Provides support for alpha transparency on foreground colours.Provides multiple ways to set colours such as raw text colours (any valid CSS format), RGB sliders, colour picker (Windows and macOS only).The contrast ratio helps determine whether or not the contrast between two colours can be read by people with colour blindness or other visual impairments.Current support is only for Chrome and Firefox.Ĭolour Contrast Analyser is a free software that helps to determine the accuracy or clarity of the text and the contrast of visual elements.WAVE injects icons to the website when it scans the page.Gives references for each issue, so that you can understand the root cause of the issue and make appropriate changes.
This gives a clear understanding of the issue, easier to locate the element (in which issue is marked) and get it fixed.
Highlights the accessibility issues on the page itself. WAVE is a free web accessibility evaluation tool to determine web accessibility issues of the web via online sessions or by using browser plugins (Chrome and Firefox). Earlier versions had issues with Excel crash/chrome crash while using it, but it is reported that those issues got fixed in the latest release. Only works with Windows (Not compatible with other OS types). NVDA can convert text into braille (if the user has a braille display). For accessibility testing, NVDA is used as one of the manual ways of testing to ensure that the website is made accessible for the blind and visually impaired. This tool reads the text on the computer and thus helps the users. NVDA is a free screen reader that enables blind and visually impaired people to use a computer. Pros and Cons of Open Source Accessibility Testing Tools 1. Let’s review the pros and cons of the commonly used open source accessibility testing tools: There is no right or wrong choice, and it all depends on our needs. Many times we end up choosing multiple tools, since accessibility testing can not always be completed by using just one tool but rather with a combination of tools. Accessibility testing is a relatively extensive field, thus selecting the best tool to validate accessibility testing is not easy. In my previous article, we’ve discussed the importance of accessibility testing.
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