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wtf is page.js?

yyx990803/page.js — explained in plain English

Analysis updated 2026-07-17 · repo last pushed 2015-04-30

★ 3JavaScriptAudience · developerComplexity · 2/5Dormant

TL;DR

A tiny client-side router for single-page apps that swaps content on link clicks or URL changes without full page reloads.

Mindmap

mindmap
  root((repo))
    What it does
      Client side routing
      No full page reload
      Matches URLs to routes
      Works with browser back button
    Tech stack
      JavaScript
      Express style API
    Use cases
      Build dashboards
      Build project tools
      Photo galleries
      Smooth page transitions
    Audience
      Frontend developers
      Express familiar devs
    Features
      Chainable route handlers
      URL parameters
      Few kilobytes in size

Code map

Detail Auto

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filefunction / class

Why would anyone build with this?

REASON 1

Add smooth, reload-free page transitions to a dashboard or project management tool.

REASON 2

Define URL routes like /user/john and read the username parameter inside a route handler.

REASON 3

Chain multiple functions on one route, such as loading user data before rendering a profile page.

REASON 4

Build a lightweight single-page app without pulling in a heavy framework.

What's in the stack?

JavaScript

How it stacks up

yyx990803/page.jsamarjitjim/browserpilotandershaig/cssess
Stars333
LanguageJavaScriptJavaScriptJavaScript
Last pushed2015-04-30—2011-08-19
MaintenanceDormant—Dormant
Setup difficulty—moderateeasy
Complexity2/53/51/5
Audiencedeveloperdeveloperdeveloper

Figures from each repo's GitHub metadata at analysis time.

Yoink these prompts

Prompt 1
Show me how to set up basic client-side routes with page.js for a simple single-page app.
Prompt 2
Help me write a page.js route that extracts a username from a URL like /user/john.
Prompt 3
Explain how to chain multiple handler functions on a single page.js route to reuse logic.
Prompt 4
Compare page.js to a full framework router and tell me when the lightweight option makes sense.
Prompt 5
Write a page.js example that adds smooth transitions between two sections of a dashboard.

Frequently asked questions

wtf is page.js?

A tiny client-side router for single-page apps that swaps content on link clicks or URL changes without full page reloads.

What language is page.js written in?

Mainly JavaScript. The stack also includes JavaScript.

Is page.js actively maintained?

Dormant — no commits in 2+ years (last push 2015-04-30).

Who is page.js for?

Mainly developer.

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