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Offrun vs ValidateHTML

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Offrun compared with ValidateHTML
DetailOffrun logo OffrunValidateHTML logo ValidateHTML
What it doesRun Claude Code, Codex, Antigravity, Grok Build and Muse Code in parallel on your Mac with git worktrees and peer review HTML validation API and free online validator for deployed pages
StageNot given Not given
FoundedNot given Not given
Based inUS FR
Pricing modelFree Freemium
PricingFree. Every feature, no seats to count, no card. Unlimited agents and projects, unlimited on-device dictation, up to 100 on-device schedules, unlimited connected coding agent accounts. Free: unlimited validators and checkers, no account required, free site scans. Solo: 49 EUR per month including full site reports and monitoring of 1 site. Agency: 149 EUR per month including monitoring of 10 sites. Automatic fixes: from 3 EUR for 10 pages, 1 free fix daily without account. Full sit
Key features
  • Peer review by a second agent before accepting changes
  • Multiple account support and automatic usage limit handling
  • Integrated preview browser and diff viewer
  • Support for Claude Code, Codex, Antigravity, Grok Build and Muse Code
  • Accessibility (WCAG) validation with machine-detectable failures
  • HTML specification compliance checking
  • Meta tags and viewport validation
  • Open Graph checker
  • Page weight measurement and compression analysis
  • Single API endpoint with configurable checks
  • Single verdict field for build pipeline integration
  • Automatic AI-powered HTML fixes
  • Weekly site audits with change notifications
  • GitHub Actions integration
What makes it different
  • All computation and data stays on your Mac; no server involvement in processing your code or handling your API keys
  • Completely free with no seat counting or subscription required
  • Use multiple accounts per agent to work around usage limits without losing context
  • One API call runs five checks on a single page fetch instead of five separate requests
  • Single boolean verdict for build pipelines to act on without parsing prose
  • False-positive filtering eliminates unreliable findings
  • Quality score based on issue variety, not count, capping best-practice impact
  • Free tools remain unlimited without account or daily limits
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)22 no change since last check9 no change since last check
Trust Flow (Majestic)510
Citation Flow (Majestic)3232
Referring domains (Majestic)222124

6 details filled in for both companies.

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