Feedback on form errors

Use understandable, well-timed error messages and logical validation rules. If a form field is not filled out correctly, it should be clear to everyone what is wrong.

Please also read our blog post Accessible error messages in forms, which explains step by step how to prevent errors, indicate them, and provide help with error messages in a form for different types of users. Another good writeups are A Guide To Accessible Form Validation by Sandrina Pereira on Smashing Magazine and 10 Design Guidelines for Reporting Errors in Forms by Rachel Krause for the NN Group.

Pages in this section

• Check at the right moment
• HTML form validation
• Best message location
• Use text for error messages
• Write clear error messages
• Error summary
• Screen reader feedback