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impress/impress.js

This system is a JavaScript-based presentation framework that enables the creation of interactive, non-linear slide decks with 2D and 3D spatial navigation. It provides a modular plugin architecture that supports features such as automatic slide advancement, media playback, presenter consoles, and touch/keyboard navigation. The core library manages state transitions and DOM updates, while the ecosystem includes various plugins for substeps, bookmarks, and UI toolbars.

49.9

Weak · 2 August 2026

18k

lines of production code

JavaScript

primary language

2

bus factor · 93 authors in all

3

measurements over time

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How it got here

2011–2017 · v2.0 plugin ecosystem and infrastructure

This period marks the release of impress.js version 2.0.0, which introduced a comprehensive plugin architecture allowing for modular features like navigation, autoplay, and presenter consoles. The project simultaneously overhauled its build system, testing infrastructure, and documentation to support this new extensible framework.

31 changes

2018–2023 · plugin ecosystem and 3D positioning

This period focused on expanding the framework's capabilities through new plugins for media control, fullscreen mode, and hotkey-based navigation, alongside enhanced test coverage. It also introduced a new example for 3D slide positioning using relative transforms, demonstrating advanced layout techniques.

5 changes

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About this page

  • The description of this project is derived from its own commit history, not from its README.
  • The score is its highest published measurement, taken on 2 August 2026 at a pinned commit. It is not a live figure and does not change until the project is measured again.
  • Measured at commit b44b9694b4 — the exact code this score is about.
  • Scored under rubric rubric-2026.08.18. Score the same commit under that rubric and you get the same number.
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