openkraken/kraken
A web standards-compliant, high-performance rendering engine based on Flutter. observed · 2026-08-28
Health v2 · maintenance only
23/100
- Activity 0
- Release rhythm 8
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 2098
- days_rel: n/a
- days_push: 1342
- n_releases_24m: 0
Adoption not part of the score
4927 stars · 305 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
Kraken is a high-performance rendering engine built on Flutter that supports web standards (HTML/CSS/JavaScript), letting web-style code run natively on mobile and desktop. It integrates as a Flutter widget and is driven by JavaScript bundles.
Use cases
- render web-like UIs natively inside a Flutter app
- build cross-platform apps with HTML/CSS/JS without a WebView
- achieve native-like scrolling and animation performance for hybrid pages
- run dynamic JS-driven UI bundles on iOS and Android
- reuse existing web frontend skills for mobile development
When to choose
- you want web-standard HTML/CSS/JS rendering embedded in Flutter with native performance
- you need dynamic, remotely-updatable UI bundles in a mobile or desktop app
- your team knows web frontend but targets native mobile platforms
When to avoid
- your project uses Flutter 3.x or later - use the maintained fork WebF instead
- you need a fully standard browser environment or broad web compatibility
- you need a project with active recent releases and ongoing support
Facets
framework · maturity maintenance
web-framework frontend-framework graphics mobile-framework desktop-framework web-development frontend mobile-development cross-platform windows flutter rendering-engine web-standards html css javascript cross-platform hybrid-app ios android macos linux web
2 sources
- readme: https://github.com/openkraken/kraken · fetched 2026-08-28 · f40eaa702c61
- homepage: https://openkraken.com · fetched 2026-08-29 · 44136fa355b3
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| openkraken/kraken | main | 23 |
For agents
markdown · JSON · MCP: product_card(name="openkraken/kraken")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem