explaingit

paularmstrong/normalizr

★ 20,839JavaScriptAudience · developerComplexity · 2/5DormantLicenseSetup · easy

TLDR

Flattens nested JSON data into a normalized structure based on a schema you define, making it easier to manage relational data in state management systems.

Mindmap

mindmap
  root((normalizr))
    What it does
      Flattens nested JSON
      Defines schemas
      Normalizes API responses
    Use cases
      Redux state management
      Flux applications
      API data handling
    Tech stack
      JavaScript
      State management
    Audience
      Frontend developers
      State management users

Things people build with this

USE CASE 1

Normalize deeply nested API responses before storing them in Redux or Flux state.

USE CASE 2

Define schemas to automatically flatten relational data structures for consistent updates.

USE CASE 3

Transform complex JSON objects into a flat, normalized format for easier state management.

Tech stack

JavaScript

Getting it running

Difficulty · easy Time to first run · 5min
MIT license allows free use for any purpose, including commercial, as long as you retain the copyright notice.

In plain English

Normalizr is a JavaScript library that takes nested JSON data, for example, an API response where objects contain other objects, and flattens it into a normalized structure according to a schema you define. This makes it easier to manage relational data in state management systems like Redux or Flux, where deeply nested structures can be difficult to update consistently. The README notes that Normalizr is no longer actively maintained due to the original author's inability to find a new maintainer, though the library itself is described as stable and has been used by thousands of projects without issue. Users who need additional features or find a bug are advised to fork the repository and maintain their own version.

Copy-paste prompts

Prompt 1
Show me how to use normalizr to flatten a nested API response with users and their posts into a normalized schema.
Prompt 2
How do I define a normalizr schema for an API that returns nested objects with relationships between entities?
Prompt 3
I have a Redux store with deeply nested data. How can normalizr help me structure and update it more easily?
Prompt 4
Write a normalizr schema definition for a social media API response containing users, comments, and likes.
Open on GitHub → Explain another repo

Generated 2026-05-18 · Model: sonnet-4-6 · Verify against the repo before relying on details.