Serpens Tech builds open-source productivity software with transparent architecture and user-first design.
All projects are fully open-source under the Apache 2.0 license. Inspect the code, self-host, or contribute.
A self-hosted task and budget management suite. Two apps — Crossed Viper and Leaf Viper — sharing one backend and database. Available on Web, Linux, Windows, and Android.
Serpens Tech is focused on building practical products with open code, clear architecture, and transparent development.
Full source code is always public. No hidden logic, no black boxes.
Run everything on your own infrastructure. Your data stays yours.
Apache 2.0 licensed. Inspect, fork, and deploy on your own terms.
Tools built to solve real problems, without unnecessary complexity.
For questions, partnerships, or general inquiries, reach out by email.