Web Accessibility Checker for Current Browser Pages

Why use a browser-based web accessibility checker?

Many website accessibility issues only appear in the page state you are actually testing: authenticated screens, form flows, dialogs, dynamic content, local builds, or staging environments. DevCheck keeps the check inside your browser instead of requiring a public URL.

• Check local and staging pages

  Run accessibility checks before a page is public, including localhost and staging URLs, without sending the page to an external URL scanner.

• Inspect authenticated and interactive states

  Check login-only pages, user flows, form states, dialogs, and dynamic content after they appear in the browser.

• Locate elements that need fixing

  Use axe-core to find machine-detectable issues and map results back to page elements so fixes can be made and re-tested.

• Add visual context checks

  Use color vision, text spacing, visual field loss, presbyopia, myopia, and cataract simulations to review readability and visual risk before a formal audit.

• Add AI semantic quality checks

  Review link purpose, language marking, and image alt text quality, including suggested alt text improvements, to cover content context that rule-based tools often cannot judge.

How to check a webpage with DevCheck

The workflow stays inside the browser, so public pages, localhost builds, staging pages, and authenticated flows can be checked from the state you already have open.

1. Step 1

   Install the browser extension (Chrome/Edge or Firefox).

2. Step 2

   Open the public page, local build, staging page, or authenticated flow you want to inspect.

3. Step 3

   Run the Axe-Core A11Y Test.

4. Step 4

   Review issue types, impact, related rule clues, and affected elements.

5. Step 5

   Use simulation modes or AI Semantic Check to review readability, interaction contexts, image alt suggestions, and content-description quality, then fix and re-test.

Accessibility checkers cannot replace a complete manual audit

DevCheck helps people reviewing pages find common machine-detectable issues faster, but automated checks cannot certify full WCAG, ADA, or legal compliance. Formal review still requires manual inspection, keyboard testing, assistive technology testing, and contextual judgment.

Pre-release accessibility check workflow

Use this path when you need to check a page, not just read about accessibility. It connects automated checks, keyboard review, semantics, content, visual states, PDF structure, and remediation into one review sequence.

1. Step 1. Start with the page and release scope

   How to test website accessibility before launch

   Decide whether the review covers a public page, local build, staging page, authenticated flow, interactive state, or PDF.

2. Step 2. Run the first automated check

   What automated accessibility checks can and cannot find

   Use scan results to find machine-detectable issues while keeping the parts that still need human judgment visible.

3. Step 3. Review keyboard and focus path

   How to check keyboard focus path

   Check whether focus can move, whether the order makes sense, whether focus gets trapped, and whether the path matches the page context.

4. Step 4. Review accessible names

   How to implement accessible names

   Check whether buttons, links, form controls, and interactive components expose understandable names.

5. Step 5. Review image alternatives

   How to write meaningful image alt text

   Review alt text based on the image purpose in context, not only what appears visually.

6. Step 6. Review color, states, and readability

   Color contrast checks before release

   Check real states such as text, focus, errors, hover, disabled controls, icons, and component boundaries.

7. Step 7. If PDFs are in scope, inspect structure signals

   PDF accessibility structure checks

   Review language, tags, images, links, forms, bookmarks, and page consistency signals.

8. Step 8. Turn findings into a remediation plan

   Web accessibility remediation plan

   Organize next steps by user task, impact scope, owner, repair level, and re-test method.

Who should use this web accessibility checker?

• Frontend developers

  Find common accessibility issues while building UI, forms, components, and interactive flows.

• QA and testing

  Add accessibility checks to pre-release and regression testing workflows.

• PMs, content, and operations

  Run a first check when something looks risky, including page states, use contexts, and PDF structure signals.

• Design and product

  Review color, readability, visual conditions, and potential interaction difficulty during design review.

How to choose within the DevCheck cluster

• Accesserty DevCheck

  The main product page for DevCheck capabilities, target roles, data boundaries, and installation links.

• WCAG Compliance Tool

  Use this entry point when the intent is WCAG A/AA issue clues, severity, success-criterion context, and re-testing after fixes.

• Color Contrast Checks Before Release

  Use this guide when the question is whether text, states, focus indicators, icons, and component boundaries remain clear before release.

Frequently asked questions