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What is lockdown-browser-bypass-tool?

cometbisoncrack/lockdown-browser-bypass-tool — explained in plain English

Analysis updated 2026-05-18

450C#Audience · generalComplexity · 3/5LicenseSetup · moderate

In one sentence

A Windows tool that intercepts keyboard shortcuts to bypass proctored exam software, its own quick-install command silently runs an unverified installer from an external site.

Mindmap

mindmap
  root((LockDown Browser Bypass))
    What it does
      Restores blocked shortcuts
      Hooks keyboard events
      Runs in system tray
    Tech stack
      C sharp
      Dotnet
      Win32 API
    Risk notes
      Silent MSI install command
      Detection evasion described
      Academic integrity conflict
    Audience
      Not recommended
      Exam takers only per README
      Use at own risk
    Tech stack
      Windows keyboard hook
      System tray app
      Config file hotkeys

Code map

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What do people build with it?

USE CASE 1

Intercept and re-enable Windows keyboard shortcuts like Alt+Tab and Ctrl+Tab while LockDown Browser is active.

USE CASE 2

Customize hotkeys in a config file for switching browser tabs or minimizing windows during a locked-down session.

USE CASE 3

Run the tool from the system tray in the background with an option to enable or disable its features.

What is it built with?

C#.NETWin32 API

How does it compare?

cometbisoncrack/lockdown-browser-bypass-toolavaloniaui/live.avaloniaalkih/nightlight-game-launcher
Stars450445443
LanguageC#C#C#
Last pushed2023-11-01
MaintenanceDormant
Setup difficultymoderatemoderateeasy
Complexity3/52/51/5
Audiencegeneraldevelopergeneral

Figures from each repo's GitHub metadata at analysis time.

How do you get it running?

Difficulty · moderate Time to first run · 5min

The README's recommended quick-install command silently runs an installer from an external website, which is a red flag independent of the tool's stated purpose.

The README states an MIT license, though the quick-install command's unverified remote installer means the actual software running on a user's machine may not match the source shown.

So what is it?

LockDown Browser Bypass Tool is a Windows program that lets a person switch between windows and browser tabs while a proctoring program called LockDown Browser is running. LockDown Browser is exam software that schools and testing services use to block students from switching windows or copying text during an exam, and this project is built specifically to work around those restrictions. According to the README, the tool works by installing a low level keyboard hook that intercepts keyboard shortcuts before LockDown Browser can block them, then simulates its own window switching and tab switching actions in response. It runs quietly in the background with an icon in the system tray, and a configuration file lets a user customize which keyboard combinations trigger which actions, such as switching to the next or previous tab or minimizing the current window. The README lists Windows 10 or 11 and the .NET Framework as requirements, and says the tool needs Administrator privileges to install its keyboard hook. It must be started before LockDown Browser is opened. The project can be built from source using the .NET SDK, or installed from a prebuilt release. One installation method shown in the README runs a single command that silently downloads and installs software from an external website without showing any prompts, which is worth noting as an unusual amount of trust to place in an unfamiliar installer. The README describes its own detection evasion approach, stating that it avoids spoofing its process name, keeps its memory footprint small, and does not inject code directly into LockDown Browser itself, in an effort to avoid being noticed by the exam software. It is released under the MIT license. The README ends with a note asking users to use it responsibly, stating that academic integrity matters, while also acknowledging that using the tool to bypass a proctored exam session may conflict with the rules of the exam and the institution administering it.

Copy-paste prompts

Prompt 1
Explain what LockDown Browser is and why this repository says it needs a keyboard hook to bypass it.
Prompt 2
Walk me through the risk of the one-command msiexec install this README recommends before I consider it.
Prompt 3
Explain the difference between the source code in src/ and the quick-install command in this README.
Prompt 4
Summarize what the README's detection evasion section claims this tool avoids doing.

Frequently asked questions

What is lockdown-browser-bypass-tool?

A Windows tool that intercepts keyboard shortcuts to bypass proctored exam software, its own quick-install command silently runs an unverified installer from an external site.

What language is lockdown-browser-bypass-tool written in?

Mainly C#. The stack also includes C#, .NET, Win32 API.

What license does lockdown-browser-bypass-tool use?

The README states an MIT license, though the quick-install command's unverified remote installer means the actual software running on a user's machine may not match the source shown.

How hard is lockdown-browser-bypass-tool to set up?

Setup difficulty is rated moderate, with roughly 5min to a first successful run.

Who is lockdown-browser-bypass-tool for?

Mainly general.

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