explaingit

remix-run/history

★ 8,323JavaScriptAudience · developerComplexity · 2/5Setup · easy

TLDR

A small JavaScript library that manages browser navigation history with one consistent API across browsers, Node.js servers, and test environments, used internally by React Router v6.

Mindmap

mindmap
  root((history))
    What it does
      Navigation tracking
      URL management
      State persistence
    Tech Stack
      JavaScript
      TypeScript
    Use Cases
      Custom router
      SPA navigation
      Node.js testing
    Environments
      Browser
      Server
      Test runner
Click or tap to explore — scroll the page freely

Code map

Detail Auto

An interactive map of this repo's files and how they connect — its source is parsed live in your browser. Click Visualize to build it.

filefunction / class

Things people build with this

USE CASE 1

Build a custom router that tracks navigation history consistently across browser, server, and test environments.

USE CASE 2

Add programmatic forward and backward navigation with persistent state to a single-page app.

USE CASE 3

Test routing logic in a Node.js environment using the in-memory history implementation without a real browser.

Tech stack

JavaScriptTypeScript

Getting it running

Difficulty · easy Time to first run · 5min
No license information stated in the explanation, check the repository directly for terms.

In plain English

The history library is a small JavaScript utility for managing the browser session history stack. It handles the low-level work of tracking where a user has been, navigating forward and backward through those locations, and storing small pieces of state that survive page transitions. Rather than something end users interact with directly, it is a building block that routing tools sit on top of. The main problem it solves is that browsers, Node.js servers, and test environments all handle navigation history in different ways. A browser has a real address bar and a back button, a server does not. A test runner has neither. This library provides one consistent interface that works across all three contexts, so the code that manages navigation can be written once without worrying about which environment it is running in. Version 5 is the current stable release. It is the version that React Router version 6 uses internally, which is why this package has a large number of downloads even though most developers never install it directly. Version 4, which is documented on a separate branch of the repository, is what React Router versions 4 and 5 use. If you are using React Router, you are almost certainly using this library already. The README itself is short and mainly points to the docs folder for detailed API documentation. Development of version 5 happens on the main branch, which the team keeps stable enough that you can build from it directly between official releases if you need a fix that has not yet been published. The project is maintained by the Remix team, the same group behind the Remix web framework.

Copy-paste prompts

Prompt 1
Show me how to create a browser history instance with the history library and listen for location changes in a vanilla JavaScript app.
Prompt 2
How do I use createMemoryHistory from the history package to write unit tests for navigation logic in Node.js without a browser?
Prompt 3
Write a React component that uses the history library to navigate programmatically and preserve state between page transitions.
Prompt 4
Explain the difference between createBrowserHistory, createHashHistory, and createMemoryHistory in the history library and when to use each.
Open on GitHub → Explain another repo

← remix-run on gitmyhub — every repo by this author, as a profile.

Verify against the repo before relying on details.