Vale
Open-source · self-hostable · replaces 1 SaaS tool on os-alt
errata-ai/vale · alive · ★ 5.38k · last commit 8d ago · 102 open issues
License: MIT
Good fit for Documentation teams and devs who want enforceable, repo-checked-in style guides — turn 'use active voice' into a CI check.
Weak at Not for casual prose — wrong shape for in-browser corrections; you write rules, not get sentences rewritten.
In a terminal? npx -y github:SolvoHQ/os-alt-cli grammarly prints
the Grammarly comparison table including Vale.
how the CLI works →
Replaces these SaaS
- Grammarly · Writing assistant / grammar + style checker
Vale is prose-linter-shaped, closer to ESLint than to Grammarly. Install via `brew install vale` or download the binary; pull a style package (`vale sync` against `.vale.ini` referencing Microsoft / Google / proselint styles). Wire into editor (VSCode `errata-ai.vale-server` extension) or CI for docs PR review.
README badges for the SaaS this replaces
Maintainers and forks: drop a badge in your README to link readers from the SaaS-comparison page back to your repo.