OpenLock

Input—per 1M tokens

Output—per 1M tokens

Context—tokens

WeightsClosed

About

OpenLock is ranked #6 of 19 in lockdown browser software on Inferse. It runs on Linux.

Compared on lockdown browser software

Free plan: Yesgithub.com
Supported platforms: Linuxgithub.com
Blocks app switching: Yesgithub.com
Blocks copy and printing: Yesgithub.com
Blocks screen capture: Yesgithub.com

Facts

Purpose: OpenLock is an open-source lockdown exam browser for Linux intended to bring Safe Exam Browser style exam lockdown to Linux distributions.github.com · 30 Sept 2026
Exam status: The project says it is not exam-ready because its SEB key derivation is not byte-exact and has not been validated against a live LMS.github.com · 30 Sept 2026
SEB protocol: It parses .seb configuration files and attaches Browser Exam Key and Config Key headers to requests, but the project says these keys currently will not match an LMS handshake.github.com · 30 Sept 2026
Kiosk mode: Its kiosk mode uses fullscreen takeover via X11 override-redirect or a Wayland/Cage compositor.github.com · 30 Sept 2026
Process protection: A process guard monitors and kills prohibited processes such as screen recorders, virtual machines and remote desktop software.github.com · 30 Sept 2026
Input restrictions: Input lockdown blocks shortcuts including Alt+Tab, Alt+F4, Ctrl+C and PrintScreen, as well as clipboard use.github.com · 30 Sept 2026
Browser restrictions: Browser hardening disables DevTools, View Source, downloads, right-click, console and drag-and-drop.github.com · 30 Sept 2026
Integrity checks: The project lists VM, debugger and hypervisor detection, plus optional self-hash verification, as security measures.github.com · 30 Sept 2026
Navigation controls: OpenLock supports URL whitelist and blacklist filtering and navigation policy enforcement.github.com · 30 Sept 2026
LMS integrations: The project lists adapters for Moodle, Canvas and Blackboard, but says it has not been tested against live instances of those LMS platforms.github.com · 30 Sept 2026
Data handling: The security model specifies an off-the-record browser profile with no persistent storage and permissions denied by default.github.com · 30 Sept 2026
Linux requirements: The stated prerequisites include Ubuntu 22.04 or later, Fedora 38 or later, or Arch Linux, along with Qt6 and QtWebEngine.github.com · 30 Sept 2026
Distribution packaging: AppImage, .deb, .rpm and Flatpak packaging are listed as planned rather than available releases.github.com · 30 Sept 2026
License: The repository says the project follows the Mozilla Public License 2.0 and allows proprietary use if modifications to MPL-licensed files remain open.github.com · 30 Sept 2026
Native Linux app: It is built natively for Linux rather than through a compatibility layer.github.com · 30 Sept 2026
Process guard: It monitors and kills prohibited processes such as screen recorders, virtual machines and remote-desktop tools.github.com · 30 Sept 2026
Input lockdown: It blocks escape shortcuts including Alt+Tab, Alt+F4, Ctrl+C and PrintScreen and restricts clipboard use.github.com · 30 Sept 2026
Browser hardening: It disables developer tools, view source, downloads, right-click, console access and drag-and-drop.github.com · 30 Sept 2026
Security model: Its security model uses cgroups v2 process isolation, input capture, an off-the-record browser profile, denied permissions and URL filtering.github.com · 30 Sept 2026
Supported distributions: The documented prerequisites include Ubuntu 22.04 or newer, Fedora 38 or newer and Arch Linux.github.com · 30 Sept 2026
Current limitation: The repository states that OpenLock is not exam-ready because its SEB key derivation is not yet byte-exact and the LMS handshake fails.github.com · 30 Sept 2026
Validation status: The project has not been validated against a live Moodle, Canvas or Blackboard instance.github.com · 30 Sept 2026
Contribution support: The maker welcomes contributions and asks contributors to open an issue before making changes.github.com · 30 Sept 2026