Stop paying for Canvas + McGraw-Hill.
Free, open-source Chrome extension. Anti-detection on any LMS, prior-answer autofill, per-question AI solver for Canvas Classic + New Quizzes, and a full McGraw-Hill SmartBook autosolver. Everything the paid extensions do, in one place, with zero paywalls.
No signup. No API key needed for privacy or SmartBook. v4.0.0
The free alternative to every paid LMS extension.
Canvas Open combines the anti-detection of Canvas Hack, the AI solver of Canvas Toolkit, and the McGraw-Hill autosolver of Bypassify into a single free, open-source extension. No subscriptions, no lifetime fees, no accounts.
Built with Manifest V3. Works on Canvas Classic + New Quizzes, McGraw-Hill SmartBook, and any site that tries to detect focus loss. Lightweight at ~110KB with zero external dependencies and zero data collection.
Everything you need. Nothing you don't.
Every feature included — no tiers, no upgrades, no upsells.
Privacy Guard
Blocks focus, visibility, and tab-switch detection on Canvas and any other LMS. Layered protection that self-heals if the page tries to override it.
Multi-Provider AI
Four providers with three cost tiers each: OpenAI (GPT-5.6 Sol / Terra / Luna), Claude (Opus 5 / Sonnet 5 / Haiku 4.5), Gemini (3.1 Pro / 3.6 Flash / 3.5 Lite), and OpenRouter for 200+ models. Bring your own key.
Canvas New Quizzes
Per-question AI pill on every New Quizzes item. Solves multiple choice, categorization, ordering, matching, hotspot, fill-in-the-blank, numerical, and essay — all handled correctly for each type.
McGraw-Hill SmartBook
Full autosolver for McGraw-Hill Connect SmartBook. Uses your existing ChatGPT, Claude, or Gemini web subscription — no API key needed. Loops until the assignment is done.
Prior-Answer Autofill
If you've taken a Canvas quiz before, hover any question to see your best previous answer auto-filled. All 10 Canvas question types supported.
Right-Click Images
Right-click any diagram, chart, or figure and queue it as visual context for your next AI answer. Great for physics, chemistry, and any image-based problem.
Canvas Open vs. the paid alternatives.
Same features. More features. Zero cost.
| Feature | Canvas Hack | Canvas Toolkit | Bypassify | Canvas Open |
|---|---|---|---|---|
| Price | $14.99/mo | Paid tiers | Subscription | Free forever |
| Open Source | ✕ | ✕ | ✕ | ✓ |
| Anti-detection (tab switch, focus) | ✓ | ✓ | ✕ | ✓ |
| Prior-answer autofill | ✓ | ✕ | ✕ | ✓ |
| Canvas Classic AI solver | ✕ | ✓ | ✕ | ✓ |
| Canvas New Quizzes solver | ✕ | ✓ | ✕ | ✓ |
| McGraw-Hill SmartBook autosolver | ✕ | ✕ | ✓ | ✓ |
| Multi-provider AI (OpenAI + Claude + Gemini + OpenRouter) | ✕ | ✕ | ✕ | ✓ |
| Bring your own API key | ✕ | ✕ | ✕ | ✓ |
| Model tier selector (Strong / Medium / Cheap) | ✕ | ✕ | ✕ | ✓ |
| Right-click image → attach to AI | ✕ | ✓ | ✕ | ✓ |
| AI Trojan protection | ✓ | ✕ | ✕ | ✓ |
| Kiosk Mode | ✕ | ✕ | ✕ | ✓ |
| Zero accounts, zero telemetry | ✕ | ✕ | ✕ | ✓ |
Up and running in 30 seconds.
Download & Unzip
Click "Download .zip" above and unzip the file. You'll get a CanvasOpen folder.
Load in Chrome
Go to chrome://extensions, turn on Developer mode (top-right toggle), click "Load unpacked", and select the CanvasOpen folder.
Configure & Go
Click the extension icon, pick your AI provider, paste your API key, and toggle on the features you want. Done.