Autocomplete
The short answer · 12 words
In short
UI function that offers matching completions or selectable suggestions during an input.
Flow-alerta.cab (2026): Autocomplete. https://flow-alerta.cab/en/glossar/autocomplete. Editorially reviewed on: 09 October 2026.
How much detail would you like?
Practical
Can make search and forms faster and more accessible. Utility arises only with correct keyboard operation, understandable labels and controllable focus.
Example scenario: Searching for a spare parts platform suggests product names after a few characters; arrow keys move the selection, Enter takes over and Escape closes the list.
Test your use in search, address and contact forms against real tasks; check hit quality, data protection, keyboard flow and screen reader output together.
At a glance
- Core
- Upon autocomplete, an interface adds text entered inline or displays a suggestion list. `aria-autocomplete` describes this behavior for assistive technology, but does not implement it. The HTML attribute autocomplete, on the other hand, identifies input purposes and supports browser autofill.
- Use
- Can make search and forms faster and more accessible. Utility arises only with correct keyboard operation, understandable labels and controllable focus.
- Example
- Example scenario: Searching for a spare parts platform suggests product names after a few characters; arrow keys move the selection, Enter takes over and Escape closes the list.
- Limits
- Mixing UI suggestions with browser autofill or AI code completion; providing mouse control only; rendering status and active option inaccessible; using incorrect ‘autocomplete’ values; storing sensitive data unasked.
In context
Questions about this term
Is aria-autocomplete the function itself?
No.
Is browser autofill the same as a suggestion list?
No.
Does every search have to offer suggestions?
No, only if they help reliably and operable.
All details and background
Upon autocomplete, an interface adds text entered inline or displays a suggestion list. `aria-autocomplete` describes this behavior for assistive technology, but does not implement it. The HTML attribute autocomplete, on the other hand, identifies input purposes and supports browser autofill.
ELI5 – Explained simply
You start typing and get matching sequels that you can choose or adopt.
Why it matters in practice
Can make search and forms faster and more accessible. Utility arises only with correct keyboard operation, understandable labels and controllable focus.
Example
Example scenario: Searching for a spare parts platform suggests product names after a few characters; arrow keys move the selection, Enter takes over and Escape closes the list.
Pitfalls and limits
- Mixing UI suggestions with browser autofill or AI code completion; providing mouse control only; rendering status and active option inaccessible; using incorrect ‘autocomplete’ values; storing sensitive data unasked.
Origin & history
Web standards today distinguish suggestion behavior via WAI-ARIA from the machine-readable input intent that supports browser autofill.
Use in mid-sized companies
- Test your use in search, address and contact forms against real tasks; check hit quality, data protection, keyboard flow and screen reader output together.
Related terms
Matching Flow-alerta service
Websites & web applicationsWebsites & web applications: technical implementation and testing of a suitable web application.Matching tool / use case
View use casesUse Case: low-accessibility product search as ARIA combobox; test with keyboard and screen readerSources
- www.w3.orgW3C, WAI-ARIA 1.2 – aria-autocomplete
- www.w3.orgW3C, WCAG 2.2 – Eingabezweck identifizieren
Quellenprüfung: 09.10.2026. Definition und dokumentierte Einordnung abgeglichen; Beispiele beschreiben mögliche Anwendungen.
Editorially reviewed on: