Vale vs Markup AI

Vale9.2Visit Markup AI8.5Visit

Higher score Vale #2 in Writing Style Checkers 9.2/10 Free plan Free plan✓ 4 of 5 features Visit Vale

vs

Markup AI #6 in Writing Style Checkers 8.5/10 30-day trial Free trial✓ 5 of 5 features Visit Markup AI

• Vale fits best

  Technical teams needing programmable style checks

• Markup AI fits best

  Large teams auditing structured content

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Side by side

Feature	Vale 9.2/10 Visit ↗	Markup AI 8.5/10 Visit ↗
At a glance
Editor score	9.2	8.5
Ranking	#2 in Writing Style Checkers	#6 in Writing Style Checkers
Best for	Technical teams needing programmable style checks	Large teams auditing structured content
Pricing model	Free plan + paid	Paid
Starting price	$19/user/mo	—
Free plan	✓ (best)	—
Free trial	—	30 days
Deployment	Cloud, Self-hosted, Browser extension	Cloud, Browser extension, Desktop
Platforms	Web, Windows, macOS, Linux, Chrome extension	Web, Windows, macOS, Chrome extension
Support	Community, Docs	Tickets, Community, Docs
Integrations	16 integrations	8,000+ integrations
Built for	Solo, Small business, Mid-market, Enterprise	Small business, Mid-market, Enterprise
Features Vale 4/5 · Markup AI 5/5
Custom style guide	✓	✓
Terminology management	✓	✓
Brand voice rules	✓	✓
Team workflow	✓	✓
API access	Not checked yet	✓ (best)
Specs
Editor support	VS Code, Cursor, Windsurf, Neovim, Sublime Text, Zed, Emacs, JetBrains IDEs, Obsidian, Oxygen XML, Qt Creator, Vim ALE	Google Docs, Microsoft Word, Microsoft PowerPoint, Contentful, AEM Guides, Oxygen XML, XMetaL Author, MadCap Flare, MadCap IXIA CCMS, Heretto CCMS, Figma, VS Code
Rule action	Block	Suggest
Our review
Pros	Custom YAML rules enforce terminology, vocabulary, and editorial guidance Works across editors, repositories, CI pipelines, and pre-commit hooks Free open-source CLI with markup-aware linting and blocking actions	Checks style, terminology, brand voice, personas, and content quality Audits repositories and scores content at scale Connects to editors, documentation tools, AI assistants, and custom apps
Cons	The hosted authoring layer requires a paid CMS plan The Free plan includes a read-only sample project Advanced repository editing and support start with the Pro plan	No free plan; access begins with paid plans after the trial SSO, SCIM, custom agents, and custom word volume require Enterprise Starter support is community-based rather than priority ticket support
Our verdict	Vale is an open-source command-line prose linter for writers, documentation teams, and developers. It checks Markdown, HTML, AsciiDoc, reStructuredText, and other formats against YAML-based rules. Teams can define terminology, vocabulary,… Read the review →	Markup AI is a content governance platform for marketing and technical documentation teams. It reviews human- and AI-written content against configured style guides, brand voice rules, terminology, and personas. The service explains… Read the review →

Strengths and trade-offs

• Vale — where it wins

  • Custom YAML rules enforce terminology, vocabulary, and editorial guidance
  • Works across editors, repositories, CI pipelines, and pre-commit hooks
  • Free open-source CLI with markup-aware linting and blocking actions

  Where it doesn't

  • The hosted authoring layer requires a paid CMS plan
  • The Free plan includes a read-only sample project
  • Advanced repository editing and support start with the Pro plan

• Markup AI — where it wins

  • Checks style, terminology, brand voice, personas, and content quality
  • Audits repositories and scores content at scale
  • Connects to editors, documentation tools, AI assistants, and custom apps

  Where it doesn't

  • No free plan; access begins with paid plans after the trial
  • SSO, SCIM, custom agents, and custom word volume require Enterprise
  • Starter support is community-based rather than priority ticket support

• Vale9.2/10 · Free plan

  A programmable prose linter with YAML rules, editor diagnostics, and CI workflows.

  Visit ValeFull verdict →
• Markup AI8.5/10 · 30-day trial

  A governance-focused checker for teams managing standards across structured content.

  Visit Markup AIFull verdict →