Hushbug vs axe DevTools
axe DevTools is a dedicated accessibility auditor. Hushbug catches accessibility issues alongside errors, performance, and network problems. See which fits your workflow.
Short answer: If accessibility compliance is your job, use axe DevTools. If you want to catch basic accessibility issues alongside other bugs while you develop, Hushbug covers that without any extra effort.
What axe DevTools does
axe DevTools is built by Deque, the company behind the axe-core accessibility testing engine. The free Chrome extension adds an "axe DevTools" panel to Chrome DevTools. You click "Scan ALL of my page" and get a list of accessibility violations grouped by severity, with explanations and fix suggestions.
The depth is significant. axe DevTools checks against WCAG 2.1 and 2.2 at levels A, AA, and AAA. It catches missing alt text, insufficient color contrast, improper heading hierarchy, missing form labels, ARIA misuse, focus order problems, and dozens more. Each violation links to Deque University documentation explaining the rule and how to fix it.
The paid axe DevTools Pro ($840/year per user) adds Intelligent Guided Testing, which walks you through manual accessibility checks that automated tools cannot cover. It also provides an issue dashboard for tracking remediation across a team.
If you need to meet WCAG compliance for legal, contractual, or organizational reasons, axe DevTools is the standard tool. It is used by Microsoft, Google, and most accessibility consulting firms.
What Hushbug does differently
Hushbug is not an accessibility-first tool. It monitors your browser for 10 categories of issues: console errors, network failures, performance problems, security warnings, and accessibility violations. Accessibility is one category among many.
The accessibility checks in Hushbug are real but narrower than axe DevTools. Hushbug catches missing alt text on images, form inputs without labels, and low color contrast ratios. These are the violations that show up most often in everyday development. It does not cover the full WCAG specification.
The key difference is how it runs. axe DevTools requires you to open DevTools, navigate to the axe panel, and manually trigger a scan. Hushbug runs automatically as you browse. You do not need to remember to check for accessibility. If you navigate to a page with images missing alt text, Hushbug flags it in the sidebar alongside any console errors or network failures from the same page.
For a solo developer who is not doing dedicated accessibility work, Hushbug's passive detection catches the obvious problems without adding another manual step to the workflow.
Feature comparison
| Feature | axe DevTools | Hushbug |
|---|---|---|
| Accessibility focus | Primary purpose | One of 10 detection categories |
| WCAG coverage | Full (2.1 + 2.2, A/AA/AAA) | Partial (common violations) |
| Missing alt text | Yes | Yes |
| Form labels | Yes | Yes |
| Color contrast | Yes | Yes |
| ARIA validation | Yes (detailed) | No |
| Heading hierarchy | Yes | No |
| Focus management | Yes | No |
| Guided manual testing | Pro only ($840/yr) | No |
| Trigger | Manual scan | Automatic (passive) |
| Console error detection | No | Yes |
| Network monitoring | No | Yes |
| Performance monitoring | No | Yes |
| Data storage | Local (report) | Local (chrome.storage.local) |
| Free tier | Yes (manual scans) | Yes (2 detectors) |
| Paid tier | $840/year per user | $7/month |
Verdict
If accessibility is a core requirement of your work, if you need WCAG AA compliance for a client or employer, if you are remediating an existing site's accessibility debt: use axe DevTools. It is the most thorough browser-based accessibility tool available, and the free version covers most automated checks.
If you are a developer who wants to catch basic accessibility problems during normal development without adding a manual audit step: Hushbug's passive detection handles that. You get notified about missing alt text and unlabeled inputs while you work on other things. It is not a replacement for a proper accessibility audit, but it stops obvious violations from shipping.
You can run both. axe DevTools for periodic deep audits. Hushbug for daily passive monitoring that also catches errors, performance issues, and network failures in the same panel.