WebAssign support

WebAssign Answers for Your Version of the Problem

Every WebAssign problem regenerates its numbers per student — that's what the Practice Another Version button proves. FastSolve's AI works your exact version from a paste or screenshot in about 2 seconds. Native WebAssign support is on the roadmap.

Updated July 2026

Question types

Which WebAssign question types does FastSolve solve?

FastSolve detects the question type automatically and formats the answer for the right input.

FastSolve support by WebAssign question type
Question typeSupported
Numeric & symbolic answersVia paste or screenshot — FastSolve returns the exact value or expression; you enter it in WebAssign's answer box or pad yourselfSupported
Multi-part problems (a, b, c…)Screenshot the whole problem; each part comes back answered with stepsSupported
Graphs, figures & diagramsThe screenshot flow reads visual content with a vision modelSupported
Multiple choice & true/falseFastSolve identifies the correct choice — no auto-click on WebAssignSupported
Interactive graphing toolFastSolve tells you what to plot; you place the points in WebAssign's grapher yourselfNot supported
Native in-page auto-fillNo WebAssign adapter yet — native support is on the roadmapNot supported

Why WebAssign answer keys don't work

WebAssign is Cengage's online homework platform, used mainly for university calculus, physics, chemistry, and statistics courses. Its defining feature is per-student randomization: most questions are generated from a template that swaps in different numbers for each student, and the Practice Another Version button regenerates your own values on the spot. That single design choice is why searching for WebAssign answers turns up so little that's usable — any posted answer key was worked from a different draw of the numbers.

Chegg and Course Hero uploads, Reddit threads, and shared PDFs all hit the same wall: the question shape matches, the final answer doesn't. At best a posted solution shows you the method, and you still have to redo the arithmetic with your own values. An AI solver flips the approach — instead of looking your problem up, FastSolve works the exact problem on your screen, with your numbers, and shows the steps.

Getting past WebAssign's answer-entry quirks

Getting the right value is half the job on WebAssign; entering it acceptably is the other half. Numeric answers are graded against a tolerance your instructor configures, many chemistry questions additionally grade significant figures, and physics questions can require units alongside the number. Symbolic questions use WebAssign's math-entry pad, which is strict about form — an unsimplified but equivalent expression can be marked wrong.

FastSolve's worked steps help precisely here: the answer comes back as an exact value plus the reasoning, so you can enter the exact form when the question demands it or round to the requested precision when it doesn't. Most questions allow several submissions per part — the remaining-attempts counter sits under the answer box — so an entry slip usually costs one attempt, not the assignment.

Native WebAssign support: where it sits on the roadmap

FastSolve ships native in-page adapters for Canvas, Blackboard, Moodle, Brightspace, ALEKS, Schoology, Knewton, Learnosity, and DeltaMath — on those platforms the extension detects the question in the page and fills the answer directly. WebAssign's own question player doesn't have a native adapter yet, so this page describes the paste and screenshot workflow honestly rather than pretending otherwise.

Native WebAssign support is on the FastSolve roadmap. Until it ships, the paste and screenshot flow covers WebAssign problem sets — including figure-based physics and chemistry questions — with the same solving engine, powered by Claude and GPT-4o, that the native platforms use.

How it works

How do you use FastSolve on WebAssign?

  1. 1

    Install the FastSolve Chrome extension

    Add FastSolve from the Chrome Web Store and sign in. The free tier includes 10 solves a day with no credit card required, and it runs in Chrome, Edge, Brave, or Arc.

  2. 2

    Open the WebAssign question

    Open the assignment so the full problem — including any figure and your randomized values — is visible on screen.

  3. 3

    Paste or screenshot it into FastSolve

    Copy the problem text or capture a screenshot. FastSolve reads it — notation, figures, and every lettered part — and returns the worked answer with steps in about 2 seconds.

  4. 4

    Enter the answer in WebAssign yourself

    Type the value into the answer box or build the expression in WebAssign's math pad, matching what the question asks for — exact form, significant figures, or units. FastSolve never touches the WebAssign page.

Illustration: FastSolve highlighting the detected answer on a WebAssign quiz question
FastSolve detects the question and highlights the answer — illustration.

Social proof

What students say about FastSolve

FastSolve works across WebAssign and every major LMS. These are verbatim reviews from its Chrome Web Store listing.

