# inspire-js/inspire.js

Lean, hackable, extensible slide deck framework. Previously known as CSSS.

Repository: https://github.com/inspire-js/inspire.js
Canonical: https://ross.abutalabs.com/products/inspirejs
Homepage: http://inspirejs.org/
Language: JavaScript
License: MIT
License Family: permissive
Topics: slideshow, presentation, slidedeck
Last push: 2026-06-10T17:03:54+00:00

## Health v2 (maintenance only)
Score: 62/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 86, release rhythm 8, longevity 100
- inputs: {"age_days": 5788, "days_push": 84, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1752, forks 250 (observed 2026-08-28T04:05:31.733692+00:00)

## What it is
Inspire.js is a lean, hackable, extensible slide deck framework for building HTML-based presentations, originally created by Lea Verou as CSSS. Slides are plain HTML elements styled with CSS themes, extended via autoloaded plugins, and controlled through a JavaScript API and keyboard navigation.

## Use cases
- create an HTML slide deck for a tech talk
- build a presentation with CSS-themed slides
- give conference talks with keyboard-navigable slides
- add incremental reveal of bullet points in slides
- reuse slides at multiple points in a deck
- present course material like a university lecture
- customize presentation behavior with a JavaScript API

## When to choose
- you want presentations as plain HTML/CSS with no build step
- you value a small, hackable framework you can extend with plugins
- you prefer web-standard technologies over proprietary slide tools
- you need features like slide overviews, deep linking, and repeated slides

## When to avoid
- you need WYSIWYG editing or offline desktop presentation software
- your team expects PowerPoint/Keynote-style workflows
- you need heavy built-in features like presenter notes syncing or video export out of the box

## Facets
- artifact type: framework
- maturity: active
- function: frontend-framework, ui-components, plugin-system
- domain: web-development, frontend, developer-tools, education
- platform: browser, cross-platform
- tags: slideshow, presentation, slidedeck, css-based, esm, hackable, web-server, nodejs

## Member repositories
- inspire-js/inspire.js (main) score 62

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:31.733692+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:28:27.394648+00:00, confidence not recorded.
  - readme: https://github.com/inspire-js/inspire.js (fetched 2026-08-28T04:05:31.733692+00:00, sha d1dbd1077a56)
  - homepage: http://inspirejs.org/ (fetched 2026-08-29T11:06:39.040618+00:00, sha 58f147a19451)
- Data as of 2026-08-30T08:39:29.467469+00:00.