OpenLock vs Questionmark
OpenLock
github.com
Questionmark
questionmark.comSide by side
| Figure | OpenLock | Questionmark |
|---|---|---|
| Price from | — | — |
| Free plan | — | — |
| Free trial | — | — |
| Open source | — | — |
| Web | — | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | Yes | — |
| iOS | — | Yes |
| Android | — | Yes |
| API | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 0 | 2 |
| Spec score · Lockdown Browser Software | 7.2 (#19) | 8.4 (#5) |
Plans
In their own words
OpenLock
OpenLock is a free, open-source lockdown exam browser built natively for Linux. It aims to provide Safe Exam Browser-style controls, but the project states that it is not exam-ready because SEB key derivation is not byte-exact and the LMS handshake currently fails. It parses .seb files and sends Browser Exam Key and Config Key headers, although those keys do not yet match an LMS handshake. Kiosk mode uses fullscreen takeover through X11 or Wayland/Cage. A process guard monitors and terminates prohibited software such as screen recorders, virtual machines, and remote desktop tools. Input controls block shortcuts including Alt+Tab, Alt+F4, Ctrl+C, and PrintScreen, while browser hardening disables developer tools, downloads, right-click, console access, and drag-and-drop. Security measures include URL filtering, cgroups v2 isolation, VM/debugger/hypervisor detection, optional self-hash checks, and an off-the-record profile. Moodle, Canvas, and Blackboard adapters are listed but not validated live.
Questionmark
Questionmark has no write-up on Specifiction yet; its figures are above.