Rated 5 out of 5 stars
I've been using FastSolve Chrome Extension for a bit now and honestly it's super fast and really easy to use. You literally just double click a question and it gives you an answer almost instantly, which is kinda crazy. It works on a lot of different types of questions too, not just multiple choice. What I like most is how lightweight it is; it doesn't slow down my browser at all and everything feels smooth. The answers are usually accurate and helpful, especially when I'm stuck or just need a quick explanation.
Saira Channa

Chrome Web Store review

Rated 5 out of 5 stars
This extension actually surprised me. I installed it just to try it out and it solved a few homework questions instantly.
Brain Jack

Chrome Web Store review

Rated 5 out of 5 stars
Dope tool! Easy peasy to use and pretty quick. Faster than using co-pilot for Edge as well.
Andre Green GP

Chrome Web Store review

Questions solved
50,000+
Average accuracy
98%
Average response time
< 2s

Pricing

How much does FastSolve cost for WebAssign?

Start free with 10 solves a day. Upgrade to Pro for unlimited solves across WebAssign and every supported LMS.

FastSolve pricing plans for WebAssign
PlanPriceWhat you get
Free$010 solves per day — no credit card required.
Pro$9.99/week · $19.99/month · $99/yearUnlimited solves, every question type, and dual-AI routing.

Invisible mode

What proctors and WebAssign can — and can't — see

  • FastSolve never touches the WebAssign page — no injected overlay, no filled inputs, no simulated clicks. Screenshare shows only WebAssign.

  • WebAssign records submitted answers, attempt counts per part, and timestamps — it doesn't scan your browser extensions, record your screen, or use a webcam.

  • Answer-dump sites can't cover WebAssign because each student's values are randomized; FastSolve works your version instead of looking it up.

FAQ

FastSolve on WebAssign: FAQ

Yes, via paste or screenshot — not natively yet. Copy the WebAssign problem text or capture it as a screenshot, and FastSolve returns the worked answer with steps in about 2 seconds; you enter it in WebAssign's answer box yourself. FastSolve doesn't currently detect or fill WebAssign questions in the page the way it does on Canvas or ALEKS — native WebAssign support is on the roadmap.

Nowhere reliable — and that's by design. WebAssign builds most questions from a randomized template, so your version has different numbers from your classmate's, and the Practice Another Version button regenerates them again on demand. A solution posted to Chegg, Course Hero, or a shared PDF was worked with someone else's values, so its final answer won't match yours. The dependable route is solving your version: FastSolve reads the exact problem on your screen and works it with your numbers.

Usually it's entry format, not math. WebAssign grades numeric answers against a tolerance the instructor sets, many chemistry questions grade significant figures, physics answers can require units, and symbolic answers entered in the math pad must be in the expected form. FastSolve's worked steps show the exact, unrounded value — enter that form (or round only as the question directs) and add parentheses generously in the pad.

FastSolve advertises 98% accuracy overall, powered by Claude and GPT-4o, and shows the worked steps with every answer so you can sanity-check the result before entering it. Most WebAssign questions also allow several submissions per part — the counter under the answer box tells you how many — so you can verify against WebAssign's feedback without burning the assignment.

WebAssign records what it always records: every submission, the attempt count on each part, and timestamps. It's a homework system, not proctoring software — it doesn't scan your browser extensions, record your screen, or use a webcam. FastSolve never touches the WebAssign page; you read the answer in the extension and type it in yourself, so nothing is added to what WebAssign logs. The exception is tests your school delivers through Respondus LockDown Browser, which disables all Chrome extensions.

No. Canvas, Blackboard, Moodle, Brightspace, ALEKS, Schoology, Knewton, Learnosity, and DeltaMath have native FastSolve adapters that detect and fill answers in place. WebAssign doesn't have one yet — on WebAssign you paste or screenshot the problem, FastSolve returns the worked answer, and you enter it yourself. Native WebAssign support is on the roadmap.

FastSolve is a study aid — use it to check your answers, understand the worked steps, and get unstuck on problem sets. It isn't a licence to break your school's academic-integrity policy, and submitting work you didn't produce on graded WebAssign assignments can be treated as misconduct. Check your course's rules before using any AI helper on graded work, and take responsibility for how you use the answers.