Make Your TYPO3 Website Accessible to Everyone: A Complete Guide

In simple terms, TYPO3 web Accessibility ensures that people with disabilities, such as those with visual impairments, hearing impairments, or mobility challenges, can easily access TYPO3 websites. Accessibility refers to creating websites and web applications designed to be usable by all individuals, regardless of their physical or technical abilities.

An accessible TYPO3 website is one where:

• A visually impaired user can navigate with a screen reader.
• A user with mobility challenges can interact using only a keyboard.
• A person with hearing loss can access video content through captions

As a powerful and flexible content management system, TYPO3 offers a wide range of tools and features to create dynamic and engaging websites. But to ensure that your TYPO3 website is accessible to all users, it's crucial to prioritize accessibility best practices.

• Inclusion: It allows you to reach a broader audience and cater to everyone equally.
• Legal Compliance: Accessibility laws like WCAG, BITV 2.0, WCAG 2.2, and EAA (European accessibility act ) mandate compliance to avoid legal repercussions.
• Improved SEO: Search engines prioritize websites that are accessible, leading to better rankings.
• Enhanced User Experience: Accessibility improves usability for all users, not just those with disabilities.

Creating a barrier-free TYPO3 website isn’t just about meeting legal requirements — it’s about building a better, more inclusive online experience for everyone. When you create an accessible website in TYPO3, you open doors to a wider audience, improve your site’s usability and enhance your SEO performance.

In Germany, two separate rules apply. BITV 2.0 is the German regulation that binds federal public bodies and has done for years. The Barrierefreiheitsstärkungsgesetz (BFSG) is newer and much wider: it brings the European Accessibility Act into German law and has applied to private-sector businesses selling to consumers since 28 June 2025. If you run a webshop, a booking flow, an online banking or ticketing service, this is the one that affects you.

You can read Accessibility Act 2025 here -

Easy Navigation

TYPO3 makes it simple to move around your website.

• Users can use just the keyboard—no mouse needed
• Skip links let users jump over menus
• A clear sitemap helps people find what they need fast

Understandable Videos and Audio

• Add subtitles and transcripts so people with hearing issues can follow videos and podcasts
• Makes your media content useful for all visitors

Accessible Forms

• All form fields are labeled clearly for screen readers
• Helpful error messages and instructions make filling out forms stress-free

 Image ALT Text Descriptions for All

• Add alt text to images and videos
• Helps people with vision impairments understand visual content

Making your TYPO3 site accessible ensures that everyone, including people with disabilities, can easily navigate and interact with your content. It's more than just meeting legal requirements—it's about creating a web experience that's inclusive for all. Here's everything you need to know about building an accessible website with TYPO3.

Make sure all non text content, such as images and videos, includes a text alternative. Use alt attributes for images and captions for videos. TYPO3 allows it easy to add this information directly in the backend. You can get help using AI Extension for TYPO3 which is designed to speed up your task.

The TYPO3 backend is the central hub where administrators, editors, and content managers handle website management, including content creation, template configuration, and extension installation. While much focus is placed on frontend accessibility, ensuring an accessible and barrier-free TYPO3 backend is just as important.

Why Accessibility in the TYPO3 Backend Matters

• Inclusive Work Environment – Everyone, regardless of ability, should be able to work smoothly in TYPO3.
• Better Productivity – A well-designed backend makes it easier for editors to manage content.
• Legal Compliance – Accessibility rules also apply to workplace tools, ensuring fair access for all employees.

T3AA (AI Accessibility for TYPO3) is a premium TYPO3 extension that helps teams find, fix and track accessibility issues without leaving the TYPO3 backend. It supports your work towards WCAG 2.1/2.2, EN 301 549, BITV 2.0 and the German BFSG — on public-sector portals, university sites, and the private-sector consumer websites that have been in scope since June 2025.

The current release is version 14.4.1 (September 2026), compatible with TYPO3 12.4 LTS, 13.4 LTS and 14.x on PHP 8.2–8.4, installed via Composer (nitsan/ns-t3aa).

