ChainBreaker.eu
Block distracting websites and apps on Windows, set usage limits, and cement your rules to make impulsive changes harder. Includes a 7-day free trial.
Block distracting websites and apps on Windows, set usage limits, and cement your rules to make impulsive changes harder. Includes a 7-day free trial.
This page is designed to help you find out whether ChainBreaker.eu is good and if it is the right choice for you.
ChainBreaker is a Windows self-control app that helps you follow through on decisions made in advance. Block distracting websites and applications, set daily, weekly or monthly usage limits, and schedule computer and Internet restrictions.
Its distinctive feature is Cementing: after explicit confirmation, you can lock individual rules against casual editing, disabling or deletion. Releasing a cemented rule requires a separate deliberate action and a one-time micropayment, adding friction between an impulse and abandoning your commitment.
Additional tools include scheduled shutdown or sleep, grayscale, brightness reduction and blue-light filtering.
Activity statistics stay on your device. Online services support trial activation, licensing, payments and cemented-rule management.
ChainBreaker includes a 7-day free trial and is available through a one-time purchase.
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Cemented Commitments
Lock individual rules after explicit confirmation to prevent casual editing, disabling or deletion.
Deliberate Rule Release
Releasing a cemented rule requires a separate confirmation and a one-time micropayment.
Website Blocking
Block selected distracting websites using domain-based rules.
Application Blocking
Block selected Windows applications by their executable paths.
Website Allowlist
Allow selected websites while restricting other Internet access, subject to system exceptions and higher-priority rules.
Website Schedules
Schedule website blocking or access windows for selected weekdays or a specific date.
Application Schedules
Block selected applications during recurring weekly intervals or on a specific date.
Website Usage Limits
Set daily, weekly or monthly limits for selected websites.
Application Usage Limits
Set daily, weekly or monthly limits based on an application's foreground usage.
Computer Usage Limits
Set daily, weekly or monthly boundaries for active computer use.
Browser Usage Limits
Use active time in supported foreground browsers as the basis for a usage limit.
Flexible Usage Counters
Choose the relevant website, browser or computer activity counter for supported limits.
Strictest Counter Mode
Trigger supported limits using the greatest selected activity counter, without double-counting overlapping time.
Idle Time Detection
Exclude keyboard and mouse inactivity lasting more than five minutes from computer and browser usage counters.
Automatic Limit Resets
Reset usage allowances daily, weekly on Monday, or at the start of each month.
Recurring Weekly Schedules
Repeat supported rules on selected weekdays at specified times.
Date-Specific Schedules
Create supported rules for a particular calendar date.
Overnight Schedules
Keep website and application schedules active across midnight.
Scheduled Internet Restrictions
Schedule Internet restrictions and restoration while preserving required network exceptions.
Usage-Based Internet Restrictions
Restrict Internet access when a configured usage allowance is exhausted.
Scheduled Shutdown
Automatically shut down the computer at scheduled times.
Scheduled Sleep
Automatically put the computer to sleep at scheduled times.
Usage-Based Power Actions
Trigger shutdown or sleep when a configured computer usage limit is reached.
Advance Power Warnings
Display a warning and live countdown before shutdown or sleep, with configurable advance notice.
Monitor Schedules
Automatically apply display settings according to a schedule.
Grayscale Mode
Apply grayscale through monitor schedules or after reaching a usage limit.
Brightness Reduction
Lower display brightness through schedules or usage limits on supported monitors.
Blue Light Filtering
Schedule blue-light filtering or strengthen it after a usage limit on supported hardware.
Rule Priority Explanations
See which website rule takes priority and which conflicting rules were overridden.
Website Block Explanation Page
Show a local page in supported browsers explaining the block, its source and when it ends.
Application Block Notifications
Receive localized notifications identifying the rule that blocked an application and its end or reset time.
Configuration Overview
Review the number of configured schedules, limits and blocks in the Statistics section.
Application Blocking History
Review locally recorded application-blocking events and the rules responsible.
Rule Change History
Review local configuration changes to understand how your commitments evolve.
Background Enforcement
Keep supported schedules and blocking rules active while the main application window is closed.
Startup Enforcement
Restore configured blocking rules after Windows restarts without manually opening the interface.
System Tray Operation
Close the main window while keeping ChainBreaker running in the Windows system tray.
Background Process Recovery
A Windows supervisor service restarts required background components after unexpected termination.
Local Activity Statistics
Store activity statistics on the device instead of uploading them to an analytics service.
Limited Website Activity Data
Measure supported website usage by hostname without storing page content, URL paths or query strings.
Multiple Browser Support
Support hostname detection and block explanations in Chrome, Chromium, Edge, Brave, Firefox, Opera, Opera GX and Vivaldi.
Multilingual Interface
Choose the application language, with automatic detection of a supported Windows display language on first launch.
Supported Operating Systems
Windows 10 and Windows 11.
No User Account Required
Use the desktop application without creating a user account.
Local Data Storage
Store desktop settings and activity statistics in a local SQLite database.
Online Services
Internet access supports activation, licensing, payments and cemented-rule management.
Free Trial
Includes a 7-day free trial.
One-Time Purchase
Purchase a device-bound license with a one-time payment. Cemented-rule release payments are separate.
License Type
Proprietary software.
ChainBreaker’s distinctive feature is Cementing: you can explicitly lock individual rules against casual editing, disabling or deletion. Releasing a cemented rule requires a separate confirmation and a one-time micropayment, creating a deliberate pause before abandoning a commitment.
This approach works alongside website and application blocking, usage limits, computer schedules and display settings. You choose which rules to cement, so the level of commitment remains your decision.
ChainBreaker is worth considering if you use Windows and want website blocking, application limits, computer schedules and display controls in one tool.
It is especially suited to people who set useful boundaries but later feel tempted to disable them. Optional cementing adds friction to changing those decisions, while rule explanations show why a restriction is active.
Activity statistics stay on your device. The application requires no user account and offers a 7-day free trial and a one-time device-bound license purchase. Payments to release cemented rules are separate from the license price.
ChainBreaker is designed for Windows users who want more control over distracting websites, applications and time spent at the computer.
Its audience includes students protecting study time, remote workers and freelancers setting work boundaries, and people trying to reduce late-night browsing or excessive gaming, and ofcourse addicts, doomscrollers and so on. People that many times decided on something but later changed they mind when impuls came
It is particularly relevant to users who prefer setting rules in advance and want an optional commitment mechanism to make impulsive changes harder.
The idea behind ChainBreaker is the gap between making a decision and following it when a distraction becomes tempting. A plan made in a calm moment can be easy to abandon later.
ChainBreaker turns those earlier decisions into practical rules for websites, applications, computer use and display settings. Cementing extends that idea by making selected commitments harder to change casually, while keeping a deliberate release option available.
The guiding principle is to help people follow boundaries they have chosen for themselves.
Its a tool to help keep your own commitments. Chainbreaker makes it harder to betray yourself or even get more freedom of decision and time, by binding your calm decisions harder
The Windows desktop application is built with Python and PySide6 (Qt), with SQLite for local settings and activity statistics. It integrates with Windows services, Windows Firewall and Windows UI Automation for background enforcement and supported browser activity detection.
The companion website and online services use PHP with Laravel, Vue.js and Inertia.js. Stripe handles payments. Online services support activation, licensing and cemented-rule management.
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