Why accessibility overlays don't work (and what to do instead)

If you’ve spent any time in accessibility circles, you’ve seen the ads: "Install one line of JavaScript and become ADA compliant overnight." Companies like accessiBe and UserWay sell overlays that promise to shield your site from lawsuits with a simple widget. It sounds like magic—because it is.

The reality is that these overlays are just a layer of JavaScript sitting on top of fundamentally inaccessible code. They attempt to patch problems in the browser instead of fixing them at the source. Screen readers and other assistive technologies often parse the page before the overlay even loads, which means the "fixes" never reach the people who need them. Worse, overlays can inject conflicting ARIA labels, hijack focus, and break native keyboard behavior—making the experience even harder for disabled users.

What screen reader users actually need is clean, semantic HTML. That means proper heading structures, meaningful alt text, form labels that are programmatically associated with their inputs, and logical focus management. Keyboard navigation should work without traps, and interactive elements must be reachable and operable without a mouse. These aren’t cosmetic issues; they’re foundational.

The only real path to accessibility is source-code remediation. That means auditing your actual markup, fixing components at the root, and embedding accessibility into your design system and engineering workflow. This is exactly what OnlyEnable focuses on—helping teams build accessible products from the ground up rather than masking symptoms with a third-party script.

If you’re serious about making your product accessible, skip the overlay. Start with the code.

Learn more about how we help teams build truly accessible products at https://onlyenable.com.