WCAG accessibility auditor
Crawl any website and get a full WCAG 2.2 A/AA accessibility report. macOS desktop app, free to download.
macOS Desktop App
Start the audit.
Get back to work.
Point Vesper Audit at any URL and walk away. WCAG 2.2 A/AA checks, a built-in report viewer, and no account required. Free forever - upgrade to Pro when you need full-site crawls and exports.
v1.0.0 · Apple Silicon · Updates automatically · What's new
Requires macOS · Google ChromeWhat it does
Single Page scans
Audit any URL. Runs full WCAG 2.2 A/AA checks, custom link text rules, and broken link detection on the page - free on every plan, with no time limit.
WCAG 2.2 A/AA checks
Runs axe-core on every page. Violations and best practices reported separately, with WCAG criterion links for each issue.
Link text checks
Flags ambiguous link text ("read more", "click here") and duplicate link text that leads to different destinations - two WCAG 2.4.4 patterns axe-core does not cover.
In-app report viewer
Browse results in the Reports tab immediately after every scan. No PDF, no file picker. Impact badges, WCAG references, and guide links built in.
Page load timeout
Set how long Vesper Audit waits per page before moving on. Increase it for slow-loading sites, decrease it to speed up large crawls.
Full Site crawl
Crawls every internal page automatically from your starting URL. Follows links, checks external URLs and PDFs for broken links, and delivers a site-wide report.
Five export formats
PDF for clients, Markdown for docs, CSV for spreadsheets, Notion for teams. Every format from a single run - mix and match on each audit.
Report Filter
Narrow a scan to one rule category - Links, Images, Forms, Color & contrast, Page structure, or Keyboard & focus. Run a focused report, hand it to the right person, fix it, rescan.
Suppressions & exclusions
Hide known false positives per rule. Skip URL patterns during crawls. Known CMS patterns are suppressed by default so reports reflect real issues, not platform noise.
Scan profiles
Save named configurations per client. One click restores the URL, scan options, exclusions, and suppressions for that site - export and import as JSON.
Auditor name & report settings
Add your name or agency to every exported report. Set a custom viewport width per scan. Omit the Vesper Audit attribution line when delivering client work.
Not just a spreadsheet
Reports that explain themselves.
Most audit tools hand you a raw violation list and leave you to figure out what it means. Vesper Audit reports include plain-language descriptions for every violation, the WCAG criterion it maps to, and a direct link to the relevant Vesper Guide so you know exactly how to fix it.
Every report is fully styled - whether you're browsing results in the app, exporting to PDF, or syncing to Notion. The format that lands in front of your client or board looks like it was designed to communicate, not just dumped from a database.
Built-in report viewer
Results without the file shuffle.
After every scan, flip to the Reports tab and browse your results immediately - no PDF, no file picker. Pages sorted by violation count. Click any page to see every violation, its impact level, the WCAG criterion, and the affected element.
Guide links surface directly in the viewer so you can go from "violation found" to "I know how to fix this" in one click. Historical scans are always available - just open the JSON results file from any previous audit.
Report formats
The in-app viewer is always free. Pro unlocks four additional export formats for any workflow.
Always free — In-App Viewer
Browse scan results in the Reports tab without opening any external app. Pages sorted by violation count, with impact badges, WCAG references, and guide links per violation. Available on every plan.
PDF Pro
Branded, print-ready report with cover page, summary grid, violations per page, PDFs found, and broken links. Auditor name on cover if set. Generated natively - no external dependencies.
Markdown Pro
A complete audit report in Markdown format. Paste into Confluence, GitHub, or any Markdown-rendering tool. Includes cover section, violations per page, broken links, and PDFs found.
CSV Pro
Two files per audit: violations.csv lists every violation with rule ID, impact level, WCAG criterion, page URL, and affected element. summary.csv gives per-page counts. Import directly into Excel or Sheets.
Notion Pro
Creates a full page hierarchy in your Notion workspace - Audit Report, PDFs Found, Broken Links, Audit Log, and Suppressed Errors as separate child pages. Syncs in the background so you can keep working.
Plans
Vesper Audit is free to download and use for as long as you like. Pro adds full-site crawls, professional exports, and advanced settings for teams and agencies.
No account. No time limit. No catch.
- ✓ Single Page scan
- ✓ WCAG 2.2 A/AA checks
- ✓ In-app report viewer
- ✓ Link text checks
- ✓ Page load timeout
- ✓ Auto-updates
v1.0.0 coming soon
Everything compared
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Single page scan
Audits one URL without crawling the rest of the site. Useful for quick spot-checks on a specific page.
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Full site crawl
Follows all internal links from your starting URL and audits every page it finds. No sitemap required.
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Page load timeout
How long Vesper Audit waits per page before moving on. Increase for slow-loading sites. Default: 30 seconds.
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Viewport width
Sets the browser width during each scan. Use 375 for mobile, 768 for tablet. Default: 1280.
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| Reports & exports | ||
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In-app report viewer
Browse results directly in the Reports tab - no files to open. Pages sorted by violation count with WCAG references and guide links per issue.
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PDF export
A polished, print-ready report with cover page, severity summary, violations per page, and broken links. Ready to deliver to clients.
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Markdown export
The full audit in .md format. Paste into Notion, Confluence, GitHub, or any Markdown-rendering tool.
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CSV export
Two spreadsheet files per audit: one row per violation, one summary per page. Import directly into Excel or Google Sheets.
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Notion export
Creates a structured page hierarchy in your Notion workspace after each scan. Syncs in the background so you can keep working.
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Auditor name
Your name or agency appears in the header of every exported report. Also controls whether Vesper Audit attribution appears in client-facing outputs.
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| Filtering & focus | ||
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Report filter
Narrow results to Links, Images, Forms, Color & contrast, Page structure, or Keyboard & focus. Hand the right report to the right person.
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Path & query exclusions
Skip URL patterns during the crawl - event listings, paginated archives, or any section that would inflate results without adding useful findings.
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Violation suppressions
Hide known false positives or accepted risks from output. Raw audit data is preserved and suppressed items are noted at the bottom of each page.
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Scan profiles
Save named configurations per client. One click restores the URL, scan options, exclusions, and suppressions for that site.
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