❗ You should probably just go to a11yresources.webflow.io instead. It's awesome.
A curated list of accessibility resources by @ediblecode
- Accessibility resources
 
- Equality Act 2010
 - EU directive - accessibility of the websites and mobile applications of public sector bodies
 
Use external providers to deliver training, run audits, perform user testing and give advice:
- Shaw Trust
 - AbilityNet
 - WebAIM - Not for profit organisation offering complete web accessibility services
 - The Paciello Group - end-to-end accessibility consultancy.
 
- Jaws - The world's most popular screen reader
 - NVDA - Free screen reader for Windows
 - VoiceOver for iOS X and OS X
 - Dolphin ScreenReader - Formerly Supernova
 - ChromeVox - Free screen reader for Chrome
 - TalkBack - Screen reader for Android devices
 - Narrator - Windows screen reader
 
- ZoomText - ZoomText Magnifier/Reader is a fully integrated magnification and reading program tailored for low-vision users
 - MAGic - MAGic is a screen magnification and screen reading solution for low vision computer users
 
- High Contrast
 - Visolve - The assistive software for people with color blindness
 
- Wave WebAIM - Chrome and Firefox extension for evaluating web content for accessibility issues. Also includes a colour contrast tool, desauturation tool and testing without styles.
 - Siteimprove Accessibility Checker - Comprehensive tool for evaluating accessibility issues
 - Accessibility Developer Tools - Chrome Extension for ccessibility audits and element properties
 - HTML_CodeSniffer
 - a11y.css - Bookmarklet to warn developers about possible risks and mistakes that exist in HTML code
 - Tenon
 - aXe - free, open-source accessibility testing tool that runs in your web browser
 - AChecker - tool that checks single HTML pages for conformance with accessibility standards to ensure the content can be accessed by everyone
 - European Internet Inclusion Initiative - Check the Accessibility of a Web Page
 - Asqatasun - Opensource web site analyser
 - tota11y - An accessibility visualization toolkit
 - Visual ARIA Bookmarklet - visualise ARIA usage
 - ASLint - Accessibility testing tool
 - Koa11y - Desktop app that allows you to automatically detect accessibility (a11y) issues on webpages.
 - a11y-outline - Bookmarklet for listing landmarks, headings or links
 - MAWD - MAWD combines automated testing with your input to find everything you need to fix
 - eslint-plugin-jsx-a11y - Static AST checker for accessibility rules on JSX elements.
 - react-a11y - Warns about potential accessibility issues with your React elements.
 - Accessibility Insights - Solve accessibility issues before they reach your customers
 - Twitter Image Descriptions Stats - Check your Twitter images have alternative text descriptions
 - Check the Accessibility of a PDF Document
 - PDF Accessibility Checker (PAC 3)
 
The W3C also provides a Web Accessibility Evaluation Tools List.
- Hemingway App - Highlights common problems that can get in the way of clear writing
 - Readable - Readability testing tool
 - Readability Grader - Simple tool to give text a readability score
 
- ChromeLens - Chrome DevTools extension to develop for the visually impaired
 - Vischeck - Simulate colorblind vision
 - NoCoffee - Simulate how visual impairments affect website accessibility
 - Funkify - Chrome extension that helps you experience the web and interfaces through the eyes of extreme users with different abilities and disabilities.
 
- Accessible color palette builder
 - Color Safe - Accessible web color combinations
 - Acccessible colours - WCAG 2.0 AA and AAA color contrast checker
 - Contrast ratio - Lea Verou's tool for easily calculate color contrast ratios
 - Colour Contrast Analyser (CCA) - Windows/Mac tool for to determine the legibility of text and the contrast of visual elements, such as graphical controls and visual indicators
 - Jonathan Snook’s Colour Contrast Check - Colour contrast checking tool for both AA & AAA and 18pt+
 - random a11y - Project to try and curate beautiful color palettes that are a11y friendly
 - Colorable - Color palette combination contrast tester
 - Are My Colours Accessible? - Simple contrast checker for normal, bold and large text against AA and AAA
 - Button Contrast Checker
 - Who Can Use - A tool that brings attention and understanding to how color contrast can affect different people with visual impairments
 - Color contrast checker - Analyses and suggests colors that meet the required contrast ratio.
 - The Contrast Triangle - Text, links and background colors must have sufficient contrast from each other
 
- axe-core - Accessibility engine for automated Web UI testing
 - AATT - PayPal's automated accessibility testing tool
 - Pa11y - Pa11y is your automated accessibility testing pal
 - A11y - Web accessibility audits powered by the Chrome Accessibility Developer Tools
 - WorldSpace Comply - Commercial "automated testing tool for performing enterprise-level accessibility audit"
 - AccessLint - Wrapper around axe-core.
 
- Accessibility for Teams - A ‘quick-start’ guide for embedding accessibility and inclusive design practices into your team’s workflow
 - Inclusive Design Checklist - Aims to be the biggest checklist of inclusive design considerations.
 - A11Y Nutrition Cards is an attempt to digest and simplify the accessibility expectations when it comes to component authoring
 - A11Y checklist - A beginner's guide to web accessibility
 - Vox Media - Checklists for project managers and editorial teams as well as developers and designers
 - Opquast Web Quality Checklist
 - The Accessibility Cheatsheet - Summary of WCAG with practical examples
 - 18F Accessibility Guide Checklist
 - Wuhcag - WCAG 2.0 checklists
 - IBM Accessibility Checklist
 - WCAG 2.0 Quick Reference - Not a checklist as such but a good concise reference to the WCAG success criteria
 
See The A11Y Project's list of meetups.
- Inclusive Design Patterns - Coding Accessibility Into Web Design
 - Accessibility for Everyone
 - A Web for Everyone
 
