZERO overhead.

N|Solid — diagram

12 processes · 4 applications

N|Solid IDEDeveloper

N|Solid

Null check missing on line 6 — fix suggested from production signal.

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N|Solid Runtime

OSS · augmented Node.js

CPU38%

Heap68%

Event loop lag142ms

Exporting to

N|Solid IDE

N|Solid Console

OpenTelemetry

Fleet viewConsole

Processes12

Alerts2

Avg CPU38%

Vulns3

user-service87%

payments-api61%

notifications12%

Fleet insight

CPU spike on user-service correlated with cache growth.

Open in Console

Trusted by Delta, Mastercard, NASA, Kaiser Permanente & more.

The Node.js platform used in mission-critical production.

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The N|Solid platform

One platform. 4 Layers. Every Node.js operation covered.

Each layer is purpose built to support Node teams across the SDLC.

OSS · MIT License

N|Solid Runtime

A drop-in Node.js replacement that captures deeper telemetry than any external agent — CPU, heap, event loop, and security — with zero code changes and zero overhead. Built by the Node Experts.

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Fleet management

N|Solid Console

Fleet-wide visibility into every Node.js process in production — performance, security, and diagnostics in one place. Includes N|Solid AI to surface root causes, not just alerts.

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IDE extension · Free tier

N|Solid IDE

Production signals and AI-guided fixes in VS Code. Catch errors, security risks, and performance regressions before they reach prod — without leaving your editor.

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Intelligence layer

N|Solid AI

Runtime-grounded AI that detects anomalies, analyzes heap snapshots and CPU profiles, and surfaces validated fixes — not guesses. The intelligence layer powering every N|Solid product.

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Why N|Solid

Built from the inside out.

Most observability tools are bolted to the outside of your application. N|Solid starts from inside the runtime — and that changes everything.

Runtime-native telemetry

N|Solid Runtime captures telemetry from inside the Node.js process itself — not from SDK wrappers, not from log parsing, not from sidecars. Event loop, GC, heap allocation, CPU profiling, and security data are available with zero code changes and zero performance overhead. Built by NodeSource engineers who contribute to Node.js core, the signal is more authoritative because the source is closer to the truth.

Security built into the runtime

N|Solid monitors every package running in your production fleet in real time — not just at build time. CVEs, supply chain compromises, and license violations are detected the moment they appear, and surfaced directly to developers via N|Solid IDE or to ops teams via N|Solid Console. Security isn’t a scan you schedule — it’s a signal that never stops running.

Dynamic tracing and runtime context in the editor

The only IDE-native runtime observability

No other observability vendor has built native presence in AI IDEs. N|Solid IDE is the first product to bring live production telemetry directly into Cursor, Windsurf, and VS Code — eliminating the context switch that has defined DevOps incident response for a decade.

OpenTelemetry native

N|Solid exports everything via OpenTelemetry. Your Datadog, Grafana, or New Relic stack gets richer data, not a replacement. N|Solid enhances whatever observability infrastructure you’ve already built — it doesn’t ask you to start over. And it adds the IDE and AI surfaces that no OTel-compatible tool offers.

AI grounded in runtime evidence

N|Solid AI doesn’t analyze your code in isolation — it analyzes your code in the context of real production behavior. Heap snapshots. CPU profiles. Distributed traces. GC data. Every AI-generated recommendation comes with an evidence chain you can inspect, not a confidence percentage you have to take on faith.

Enterprise-grade, production-proven

N|Solid is trusted in production by Delta, Mastercard, Kaiser Permanente, NASA, and Home Depot. It is available as SaaS or on-premise, supports SSO and org-wide policy controls, and is backed by 24/7/365 SLA-guaranteed support for enterprise customers. The free tier is real — and so is the enterprise pedigree.

10+Years in Node.js core
NodeSource engineers contribute directly to the Node.js project — not just build on top of it.
2M+Runtime downloads (TTM)
The MIT-licensed N|Solid Runtime has been downloaded over two million times.
$0To get started
Try N|Solid for free and start seeing ALL the data.

Trusted in production by

Delta
Mastercard
Kaiser Permanente
Home Depot
NASA
NewsCorp

Who uses N|Solid

A platform that works for every layer of the org.

From individual developers to enterprise CTO — each role gets a surface designed for how they work.

Developers

Fix production issues without leaving the editor

Live error frequencies, latency data, and N|Solid AI-guided fixes appear directly in Cursor, Windsurf, or VS Code. No dashboard. No ticket. No context switch.

Platform engineers

Scale operational capability without scaling the team

Set policy and guardrails in N|Solid Console. Push runtime intelligence to every developer’s IDE automatically. Standardize observability without managing individual dashboards.

DevOps & SRE

Resolve incidents with evidence, not guesswork

Fleet-wide anomaly detection, automated root cause analysis, and N|Solid AI-generated remediations replace the screenshot-in-Slack workflow and cut MTTR dramatically.

Engineering leaders

Deliver faster without sacrificing reliability

Runtime-grounded guardrails for AI-generated code. Fleet-wide performance and security visibility. A developer experience that removes friction from the path between writing code and operating it safely.

What our customers say

Mission-critical Node.js runs on N|Solid.

N|Solid is a tremendously efficient and secure runtime. After only a few weeks, it helped us troubleshoot a nasty memory leak that had evaded our entire team for months.
— Mastercard

At NASA, mission-critical code is the rule, not the exception. N|Solid, along with the support of NodeSource, is proving invaluable — allowing us to scale rapidly while staying focused on our core mission.
— NASA

NewsCorp knows news. NodeSource knows Node. The visibility we get across our entire publishing infrastructure is unlike anything we had before — and it didn’t require a single instrumentation change.
— NewsCorp Group

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