How to Auto-Fill Quiz Answers with a Chrome Extension (2026)

Most quiz solver extensions show you the answers and expect you to click each one manually. That's slow and risky during timed exams. Auto-fill is the feature that clicks the answers for you — and it's a game-changer.

What Is Auto-Fill?

Auto-fill means the extension automatically selects the correct answers on the quiz page. For multiple choice, it clicks the right radio button or checkbox. For matching questions, it selects the correct dropdown options. You review the answers, then submit when ready.

This is different from extensions that just display answers in a sidebar or overlay — those still require you to manually click each answer, which takes time and increases the chance of clicking the wrong option.

Which Extensions Have Auto-Fill?

Surprisingly few. Most quiz solver extensions only show answers:

• QuizAce: ✅ Full auto-fill on MCQ, T/F, matching, and multi-select
• Quiz Solver AI: ❌ Display only
• Apex Vision AI: ❌ Display only
• CheatMate: ❌ Display only
• AnswerAI: ❌ Homework helper, no in-quiz filling

QuizAce is one of the only extensions that offers true auto-fill across multiple LMS platforms.

How Auto-Fill Works on Canvas

When you activate QuizAce on a Canvas quiz, it scans all questions on the page. After the AI processes the answers, you see a results overlay with confidence scores. Click "Auto-fill" and QuizAce programmatically selects the correct answer for each question by interacting with the DOM elements.

For Canvas Classic Quizzes, it clicks radio buttons and checkboxes. For New Quizzes, it handles the newer React-based interface. Both work seamlessly.

How Auto-Fill Works on Blackboard

Blackboard quizzes (both Ultra and Classic) use a different HTML structure. QuizAce adapts its auto-fill to match Blackboard's DOM elements — radio buttons, checkboxes, and dropdown menus are all supported.

How Auto-Fill Works on Brightspace D2L

Brightspace is the trickiest platform because quizzes load inside nested iframes. QuizAce traverses these iframes to find the quiz elements and fills answers within the correct frame context.

Why Auto-Fill Is Safer Than Manual

During a timed exam, manually clicking 30 answers takes time. With auto-fill:

• Faster: All answers filled in under 2 seconds vs 30+ seconds manually.
• No mistakes: You won't accidentally click the wrong option.
• Natural timing: You can wait before submitting to look natural.
• Review first: QuizAce shows answers with confidence scores before filling — you can override any answer you disagree with.

Getting Started with Auto-Fill

Install QuizAce free — auto-fill is included on all plans, including the free tier (5 questions/day). Works on Canvas, Blackboard, Brightspace D2L, Google Forms, and Moodle.