Rocq
Rocq: A free, kernel-checked theorem prover with dependent types, automation, and certified extraction. Ranked #3 of 35 in Formal Verification Tools by our editors (9.3/10); pricing: Free plan; best for certified theorem proving with strong tooling.
At a glance
- Editor score9.3 / 10
- PricingFree plan
- Best forCertified theorem proving with strong tooling
- Free planYes
- Paid fromFree
- Verification methodDeductive
- Founded1984
- Facts checked20 Sep 2026
Where it wins
- Kernel machine-checks proof terms through a small certification kernel
- Extracts certified programs to OCaml, Haskell, and Scheme
- Supports RocqIDE, major editors, Docker, and opam
Where it doesn't
- Focused on theorem proving rather than broader verification formalisms
- Self-hosted deployment requires managing the local environment
- No commercial pricing tiers or vendor-hosted plan options
Our verdict on Rocq
Rocq is an open-source interactive theorem prover and dependently typed programming language for mathematical formalisation, education, research, and verified software development. It lets users define programs, predicates, mathematical objects, theorems, and software specifications in Gallina and related Rocq vernacular commands. Proofs are developed interactively with tactics, while a small certification kernel machine-checks the resulting proof terms. Rocq supports Windows, macOS, and Linux through self-hosted deployment.
Its strongest technical distinction is the connection between formal proof and certified software. Rocq supports the Calculus of Inductive Constructions, dependently typed functional programming with Gallina, and decision and semi-decision procedures for proof automation. Once programs are formally specified and proved, the system can extract certified programs to OCaml, Haskell, and Scheme. Extensible notation, typeclass, plugin, and tactic mechanisms give projects room to shape their proof development environment. The standalone RocqIDE and integrations for VS Code, VS Codium, Emacs, Vim/Neovim, Docker, and opam broaden its fit across common development workflows.
Rocq is distributed as free software under LGPL 2.1, with no commercial pricing tiers. That makes it suited to teams, researchers, educators, and individual developers seeking a full theorem-proving system without a paid plan structure. Its focus is deliberate: buyers looking for deductive verification, theorem proving, proof artifacts, and certified program extraction should find the feature set aligned with that work. Organizations seeking a hosted service, a different formalism, or a broader commercial platform should consider alternatives instead.
Questions about Rocq
What does Rocq run on? Windows, macOS and Linux. It runs self-hosted and as a desktop app.
What does Rocq integrate with? 6 integrations, including VS Code, VS Codium, Emacs, Vim/Neovim and Docker.
Who is Rocq built for? Solo users, small businesses, mid-market companies and enterprises (our editorial estimate).
Your product? Our editors can test Rocq in depth and publish a review, labelled as paid · from $149/mo →
Rocq pricing
Rocq fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Verification method | Deductive |
| Supported formalisms | Theorem-proving |
| Counterexamples | Not verified |
| Proof artifacts | Yes |
| Input languages | Gallina and Rocq vernacular |
| Deployment | Self-hosted |
| Deployment | Self-hosted, Desktop |
| Platforms | Windows, macOS, Linux |
| Support | Community, Docs |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 6 integrations: VS Code, VS Codium, Emacs, Vim/Neovim, Docker, opam |
| Pricing | Free plan |
| Website | rocq-prover.org |
| Facts checked | 20 Sep 2026 |
Rocq integrations
Rocq lists 6 integrations on its own site.
- VS Code
- VS Codium
- Emacs
- Vim/Neovim
- Docker
- opam
Alternatives to Rocq
- IsabelleA free, open-source proof assistant for broad mathematical and systems verification.9.4
- PVSA broad, self-hosted environment for hybrid formal verification workflows.9.2
- LeanA kernel-checked Lean 4 environment for formal mathematics and verified programs.9.1
Rocq vs the competition
Compare Rocq with any tool side by side →
Used Rocq? Be the first to review it
The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used Rocq for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.
Write a reviewTwo minutes · verified accounts only · read by an editor before it appears
Featured on iTechGuides
Rocq is listed in our Formal Verification Tools directory. Add the badge to your site — it links back to this page.
<a href="https://www.itechguides.com/products/rocq/"><img src="https://www.itechguides.com/best/badge/rocq.svg" alt="Featured on iTechGuides" width="230" height="46"></a>
Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
Last updated · How we research and update