AI Overlay for CodinGame for Work on Mac
CodinGame for Work (now part of CoderPad) is the game-style coding assessment that European tech employers and a growing list of US engineering teams use to screen candidates. The challenges are scenario-based (build the AI for a tower defense, optimize a logistics graph) rather than pure LeetCode.
CodinGame was founded in 2012 by Frederic Desmoulins, Nicolas Antoniazzi, and Aude Barral in Montpellier, France. CoderPad acquired the company in October 2021 and now sells the combined product as CodinGame for Work. The platform measures problem-solving and system thinking through game-style challenges rather than algorithm puzzles. The proctoring posture is notably lighter than Codility or HackerRank: there is no audio or video proctoring of candidate movement, no image proctoring, and no screen recording.
Key points
- CodinGame does not capture webcam or screen video by default. The overlay has nothing to be invisible to on the visual side.
- Code Playback replays your typing timeline. Type your code yourself, in human bursts; do not paste large blocks from the overlay.
- Tab-leave events appear in the playback as candidate exited the environment.
- Plagiarism detection compares your code to other CodinGame submissions and to known web sources.
- Question variants are randomized per candidate, so leaked answers from another candidate are not reusable.
- Live coding interviews happen in CoderPad, not CodinGame for Work.
How it works
┌── macOS host ─────────────────────────────────┐ │ ┌── Safari/Chrome ─────────────┐ │ │ │ ┌── proctoring extension ─┐ │ │ │ │ │ Browser screen-capture │ │ ← reads │ │ │ │ → exam recording │ │ visible │ │ │ └─────────────────────────┘ │ pixels │ │ └──────────────────────────────┘ │ │ │ │ ┌── LDBypass overlay ──────────┐ ← rendered │ │ │ ChatGPT / Claude / Ollama │ excluded │ │ └──────────────────────────────┘ from cap │ └───────────────────────────────────────────────┘
Compatibility on Mac
| macOS 14 Sonoma+ | Yes (required for window-privacy API) | ✓ |
| Apple Silicon (M1/M2/M3/M4) | Native arm64 build | ✓ |
| Intel Macs (2019+) | Universal binary supported | ✓ |
| CodinGame for Work tests | Browser-only, no screen recording by default | ✓ |
| Code Playback feature | Tracks typing, paste, and tab events in-browser | ✓ |
| Practice mode (codingame.com) | Unproctored, overlay irrelevant | ~ |
Common questions
Will Code Playback reveal that I used the overlay?
Code Playback records what happened inside the browser editor: keystrokes, pastes, and environment exits.
Does CodinGame have webcam proctoring?
Not by default. CodinGame for Work explicitly does not include audio, video, or image proctoring.
Is pasting from the overlay safer on CodinGame than on HackerRank?
Pasting is logged in Code Playback either way. Type your code rather than pasting it.
What if I take too long on a CodinGame challenge while reading the overlay?
Time per task is a behavioral signal but not a fail condition.
Does CoderPad (the live interview product) work the same way?
CoderPad live interviews use WebRTC screen-share, which on macOS honors window-level privacy.