WebAssign is the graded homework and quiz platform behind most introductory calculus, physics, chemistry, and statistics courses at American universities — and how to cheat on WebAssign is searched thousands of times a week by students who hit a wall on a randomized problem set with a hard deadline. WebAssign questions use different numbers for every student, submit directly to your professor's gradebook, and expire on a timer — which means sharing answers with classmates rarely works. CaptureAI is a Chrome extension built for exactly this situation. Press Ctrl+Shift+X, drag over any WebAssign question, and a step-by-step AI answer appears in a floating panel directly on top of the page — no new tab, no copy-paste, nothing visible outside the WebAssign window.
What WebAssign Is and Why It Is So Difficult
WebAssign is a graded assignment platform built for math and science courses and used at thousands of colleges and universities across the US. Calculus professors assign multi-step differentiation and integration problems; physics instructors use it for mechanics and electromagnetism problems; chemistry courses use it for stoichiometry and equilibrium calculations; statistics courses use it for probability and data analysis.
Here is what makes WebAssign hard to beat:
- Randomized values — every student gets different numbers, so a friend's answer is wrong for your version of the problem
- Multi-part questions — a single problem can have four or five sub-parts, each depending on the previous answer
- Timed quizzes — many instructors set a countdown that closes the quiz automatically when it runs out
- Attempt limits — WebAssign tracks how many times you submit each question; too many wrong answers can lower your score
- No searchable results — WebAssign questions are not indexed online, so searching the problem text returns nothing useful
For a comparison with a similar STEM platform, see how to get AI answers on McGraw-Hill Connect.
How CaptureAI Works on WebAssign
CaptureAI captures a region of your screen, reads the text from your screenshot on your own computer — the image almost never leaves your device — then sends that text to an AI that figures out exactly what is being asked and writes a clear, step-by-step answer. The answer appears in a floating panel directly on top of WebAssign. You never open a new tab, type into a search bar, or touch the clipboard.
Because CaptureAI works from your screen rather than inside the WebAssign website, it does not interact with WebAssign's servers at all. From WebAssign's side, your session looks exactly like a normal student working through problems.
For a full walkthrough of how this process works from screenshot to answer, read how CaptureAI works.
Step-by-Step: Using CaptureAI on WebAssign
Setting Up
- Install CaptureAI from the Chrome Web Store
- Activate your license at captureai.dev/activate — your license key arrives by email right after purchase
- Open WebAssign in Chrome and navigate to your assignment or quiz
- If you are on a Pro plan, turn on Privacy Guard in the extension settings before you start — this stops scripts that detect study tools from flagging your session
During the Assignment
- When a question loads, press Ctrl+Shift+X
- Drag to cover the full question — include all given values, answer choices, diagrams, and sub-questions visible on screen
- Wait 2–3 seconds for the floating answer panel to appear
- Read the step-by-step answer, then enter it into WebAssign
- Click outside the floating panel to close it and move to the next question
Speed tip: After your first capture, press Ctrl+Shift+F (Quick Capture) to repeat the last capture area instantly without redrawing — useful when multiple questions appear in the same screen position throughout a quiz.
Stealth tip: Press Ctrl+Shift+E to collapse the answer panel instantly and leave your screen looking completely clean.
Subject-Specific Tips for WebAssign
Calculus and Algebra
WebAssign calculus problems often involve multi-step differentiation, integration, limits, and series problems where the setup matters as much as the final answer. Capture the full problem including every function, variable, and boundary condition shown on screen. The AI shows the complete solution method — not just the final answer — so you can see which rule it is applying at each step.
For problems that include a graph or coordinate diagram, include the graph in your capture area. The AI reads the axes, labels, and any plotted functions and uses them in its reasoning.
Physics
WebAssign Physics problems typically give you a scenario with several known values and ask you to find one unknown. Capture the entire problem including every number, unit, and any diagram shown. The AI identifies the correct formula — kinematics, Newton's laws, energy conservation, Ohm's law, and others — substitutes the given values, and shows the unit analysis step by step.
For multi-part physics problems, capture the whole question at once so the AI sees all parts together and can carry intermediate results between sub-parts correctly.
Chemistry
WebAssign Chemistry covers stoichiometry, equilibrium, thermodynamics, acid-base calculations, and electrochemistry. Capture the full problem including any chemical formulas, reaction equations, and given concentrations or pressures. The AI identifies the correct method — mole ratio calculation, ICE table, Henderson-Hasselbalch equation, or Nernst equation — and walks through each step in plain language.
For problems with a molecular structure or reaction equation written on screen, include the full equation in your capture area. The AI reads the element symbols and coefficients and works through the balancing or completion accordingly.
Statistics
WebAssign Statistics problems involve probability distributions, hypothesis tests, confidence intervals, and regression. Capture the complete problem including all sample data, test conditions, and the question being asked. The AI identifies the correct approach, sets up the calculation, and gives the final answer with a clear explanation of what each step means.
For additional strategies that apply across all quiz platforms, read the complete AI homework helper guide.
Plans and Pricing
CaptureAI has a free tier and two paid plans:
- Free — captures and AI answers included; standard AI models; medium-accuracy reasoning (the default on all plans)
- Basic — $1.99/week or $5.99/month; unlocks advanced AI models and custom instructions
- Pro — $3.49/week or $9.99/month; adds Privacy Guard, Auto-Solve Mode, Ask Mode, low-accuracy reasoning (fastest), and high-accuracy reasoning (most accurate)
For WebAssign STEM courses where numeric answers are graded instantly and attempt limits apply, the Pro plan's high-accuracy reasoning mode is worth turning on — it takes a few extra seconds but produces the most precise step-by-step solutions.
For a full breakdown of which plan works best for different situations, read the best AI tools for online exams.
Start Using CaptureAI on WebAssign Today
Getting set up takes less than two minutes:
- Install CaptureAI — free to start, no credit card required for the free tier
- Open WebAssign in Chrome and navigate to your assignment
- Press Ctrl+Shift+X, drag over your first question, and read the answer in the floating panel
The answer appears in about two seconds. You stay on the WebAssign page the whole time — no tab switching, no alerts, no trace.
If you also use Canvas to submit assignments or access your WebAssign links, read how to use AI on a Canvas quiz for tips that apply to both platforms.
Install CaptureAI today at captureai.dev/download and stop letting randomized numbers block your grade.