charmbracelet/harmonica
A simple, physics-based animation library 🎼 observed · 2026-08-28
Health v2 · maintenance only
66/100
- Activity 97
- Release rhythm 8
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 1882
- days_rel: n/a
- days_push: 20
- n_releases_24m: 0
Adoption not part of the score
1603 stars · 42 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Harmonica is a small, physics-based spring animation library for Go. It provides smooth, natural motion for 2D/3D contexts, game engines, and terminal UIs via a simple NewSpring/Update API.
Use cases
- animate sprites with spring physics in a Go game
- add smooth motion to terminal UI animations
- implement natural easing for UI elements in Go
- animate camera or object positions in 2D/3D
- create bouncy, springy transitions in a Go application
When to choose
- you need physics-based spring animation in Go
- you want a tiny, framework-agnostic animation library
- you're building games or TUIs with Charm libraries and want natural motion
When to avoid
- you need keyframe or timeline-based animation systems
- you're not working in Go
- you need CSS/DOM animation for the web
Facets
library · maturity stable
animation graphics web-development go cross-platform spring-animation physics-based tui game-development
1 source
- readme: https://github.com/charmbracelet/harmonica · fetched 2026-08-28 · fbaef76e9bed
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| charmbracelet/harmonica | main | 66 |
For agents
markdown · JSON · MCP: product_card(name="charmbracelet/harmonica")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem