K Framework
5.7#27 in formal verification toolsAPILinuxmacOSSelf-hosted
VisitK Framework vs Lean
What both publish
| Fact | K Framework | Lean |
|---|---|---|
| Support | The official site lists Discord as its most direct support channel and also links to a Matrix room. | The Lean Community Zulip is described as the central hub for questions and collaboration, and Lean FRO hosts weekly technical office hours. |
| Supported systems | The installation guide lists Ubuntu 22.04, macOS via Homebrew, and Docker images; it says native Windows is not supported and recommends WSL 2. | Tier 1 platforms include Linux, Apple Silicon macOS, and x86-64 Windows; x86-64 macOS and Emscripten WebAssembly are Tier 2. |
K Framework plans
No prices published.
Lean plans
- Lean 4Free
Pick K Framework if…
You want what its maker publishes above — check its page for the details.
Pick Lean if…
Lean suits programmers, theorem provers, and mathematicians working with formalization, proof checking, or software verification. Its general coding capability and browser version may also suit users exploring Lean before choosing a local setup.