UserDiag
Today, UserDiag is a free and ad-free tool, useful to hundreds of people every day since 2020!
This project is managed by a single person in their personal time, and the costs are supported as much as possible by the non-profit association (law 1901) CTRL-F.
Personally, as a matter of principle, I do not wish to add advertisements on the site, nor arbitrarily block features by making them paid for individuals.
To maintain and improve UserDiag, I gladly dedicate thousands of hours of my personal time each year.
However, I cannot bear the financial costs alone in addition to my personal time.
Donations are only used to cover expenses, such as:
- server hosting costs
- domain names
- the digital certificate (to digitally sign the application)
This represents a total of just over 380 € per year.
From January 1, 2026 to this day, we have raised 0.00 € out of the ~380 € needed thanks to donors:
All donations will be used to cover expenses. Donations are not used to pay the members of the association.
You can donate to the CTRL-F association via Paypal
Once the donation is made, you will receive a confirmation email from Paypal and the progress bar above will update in the coming days.
Thank you!
Donation history
2025: 132.99 / 380 €Last update: 2026-01-01