Alternatives & comparisons
Respondus LockDown Browser Alternatives for the AI Cheating Era
Respondus locks the browser well. But browser lockdown is one layer of a multi-layer problem. Invisible overlays, on-device LLMs, and remote-access tools all live outside the browser. Here is what fills that gap in 2026.
What Respondus Does Well
Respondus LockDown Browser is the dominant lockdown browser with deep LMS integration (Canvas, Blackboard, Moodle). It reliably controls one browser window: blocks tabs, disables copy-paste, suppresses notifications, prevents navigation outside the exam. It does these things well and at scale.
The Architectural Limit: One Window on a Multi-Process Machine
Respondus is one process. The candidate's OS runs dozens. Everything outside that window — invisible overlays, remote-access tunnels, local language models, second-monitor content — is outside Respondus's visibility.
This isn't a bug in Respondus. It's the architectural boundary of any application-layer tool. Bypasses are widely shared online precisely because the attack surface sits outside the browser.
What Changed in 2025–2026
The threat moved below the browser. Cluely is an OS-layer overlay that marks itself invisible to screen-capture APIs — Respondus cannot see it because Respondus operates at the browser layer. Local LLMs (Ollama, LM Studio) run in process memory with no outbound traffic. InterviewCoder, Pluely, and open-source forks are the same architecture. None of these leave a trace in the browser.
Comparison: Respondus vs. Network-Layer Enforcement
These tools address different layers. Neither is a complete solution on its own.
| Capability | Respondus LockDown Browser | Aiseptor (Network Layer) |
|---|---|---|
| Tab blocking and browser lockdown | Yes | No (complementary) |
| Invisible AI overlays (Cluely, Pluely) | No | Yes |
| On-device LLMs (Ollama, LM Studio) | No | Yes |
| BYOD — no admin installation required | No | Yes |
| Process-rename / binary-obfuscation resistance | No | Yes |
The Honest Answer: Different Layers, Not a Replacement
Respondus = application layer. Aiseptor = network + device layer. They address different attack surfaces. For a high-stakes assessment in 2026, both layers matter.
Use Respondus for tab control and browser lockdown if your LMS requires it. Use Aiseptor for the device and network surface Respondus architecturally cannot reach.
See also: Honorlock alternatives
Deployment: 30 Seconds, No Admin Rights, Any Device
Aiseptor deploys as a user-space process — no kernel driver, no IT ticketing, no managed-device requirement. A candidate on their personal MacBook can be in a compliant session in 30 seconds. From $3 per session.
Frequently Asked Questions
Does Respondus LockDown Browser block Cluely?
No. Cluely is an OS-layer overlay that marks itself invisible to screen-capture APIs. Respondus operates at the browser layer and cannot see processes running outside its own window. This is an architectural limitation, not a detection gap — no browser-layer tool can see an OS-layer overlay.
Can Respondus detect AI cheating tools like Ollama or LM Studio?
No. Local LLMs run entirely in device memory with no outbound network traffic. Respondus has no visibility outside the browser process, so it cannot detect, flag, or block local AI inference.
What is the best alternative to Respondus LockDown Browser?
For browser lockdown specifically, Respondus is the established option for LMS-integrated environments. For the AI cheating threats that Respondus architecturally cannot address — invisible overlays, on-device LLMs, remote-access tools — network-layer enforcement is the complementary layer.
Does Respondus work on Chromebooks?
Respondus LockDown Browser has Chromebook support, though feature parity with Windows/Mac varies. Aiseptor runs on Windows and macOS without requiring managed device enrollment.
Run a free session with network-layer enforcement
5 sessions free, no credit card. See what Respondus architecturally cannot reach — blocked in the audit log before the exam starts.