Ofradr is an invisible AI-powered screen overlay assistant designed for coding interviews and proctored exams. It's completely undetectable by screen sharing, recording, and proctoring software.

Yes, Ofradr Community Edition is completely free. Unlike Cluely ($20/month) or Interview Coder ($19/month), Ofradr offers full functionality at no cost.

Does Ofradr work with proctoring software?

Yes, Ofradr is invisible to all major proctoring software including ProctorU, Proctorio, HonorLock, ExamSoft, Safe Exam Browser (SEB), Mercer Mettl, and more.

Is Ofradr better than Cluely?

Yes, Ofradr offers better stealth technology (native C++ vs Electron), smaller size (800KB vs 50MB+), offline support, and it's free compared to Cluely's $20/month pricing.

Can Ofradr be detected during Zoom screen share?

No, Ofradr's native overlay technology is invisible to Zoom screen sharing, Microsoft Teams, Google Meet, and all video conferencing platforms.

Does Ofradr work with HackerRank and LeetCode?

Yes, Ofradr works perfectly with HackerRank, LeetCode, CodeSignal, CoderPad, Codility, and all other coding assessment platforms.

Can Ofradr bypass Safe Exam Browser (SEB)?

Yes, Ofradr's system-level overlay works alongside Safe Exam Browser without detection. It's the only AI assistant that truly bypasses SEB lockdown.

Does Ofradr work offline?

Yes, Ofradr supports local AI models like Llama and Mistral for completely offline operation. No internet connection required, and your data never leaves your machine.

Best HackerRank Interview Helper Tools 2025 - AI Coding Assistant

HackerRank is one of the most popular coding assessment platforms. Here's how to get AI assistance during HackerRank interviews without detection.

HackerRank's Detection Methods

Tab switching detection
Copy-paste monitoring
Screen recording in proctored tests
Webcam monitoring

Why Ofradr is Perfect for HackerRank

Never triggers tab-switch alerts - stays on same screen
Type solutions directly - no copy-paste needed
Invisible to screen recording
Screenshot problems for instant AI solutions

Using Ofradr with HackerRank

HackerRank powers a huge share of hiring assessments and live interviews. Ofradr helps you solve its problems while its proctoring runs.

Specifically, Ofradr helps you on HackerRank by letting you:

Capture HackerRank problems and get clear solutions
Handle data-structure, SQL, and domain-specific tracks
Get explanations you can reproduce in your own code
Work through tricky constraints and edge cases

Why Ofradr is invisible on HackerRank

Ofradr renders as a native system-level overlay rather than a window or browser tab, so it is not part of the HackerRank editor and any screen share on top of it. Whoever is watching sees a clean, focused screen while your assistance stays private.

The overlay toggles instantly with a hotkey and is only ~800KB, so it stays responsive even during a live, time-pressured HackerRank session.

Getting the most out of HackerRank sessions

Combine the tool with good habits so your performance looks natural:

Talk through your reasoning out loud as you work.
Type solutions yourself instead of pasting them wholesale.
Use hints to unblock, then refine the code in your own words.
Keep Ofradr in offline mode when you need everything on-device.

Frequently Asked Questions

Can HackerRank detect Ofradr during screen share?

No. Ofradr is a native overlay that is not captured by HackerRank screen sharing or recording, so the interviewer or proctor cannot see it.

Is Ofradr free to use with HackerRank?

Yes. The Ofradr Community Edition is free, with no subscription required to use it during HackerRank sessions.

Does Ofradr slow down HackerRank?

No. At roughly 800KB with a native overlay, Ofradr has a negligible footprint and stays responsive even on long HackerRank calls.

Try Ofradr Free

Best HackerRank Interview Helper Tools in 2025