freiheitsrechner.de

What It Is

Freiheitsrechner (literally “freedom calculator”) is a web tool focused on forecasting personal wealth growth and calculating financial independence (FIRE). It helps users estimate when they can achieve financial freedom—when expenses can be permanently covered by assets, interest, pensions, and other passive income. The tool runs entirely locally in the browser, with a strong emphasis on minimalism and maximum privacy protection.

Core Dimension Analysis

• Core Function Modules: Provides projections of personal wealth development, calculation of the financial independence milestone, and automatic calculation of German statutory pensions (including for a partner). After users adjust parameters, results are instantly displayed in graphical form.
• Data Security and Compliance: This is the tool’s biggest highlight. The program runs 100% locally in the browser, does not transmit any user-entered data to servers, does not use ad networks, and does not collect user email addresses, achieving a physically isolated level of privacy protection.
• Deployment Method: Offered as a web-based tool, compatible across PC, tablet, and mobile browsers. However, all core calculations rely entirely on the local device and require no installation.
• Team Collaboration and Permissions: No enterprise-level collaboration features. It only supports joint pension calculations for partners, making it a purely personal/family finance tool.
• API and Developer Support: None.

Pricing

Uses a “pay-what-you-want donation” model. Users can access all features completely free of charge, and if they are satisfied, they can voluntarily donate to support the developer.

Pros and Cons

• Pros: Extremely strong privacy protection (zero data uploads); very simple to use, with instant chart feedback when adjusting parameters; compatible across devices; no ads.
• Cons: Relatively limited feature set, lacking cloud synchronization for asset accounts; automatic statutory pension calculation only applies to the German system, limiting its value for non-German users; no official customer support channel.

Who It’s For

Primarily suited to users in Germany pursuing financial independence (FIRE), as well as individuals and families who need to plan for German statutory pensions. It may also be useful as a reference for overseas users who place a very high priority on financial data privacy and want to run simple, rough FIRE calculations, though language barriers and differences in pension systems should be noted.

Access from China

As a lightweight, purely front-end web application, it can usually be accessed directly without a proxy. However, the interface is in German, so there is a certain language barrier.