Why Tentaco exists
Most “free” web tools ask you to upload sensitive files to a stranger’s server. We built Tentaco around local-first processing: merge PDFs, format JSON, generate passwords and edit images in the browser, with optional cloud features clearly labelled when they are needed.
We are an independent project shipping in small releases, documenting limits honestly, and keeping the core open. Support is optional via Ko-fi — Tentaco stays free for everyone.
Local-first by default
Standard PDF, image and developer workflows run in your browser. No account wall for core tools.
Honest product
We publish a roadmap, changelog and privacy matrix so you know what stays local and what uses the server.
Built for real work
German E-Rechnung workflows, developer utilities and everyday document tools share the same privacy posture.
Explore Tentaco
Learn our mission, open a studio, or read how we handle data.
Optional support keeps Tentaco free: Поддержка на Ко-фи