webcomponents/custom-elements-everywhere resource
Custom Element + Framework Interoperability Tests. observed · 2026-08-28
Health v2 · maintenance only
76/100
- Activity 98
- Release rhythm 35
- Longevity 100
Flags: no_releases no_license
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: 3303
- days_rel: n/a
- days_push: 16
- n_releases_24m: 0
Adoption not part of the score
1256 stars · 108 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
A project that runs Karma test suites against major JavaScript frameworks to evaluate how well they interoperate with Custom Elements (Web Components). Results are published as a comparison website with per-framework scores and notes on data and event handling.
Use cases
- compare how frameworks handle custom elements
- check if react works with web components
- find framework interoperability issues with custom elements
- see which frameworks pass custom element tests
- decide which framework to use with web components
- learn how frameworks pass properties vs attributes to custom elements
When to choose
- evaluating framework compatibility with Web Components before adoption
- contributing to or tracking framework interop discussions
- looking for documented workarounds for custom element data/event handling
When to avoid
- you need a testing library for your own app rather than a comparison resource
- you need production tooling rather than reference test suites
Facets
learning-resource · maturity active
testing e2e-testing benchmarking developer-tools web-development frontend developer-tools testing browser web-components custom-elements framework-interop karma-tests compatibility-tests nodejs web-server
2 sources
- readme: https://github.com/webcomponents/custom-elements-everywhere · fetched 2026-08-28 · 3c638a09927e
- homepage: https://custom-elements-everywhere.com · fetched 2026-08-29 · 5e660f4ffd05
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| webcomponents/custom-elements-everywhere | main | 76 |
For agents
markdown · JSON · MCP: product_card(name="webcomponents/custom-elements-everywhere")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem