K Framework
5.7#27 in formal verification toolsAPILinuxmacOSSelf-hosted
VisitK Framework vs Why3
What both publish
| Fact | K Framework | Why3 |
|---|---|---|
| Editor integrations | The editor support page lists syntax support or plugins for Atom, BBEdit/TextWrangler, Emacs, IntelliJ IDEA, Notepad++, Pygments, Vim, and Visual Studio Code. | Why3 distributions include configuration files for Emacs and Vim, plus shell completion files for bash and zsh. |
| Installation | The official site directs users to install K from GitHub releases and provides a `kup` installation command. | Why3 can be installed via Opam, run from a Docker image, or compiled from source. |
| Purpose | K is a rewrite-based executable semantic framework for defining programming languages, type systems, and formal analysis tools. | Why3 is a platform for deductive program verification that uses WhyML and external theorem provers to discharge verification conditions. |
| Support | The official site lists Discord as its most direct support channel and also links to a Matrix room. | The project provides a user mailing list, a Zulip chat, and a bug tracking system. |
K Framework plans
No prices published.
Why3 plans
- Why3Free
Pick K Framework if…
You want what its maker publishes above — check its page for the details.
Pick Why3 if…
Why3 suits developers and researchers working on deductive verification with contracts and WhyML. It may also fit users who need to connect external provers or use its OCaml API.