Find, fix, prove – the loop T3AA is built around

Most accessibility tools stop at a report. T3AA is built as a working loop your editors can actually run:

• Find — scan a page or a whole page tree and get an accessibility health score with severity and WCAG-level breakdowns.
• Fix — every finding becomes a card in the Fix Hub that moves from New to In Progress to Completed, with fix guidance and an optional AI suggestion.
• Prove — rescan on a schedule and watch open issues fall over time, so you have a record of the work and not just a snapshot.

Why Use T3AA - TYPO3 AI Accessibility Extension?

• Scanning works without AI. The Scanner, Fix Hub, Live Audit and visitor widget need no AI provider and no API key at all.
• Your editors stay in control. Every AI draft — alt text, plain language, voiceover — waits for human approval before it goes live.
• Your content stays in your TYPO3 instance. With your own API keys, requests go straight from your server to the AI provider.
• The visitor widget is included in the license rather than sold as a separate subscription.
• Works across TYPO3 12, 13 and 14, so an upgrade doesn’t strand your accessibility work.

What Makes T3AA Different From Other Tools?

The 2026 WebAIM Million study tested one million home pages and found detectable WCAG failures on 95.9% of them, averaging 56.1 errors per page. The same handful of problems came up again and again: 83.9% had low-contrast text, 53.1% were missing alternative text, and 51% had form inputs with no label.

These are repetitive, high-volume problems — the kind that get skipped when a team is busy. That is where T3AA earns its place: it clears the bulk work so your people can spend their time on the judgement calls no scanner can make.

One caveat, stated plainly: automated testing only covers machine-checkable WCAG criteria. A high health score means the obvious failures are gone. It is not proof of conformance, and T3AA is not a compliance guarantee. Screen-reader flow, keyboard-trap logic and form usability still need a person.

T3AA bundles the work into a handful of screens. Here is what each one does.

1. AI alt text and image metadata – with editor approval

T3AA lists every image in your TYPO3 file mounts and shows you, per language, which ones have alternative text and which do not. You can generate alt text for a single image, a selection, or an entire folder, in several languages at once.

• Drafts are written into file metadata and stay marked as Draft until an editor approves them, so nothing reaches visitors unreviewed.
• Images that are purely decorative can be marked as such, so screen readers correctly skip them instead of describing them.
• Coverage is tracked per language — a site that is complete in German and empty in English shows up immediately.
• Works with OpenAI Vision or the AltText.ai API, using T3Planet Credits or your own API key.

2. Fix Hub – every finding becomes a task someone owns

This is the part most accessibility tools are missing. Instead of handing you a PDF of problems, T3AA turns each finding into a card on a board that moves from New to In Progress to Completed.

• Filter by severity — Critical, Serious, Moderate, Minor — or by WCAG level: A, AA, AAA and Best Practice.
• Each card carries the rule description, the number of occurrences, and guidance on how to fix it, with an optional AI suggestion per finding.
• A built-in contrast checker covers WCAG 1.4.3 and the stricter 1.4.6.
• Because the board holds state, you can show progress over weeks — useful when someone asks what you have actually done about accessibility.

3. Live Audit – accessibility checks while you are still typing

The Live Audit runs inside CKEditor and flags problems as the editor writes, not days later in a report. It needs no AI provider.

• Catches empty headings, skipped heading levels, bold paragraphs pretending to be headings, and headings so long they stop being useful.
• Flags images with no alt attribute, empty alt values, filenames used as alt text, and redundant phrases such as “image of”.
• Checks contrast, links, tables, embeds and form fields in the same pass.
• A running issue count sits in the corner of the editor, so problems get fixed by the person who created them.

This one feature prevents more issues than any batch fix, because it stops them being published in the first place.

4. Bulk scans, Scheduler, CLI and Lighthouse

One page at a time does not scale. T3AA lets you pick a page tree and a depth, queue the whole scope, and let it run.

