# IFTTT/JazzHands

A simple keyframe-based animation framework for UIKit. Perfect for scrolling app intros.

Repository: https://github.com/IFTTT/JazzHands
Canonical: https://ross.abutalabs.com/products/jazzhands
Homepage: http://ifttt.github.io
Language: Objective-C
License: MIT
License Family: permissive
Last push: 2024-07-30T13:01:27+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4721, "days_push": 764, "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 6361, forks 660 (observed 2026-08-28T04:09:42.846687+00:00)

## What it is
Jazz Hands is a simple keyframe-based animation framework for UIKit, written in Objective-C. Animations can be driven by gestures, scroll views, KVO, or ReactiveCocoa, making it ideal for scrolling app intros.

## Use cases
- create scrolling app intro animations
- animate views tied to scroll view position
- fade, move, scale, and transform views with keyframes
- drive animations from gestures or KVO
- build animated onboarding screens for iOS

## When to choose
- building an Objective-C iOS app with scroll-driven intro animations
- you want simple keyframe-based UIKit animation control
- you need animations synced to UIScrollView content offsets

## When to avoid
- your project is in Swift (use IFTTT's RazzleDazzle instead)
- you need time-based autonomous animations rather than input-driven ones
- you target platforms other than iOS/UIKit

## Facets
- artifact type: library
- maturity: maintenance
- function: animation, ui-components
- domain: mobile-development, frontend
- platform: -
- tags: uikit, keyframe-animation, objective-c, scroll-animations, app-intro, ios, swift, mobile

## Member repositories
- IFTTT/JazzHands (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:42.846687+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 2026-08-29T17:46:04.847665+00:00, confidence not recorded.
  - readme: https://github.com/IFTTT/JazzHands (fetched 2026-08-28T04:09:42.846687+00:00, sha 61db9a1f3b89)
  - homepage: http://ifttt.github.io (fetched 2026-08-29T08:42:12.747332+00:00, sha b8de95f95b58)
- Data as of 2026-08-30T08:39:29.467469+00:00.