Print these out. Stick them round your office. Educate the world.
- Dos and don'ts on designing for accessibility - 6 posters from gov.uk around designing for accessibility
 - Dos and Don’ts on Designing for Aphasia Accessibility - Aphasia is language loss after stroke and other forms of brain injury.
 - UKHomeOffice posters on GitHub
 - Inclusive Design posters from Barclays
 - Researching access needs: who to include when
 
See a11y-courses.
- WCAG 2.1 Primer - help you get up to speed with WCAG 2.1 quickly and avoid common mistakes people make when creating or updating web content
 - The A11Y project - A community-driven effort to make web accessibility easier
 - Inclusive Design Principles
 - Inclusive Components
 - OATMEAL - Accessibility Testing for the Web
 - Gov.uk accessibility community
 - Making your service accessible: an introduction - Help for making a government digital service that’s as inclusive as possible
 - a11y Slack
 - #topic-accessibility on Design Systems Slack
 - Inclusive Design at Microsoft
 - BBC News Accessibility
 - Facebook Accessibility Toolkit
 - Android accessibility
 - Empathy Prompts - Ideas to help consider Inclusive Design principles when making things for others to use.
 - Game accessibility guidelines - A straightforward reference for inclusive game design
 - Generate an Accessibility Statement
 - AppleVis - A community-powered website for blind and low-vision users of Apple's products
 - Accessible UK Train Timetables
 - Record a goose sighting - a fictional service to use an exercise for training teams about accessibility
 - Shake - The Typeface with Parkinson's - a typeface made from the real handwriting of a person living with Parkinson's Disease
 - How Web Accessibility Works
 - A11y Coffee - Pick your serving size of web accessibility information
 - Cards for Humanity - A practical tool to help you design more inclusively.
 
- Material Design - Acecessibility guidelines from Google's Material Design
 - eBay's Mind Patterns - Accessibility Patterns for the Web
 - React - Implement accessible React apps
 - Shopify - Polaris
 - MailChimp - Writing for Accessibility
 - A11Y Style Guide - A living style guide or pattern library, generated from KSS documented styles...with an accessibility twist
 
- Creating an Accessible Culture
 - Empowering a more accessible and inclusive world
 - Web accessibility is everyone’s job
 - FT - The case for accessibility
 - Designing Slack for everyone
 - Dropbox - Creating a culture of accessibility
 - National Archives - This is for everyone: accessibility and digital
 - Innovating with accessibility in mind
 - Championing Accessibility at the Guardian
 - Tips for making accessibility a core design principle
 - The quest to make Microsoft accessible to its core
 
- Writing HTML with accessibility in mind - An introduction to web accessibility with tips on how to improve your markup
 - Writing JavaScript with accessibility in mind - Improve the accessibility of your JavaScript components
 - Dos and don'ts on designing for accessibility
 - Accessibility according to actual people with disabilities
 - How to Make Your Website Accessible to People Who Use a Screen Magnifier
 - How to make your site accessible for screen magnifiers
 - Disabled buttons suck - A specific article on why you shouldn't use disabled buttons
 - Accessibility for Visual Design
 - Writing Accessible Content - Summary of good and bad practises about writing accessible content
 - Designing accessible products - "A comprehensive visual guide to making web technology available to a diverse world"
 - Writing descriptive alt attributes for images
 - Alt-texts: The Ultimate Guide
 - In Plain Sight: Text, Contrast, and Accessibility - Article from Shopify UX
 - How to create content that works well with screen readers - by Léonie Watson
 - How to structure headings for web accessibility
 - Guidelines for Visualizing Links - From 2004 but still as relevant today
 - A Developer’s Guide to Better Accessibility
 - How to design websites for blind and partially sighted people
 - Podcast Accessibility - How to make your podcast accessible for everyone
 - How to design a website for someone affected by dementia
 - The problem with tooltips and what to do instead
 
- The Power (and Limits) of Automated Accessibility Testing
 - Accessibility Testing with aXe-core and WebdriverJS
 - Introducing AccessLint CI - Automated Web Accessibility Testing
 
- Personas for Accessible UX
 - Diverse Personas
 - What I've learned about motor impairment
 - The Web Should Just Work for Everyone
 - Color Blindness Demonstration Using Coloured Pencils - Simple demonstration, using Coloured Pencils, showing 4 types of Color Blindness
 - Selfish accessibility - Slides from a talk at GDS
 - Reframing Accessibility for the Web
 - How I Audit a Website for Accessibility
 - Ensuring iPlayer is accessible to all
 - Inclusive design toolkit
 - Screen Reader User Survey - Recent survey by WebAIM around screen reader usage
 - Building the most inaccessible site possible with a perfect Lighthouse score - Proving that 100/100 on Lighthouse needs to be taken with a pinch of salt
 - Accessibility Wins - Showcasing accessible user interfaces and tools.
 - The business case for inclusive design
 
- What does User Experience mean when you're blind?
 - Inclusive Design 24 (#ID24) - Videos from the #ID24 event
 - Pragmatic Accessibility: A How-To Guide for Teams - A talk from rob_dodson at Google I/O '17. Aimed at everyone (PMs, UX etc), not just developers!
 - The Velvet Rope - Video of a great talk at NUX5 by Henny Swan about Accessible User Experience
 - YES, your site too can (and should) be accessible - Laura Carvajals (@lc512k) from the FT's talk at JSConf EU 2017.
 
- Conversations around web accessibility
 - 13 Letters - The Accessibility Podcast
 
See The A11Y Project's who to follow or Joe Watkin's "Top People to Follow in Web Accessibility".