• Add pages to a Bulk Scans queue and process them with a TYPO3 Scheduler task or a CLI command — ideal for a nightly or weekly run.
• Your license sets a page-scan quota, and the module shows pages scanned, remaining and your limit at a glance.
• Lighthouse checks run alongside the accessibility scan when you supply a Google PageSpeed API key, so performance and accessibility sit in one report.

Scanning needs a publicly reachable URL. Pages behind a login, localhost and .ddev.site addresses cannot be scanned.

5. AI voiceovers and downloadable audio

Some visitors would rather listen than read. For people with low vision, dyslexia or limited literacy, audio is often the difference between using a page and leaving it.

• Generate a narration of any page’s content and place it with the T3AA Voiceover content element.
• Choose the voice, model variant and speed; export as MP3, FLAC or WAV.
• Turn a written script into downloadable audio for manuals, policies or reports.
• Uses T3Planet Credits by default; ElevenLabs voices require your own ElevenLabs key.

6. Plain language with Simplify Text

WCAG asks for content that is understandable, and plain language is the part most teams never get to. T3AA builds it into a workflow TYPO3 editors already know.

• Simplify Text appears as an option in the TYPO3 Localize wizard, next to manual translation and AI translation.
• It rewrites body text into simpler language in the target language, so a plain-language version becomes a language variant of the page rather than a separate copy to maintain.
• Useful for readers with cognitive difficulties or limited German — and in Germany, for the Leichte Sprache expectations public bodies face.
• Like every AI feature, the result is a draft an editor reviews before publishing.

7. The visitor accessibility widget – included, not an add-on

T3AA ships a frontend widget that lets visitors adapt your site themselves, without installing anything.

• Ready-made profiles for motor impairment, blindness, colour blindness, dyslexia, low vision, cognitive and learning needs, seizure sensitivity, ADHD, older users and Parkinson’s.
• Individual controls for zoom, readable fonts, text size, letter and word spacing, line height, contrast, colour adjustment, reading masks and guides, link highlighting and animation pausing.
• Position, size, layout, branding and which profiles appear are all configurable in the backend.
• It can generate an accessibility statement page for you, which German law expects public bodies to publish.
• No visitor logs and no IP addresses are stored.

One important caveat: a widget is an aid for visitors, not a substitute for accessible markup. It does not on its own make your site meet WCAG or the BFSG. The fixes in your content and templates are what do that; the widget sits on top.

8. Human Expert – for the issues no scanner can catch

Automated testing reliably catches missing alternative text and colour-contrast failures. It does not catch screen-reader flow, keyboard-trap logic, form usability or cognitive load. Those need a person.

T3AA offers an optional managed review for exactly that: a trained specialist checks your new and updated pages each month and reports what the scanner missed. It runs alongside the automation rather than replacing it, and it is the honest answer to the limits described above. A scanner tells you your markup is clean; a person tells you whether your site is actually usable.

What T3AA costs

• 30-day free trial, no credit card, and it does not roll over into a paid plan.
• From €399 per year for one production domain, with tiers for larger numbers of domains. Staging and local installations are free.
• AI Credits are optional and prepaid — 50 free to start, then prepaid packs with no auto-recharge and no overage billing. Scans, Lighthouse, Live Audit and the widget use no credits at all, and you can use your own API keys instead.
• 30-day money-back guarantee.

If you're building a website in TYPO3, it's important to follow accessibility rules to make your site usable for everyone—including people with disabilities. These are the four that matter most in Europe, and who each one applies to.

Two exemptions are worth knowing. Under the BFSG, microenterprises — fewer than 10 employees and annual turnover or balance sheet total of no more than €2 million — are exempt when it comes to services such as an online shop, though the exemption does not extend to products. And a shop that genuinely cannot conclude contracts with consumers, pure B2B, falls outside the scope.

This is general guidance rather than legal advice. If you aren’t sure where your organisation sits, check with your legal counsel.