AccessiScanIf you searched for the best WCAG accessibility scanner in 2026, you found two kinds of pages: enterprise vendors who won't show a price, and overlay companies promising one-click compliance. Neither is what most small teams actually need. Here is an honest comparison of the real options — what each one is good at, what it costs, and where it falls short — including ours.
One thing up front, because it matters: no automated scanner makes your site “compliant.” Automated tools reliably catch roughly 30–40% of WCAG 2.1 AA success criteria — the mechanical ones like contrast, alt text, form labels, and heading structure. The rest needs a human testing with a screen reader. Any vendor who tells you a scan or a widget makes you compliant is overselling, and in 2025 the FTC fined one of them (accessiBe) $1M for exactly that. Use this list to find real issues and a real plan — not a badge.
The quick answer
- Enterprise program, budget is no object: Siteimprove or Level Access.
- Developers who live in the browser/CI: Deque axe.
- Small business or agency that needs a real audit at a real price: AccessiScan.
- You got a demand letter and need dated evidence this week: AccessiScan's one-time audit + Legal Evidence Pack.
- What to avoid: overlay widgets sold as “instant compliance.”
The tools, compared
Siteimprove
A mature enterprise platform: site-wide scanning, dashboards, content QA, and analytics beyond accessibility. It's genuinely capable. The trade-off is price and fit — contracts typically run in the $15,000–$50,000/year range and are aimed at large organizations with a dedicated accessibility program. For a 5-person team or an agency managing client sites, it's usually far more platform (and cost) than the job needs.
Level Access
Enterprise accessibility with a strong services arm — manual audits, VPATs, training, legal-adjacent support. Excellent if you need a full program with human experts on retainer. Same caveat as Siteimprove: enterprise pricing, enterprise sales cycle.
Deque axe
The axe engine is the de-facto standard for automated checks and powers a lot of the ecosystem. axe DevTools is great for developers — browser extension, CI integration — at around $45/user/month for the paid tiers. It's a developer tool, though, not a buyer-facing audit: you get findings in your workflow, not a client-ready report or a remediation narrative.
WAVE / Lighthouse (free)
Both are free and useful for a first look. WAVE (by WebAIM) gives a visual overlay of issues; Lighthouse ships in Chrome DevTools. The limit is that they produce a developer artifact — not dated, not signed, not a report you can hand to a lawyer or a procurement officer, and they scan one page at a time.
Overlay widgets (accessiBe, UserWay, AudioEye)
These promise compliance from a single script tag. The evidence says otherwise: roughly a fifth of US ADA web lawsuits in 2024–25 targeted sites that already ran an overlay, and the FTC fined accessiBe $1M in 2025 over its compliance claims. Overlays don't fix the underlying code. We cover this in depth in the overlay lawsuit guide.
AccessiScan
Full disclosure: this is us. AccessiScan is built for the gap the list above leaves open — a real WCAG 2.1 AA scan and audit at a price a small business or agency can actually pay. The free scanner needs no account; Pro starts at $39/month; a one-time audit with a Legal Evidence Pack is $149. The Evidence Pack is the part the others don't offer: a timestamped, SHA-256 hash-signed audit record with a public verification page, a 30/60/90-day remediation plan pre-filled with your issues, a draft accessibility statement, and a demand-letter response template for your attorney. It documents your conformance status and good-faith effort — it does not certify legal compliance, and it is not legal advice.
Price, side by side
- WAVE / Lighthouse — free (per-page, developer artifact)
- AccessiScan — free scanner; $39/mo Pro; $149 one-time audit + Evidence Pack
- Deque axe DevTools — ~$45/user/month
- Siteimprove / Level Access — ~$15,000–$50,000/year
For the full breakdown of what you get at each tier, see how much a WCAG audit costs in 2026.
How to choose
Match the tool to the job, not the brand. If you run a large program with budget and headcount, the enterprise platforms earn their keep. If you're a developer, axe belongs in your CI. If you're a small business, an agency, or someone who just received a demand letter, you need an accurate scan, a prioritized fix list, and — increasingly — a dated record that you acted. That last need is where most of the list comes up short and why we built AccessiScan the way we did.
Run a free scan now, or get the one-time audit + Legal Evidence Pack →. Honest scope, real fixes, no badge theater.