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, after the one-time model download. No cloud. No credit card for the free tier's ten scans a month, only a Google or Microsoft sign-in.
Free tier requires a Google or Microsoft account to sign in. No credit card.
- Built to 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.
The direction is one of retreat. The Title II deadline is now April 26, 2027 for public entities serving populations of 50,000 or more, and April 26, 2028 for public entities serving populations under 50,000, and special district governments, both against WCAG 2.1 Level AA. Section 504 follows on May 11, 2027 for recipients of federal financial assistance with 15 or more employees, and May 10, 2028 for recipients with fewer than 15 employees. In June 2026 the Department of Justice Office of Legal Counsel issued an opinion narrowing Olmstead and advised federal agencies that longstanding integration guidance is not independently enforceable. The Americans with Disabilities Act was signed in 1990.
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. Testing to date covers Chrome on Android and Chrome on Windows 11.
The foundation
Built on three pillars
Accessibility
Built to WCAG 2.2 Level AA and the Revised Section 508 standards; partially conformant today by self-evaluation, with the known gaps published. Partially conformant with WCAG 2.2 Level AA. Self-evaluation. No third-party accessibility audit has been conducted, and no SOC 2 or comparable certification is claimed. A formal audit by an independent third party is planned and has not yet been carried out. The tool that removes accessibility barriers is itself accessible, by keyboard and by screen reader.
Compliance
Detects personal and health identifiers on the device and warns before anything leaves it. GDPR-conscious data handling. Full audit trails. On-device processing keeps medical and student documents on the device, and nothing is sold to advertisers.
Security
OAuth-only authentication. Zero password storage. Encrypted everything. There is no central document store to breach, and the strongest protection is not holding the data in the first place.
A different approach
User-side access, not institution-side overlays.
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. Other accessibility tools ask institutions to fix their content. Aletheia gives users the power to fix it themselves.
Get started
Free to start. Paid tiers when you need more.
The free tier covers 10 scans a month on-device, at up to 25 pages per scan, with no credit card. Student raises the monthly limit to 30 scans at up to 50 pages each and stays on-device. Personal and Family add Enhanced AI. Professional adds bring-your-own-key processing. Campus and Enterprise licensing is available for institutions.