# googlearchive/flipjs

A helper library for doing FLIP animations.

Repository: https://github.com/googlearchive/flipjs
Canonical: https://ross.abutalabs.com/products/flipjs
Homepage: https://aerotwist.com/blog/flip-your-animations
Language: JavaScript
License: Apache-2.0
License Family: permissive
Archived: true
Last push: 2017-10-17T05:58:22+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3885, "days_push": 3242, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1412, forks 89 (observed 2026-08-28T04:04:39.059558+00:00)

## What it is
FLIP.js is a small JavaScript helper library implementing the FLIP (First, Last, Invert, Play) animation technique, which remaps expensive property animations like width and top to cheap transform-based ones. It was created by a Google Chrome developer and is now archived, with GSAP's FLIP Plugin suggested as a modern alternative.

## Use cases
- animate element position changes at 60fps
- smoothly transition layout changes like reordering lists
- animate width and height changes using transforms instead
- create shared-element style transitions between states
- integrate FLIP animations with GSAP playback and easing

## When to choose
- you need a tiny dependency-free helper for transform-based FLIP animations
- you want to learn or prototype the FLIP technique
- you already use GSAP and want optional integration for playback and easing

## When to avoid
- you need a maintained library with ongoing support
- you want modern Web Animations API or View Transitions API support
- you need framework integrations like React or Vue FLIP helpers
- you require advanced features beyond basic FLIP transitions

## Facets
- artifact type: library
- maturity: abandoned
- function: animation
- domain: frontend, web-development
- platform: browser
- tags: flip-technique, css-transforms, performance, gsap-integration, google-archive, nodejs

## Member repositories
- googlearchive/flipjs (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:39.059558+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 2026-08-30T04:38:20.480571+00:00, confidence not recorded.
  - readme: https://github.com/googlearchive/flipjs (fetched 2026-08-28T04:04:39.059558+00:00, sha e30a2d3e5301)
  - homepage: https://aerotwist.com/blog/flip-your-animations (fetched 2026-08-29T11:51:27.218340+00:00, sha b302e64a232e)
- Data as of 2026-08-30T08:39:29.467469+00:00.