Perceivable
Nimbus verifies color pairs, 7:1 contrast ratios, captions, and text alternatives across every light and dark theme you ship.
Inclusive design platform
Design that includes everyone.
Nimbus audits, fixes, and verifies your product against WCAG AAA — so every person, on every device, can use what you build.
Built for the WCAG AAA standard
Every check Nimbus runs targets AAA-level contrast, full keyboard operability, and screen-reader-first markup — in both color themes, on every commit.
Operable
Full keyboard paths, visible 4px focus rings, 44px touch targets, and motion preferences respected — tested automatically.
Understandable
Plain-language checks, consistent landmarks, and error messages that pair icons with text — never color alone.
How Nimbus works
Three steps from first audit to a signed AAA report — no accessibility expertise required to start.
Audit
Point Nimbus at a URL or repository. Every component is tested against WCAG 2.2 AAA criteria in both color themes.
Fix
Get prioritized, copy-paste fixes — contrast tokens, ARIA roles, focus order — ranked by real user impact.
Verify
Re-run checks in CI. Nimbus blocks regressions and ships a signed accessibility report you can share with clients.
Simple, transparent pricing
Start free, upgrade when your team grows. Every plan includes both light and dark theme testing.
Starter
$0 /month
- 3 audits per month
- 1 project
- Community support
Recommended
Studio
$18 /user/month
- Unlimited audits
- CI regression checks
- AAA contrast engine
- Priority support
Organization
$49 /user/month
- SSO & audit logs
- Custom WCAG policies
- Dedicated a11y expert
Trusted by teams who care
“Nimbus turned our accessibility backlog into a two-week sprint. The AAA contrast engine alone caught 214 issues our old tooling called compliant.”
“Our screen-reader users noticed the difference before we announced it. Support tickets about confusing forms dropped to zero.”
Frequently asked questions
What does WCAG AAA mean in practice?
AAA is the strictest WCAG level: at least 7:1 text contrast, enhanced keyboard support, and extended alternatives for time-based media. Nimbus tests your components against these success criteria automatically.
Do I need to change how my team writes code?
No. Nimbus works with your existing stack and ships fixes as reviewable patches. Most teams see their first AAA-passing page within a day of onboarding.
Can I use Nimbus with an existing accessibility audit?
Yes. Import any audit report and Nimbus tracks each finding to closure, re-verifying every fix in CI so resolved issues never resurface.
Make inclusion your default.
Join 12,000 teams shipping products every person can use. Start with a free AAA audit — no credit card required.