Runtime internals
Learn how V8, libuv, the event loop, and Node.js processes work together when your application runs.
NODEBOOKBACKEND ENGINEERING THROUGH NODE.JS
A serious Node.js book.Free to read online.
Learn how Node.js works, from the runtime and event loop to networking, data, security, production, and architecture. Every published chapter is available to read for free.
- No paywall
- No trial
- No card
OPEN ONLINE EDITIONVOLUME I
READ NOW
Every published chapter. Free.01 / WHAT IS NODE.JS?WHAT NODEBOOK TEACHES
Learn Node.js properly.From the runtime to production.
Each chapter explains how a part of Node.js works, why it behaves that way, and how to use it in real backend applications.
Buffers, streams, and files
Understand binary data, encodings, backpressure, file operations, and the correct way to process large amounts of data.
Networking and HTTP
Learn how TCP, DNS, TLS, HTTP, proxies, and realtime connections work in a Node.js application.
Production engineering
Learn how to debug, secure, measure, deploy, and maintain Node.js applications in production.
THE FREE ONLINE BOOK
Read the available chapters in order.
The curriculum is split into seven volumes. Volumes I and II are available online now, and every new chapter is added to the free reader when it is published.
FREE
Open the reader indexThe online book is free.Paid plans are optional. They add downloadable editions, hands-on labs, and interview practice.
IRuntime foundationsAvailable
IINetworked APIsAvailable
IIIWork and native codePlanned
IVData and statePlanned
VSecurityPlanned
VIProduction engineeringPlanned
VIIArchitecture and scalePlanned
CHOOSE HOW YOU WANT TO LEARN
Read for free.Pay only if you want the extras.
There are two paid plans. Pro adds downloadable editions and hands-on labs. Raw Mode includes Pro and adds interview practice and the backend framework project.
01 / READFREE ONLINE
The NodeBook
Read every published chapter in the browser and follow the complete seven-volume curriculum.
- Full online chapters
- Reader index and curriculum
- New published chapters
02 / READ + BUILDOPTIONAL
NodeBook Pro
Download the book as an EPUB or PDF and work through the full collection of Node Runtime Labs.
- EPUB plus light and dark PDFs
- Every Node Runtime Lab
- Future Pro releases
03 / INTERVIEW PRACTICEINCLUDES PRO
NodeBook Raw Mode
Get everything in Pro, plus interview questions, debugging and system design exercises, and the backend framework project.
- Everything in NodeBook Pro
- 100 interview questions with follow-ups
- 23-chapter framework project
You never need to buy both. Raw Mode already includes NodeBook Pro. The online book remains free either way.
Compare the two plansNODEBOOK PRO / BOOK + LABS
Use the labs to build what you learned.
Each lab guides you through a practical Node.js project in clear phases, with checkpoints, debugging notes, and expected results.
01Node Runtime Flight Recorder15 phases
02Binary File Store14 phases
03Stream Processing Workbench14 phases
RAW MODE
Prepare for the questions that come next.
Raw Mode helps you prepare for senior Node.js interviews. It covers follow-up questions, debugging tasks, system design, and decisions you may need to explain during an interview.
- 100 interview questions with follow-ups
- Follow-up questions that go beyond memorized answers
- Exercises for debugging, system design, and working with AI tools
- A 23-chapter backend framework project
WRITTEN BYIshtmeet Singh
READ NODEBOOK ONLINE
Start reading for free.The first chapter is ready.
Begin with the free online book. No account, no trial, and no card.