Aletheia by Lonia AI
Make any page or document accessible, on your device.
You should not have to wait for the web to fix itself.
Aletheia reads inaccessible web pages and documents, then rebuilds them with real text, described images, proper structure, and labeled forms. The work happens on your device, under your control, in seconds.
Free tier requires a Google or Microsoft account to sign in. No credit card.
- WCAG 2.2 AA
- Section 508
- On-Device AI
- No Cloud Document Storage
- Free Tier Forever
Why this exists
The standards have existed for decades. Most of the web still fails them.
Accessibility standards are not new. The Americans with Disabilities Act was signed in 1990. Section 508 of the Rehabilitation Act and the Web Content Accessibility Guidelines have been in use for over two decades. The requirements are well documented and widely understood.
The results have not kept pace. In its 2026 analysis of the top one million home pages, WebAIM detected WCAG 2 failures on 95.9 percent of them, an average of 56.1 errors per page. For a screen reader user, those failures are not abstract: an unlabeled image is announced as nothing, a scanned PDF is a picture a screen reader cannot read, and a form with no labels cannot be completed.
This affects a large population. The Centers for Disease Control and Prevention report that more than one in four U.S. adults live with a disability. The legal framework continues to develop, and timelines move slowly: in April 2026 the Department of Justice extended the ADA Title II web accessibility compliance dates for state and local governments by a year.
Aletheia does not ask people to wait for that timeline. It gives the user the tools to make content accessible now, on their own device.
How it works
Three steps to accessible content
Open
Point Aletheia at a web page or upload a document. PDF, DOCX, images, and more.
Rebuild
Aletheia finds the barriers: missing alt text, image-only PDFs, broken headings, unlabeled forms. On-device AI describes images and reads scanned text, working offline after one-time setup download, and the content is restructured with proper headings and labels.
Keep
The accessible version is saved in your local library on your device. Return to it anytime, with no rescanning and no cloud storage.
Aletheia runs in the browser across platforms. Platform support is ordered Android Chrome first, then iOS Safari, then desktop browsers.
The foundation
Built on three pillars
Accessibility
WCAG 2.2 AA and Section 508 across every screen. The tool that removes accessibility barriers is itself accessible, by keyboard and by screen reader.
Compliance
Privacy and disclosure handled by design. On-device processing keeps medical and student documents on the device. Billing runs through Stripe; nothing is sold to advertisers.
Security
OAuth sign-in only, no stored passwords, HTTPS throughout, and no central document store to breach. The strongest protection is not holding the data in the first place.
A different approach
User-side access, not institution-side overlays.
Many organizations install accessibility overlays or widgets that promise to make a site compliant automatically. The public record does not support that promise:
- In 2025 the Federal Trade Commission finalized a one million dollar settlement with the overlay vendor accessiBe over deceptive claims that its tool could make a website automatically conform to WCAG.
- The National Federation of the Blind adopted a 2021 resolution stating that accessibility overlays do not provide equivalent access for blind users.
- UsableNet's 2024 year-end report counted more than 4,000 U.S. digital accessibility lawsuits filed that year, and roughly one in four named a website that was already running an accessibility widget.
Aletheia takes the opposite approach. Instead of a script bolted onto a publisher's site, it works on the user's own device and fixes content for the person who needs it. The user stays in control of what is processed and what is kept. Institutions still owe accessible content. Aletheia covers the gap until they deliver it.
Get started
Free to start. Paid tiers when you need more.
The free tier covers 10 pages a month on-device, with no credit card. Student, Personal, Family, and Professional tiers add higher limits, optional Enhanced AI, and bring-your-own-key processing. Campus and Enterprise licensing is available for institutions.