Hidden Problems Lab

Three free apps for problems people don't notice until they hurt: a refill that suddenly looks different, a recalled product still in the house, and website certificates that will start expiring much faster.

Tres aplicaciones gratuitas para problemas que la gente no nota a tiempo.

More free tools

Over thirty free Obsidian plugins, WordPress plugins, a GitHub issue checker and a book-making web app, each with a demo and install links: browse the catalog.

Private by design

No accounts and no servers. What you enter stays in your browser. Searches run on your device or go straight from your browser to the public sources each app names. Visits are counted with GoatCounter: no cookies, no personal data, only the page path, the referring site and the screen width, and nothing when Do Not Track is on.

Sin cuentas ni servidores. Sus datos se quedan en su dispositivo. Las visitas se cuentan con GoatCounter, sin cookies ni datos personales.