Open source.
Transparent by design.
Ready in the cloud.

Viper Suite is built around open-source transparency first: inspect the code, verify behavior, and deploy your way. Use our official hosted cloud app for instant access, or self-host when you need full infrastructure control.

Open Hosted App View Source on GitHub Quick Start
Optional: self-host in 3 commands
# clone the repository
git clone https://github.com/serpens-tech/viper-suite.git
cd viper-suite

# start everything
docker compose up -d

# open in browser → http://localhost:8000
Two apps, one server

Everything you need to stay organised

Viper Suite ships with two apps that share one backend and database, whether you use the hosted cloud version or self-host your own deployment.

Crossed Viper

Crossed Viper

Task & to-do management

  • Multiple task lists with priorities and due dates
  • User accounts with JWT authentication
  • Admin panel for managing users
  • Finance flags — mark tasks as income or expense
  • Completing a finance task auto-creates a budget entry
  • Dark mode support
Leaf Viper

Leaf Viper

Income & expense tracking

  • Track income and expenses with running balance
  • Automatic entries from completed Crossed Viper finance tasks
  • Date-based transaction history
  • Clean, minimal interface
  • Dark mode support
Available on

Web, Desktop & Android

All clients can connect to the hosted cloud app or your own deployment. Build from source anytime — the full code is public.

🌐

Web

Works in any modern browser. No install needed.

🐧

Linux

Native .deb installer for Debian/Ubuntu.

🪟

Windows

PyInstaller .exe with optional Inno Setup installer.

🤖

Android

Capacitor-based APK. Build with Android Studio.

Deployment Options

Cloud-hosted first, self-host if you want

Primary path: use the hosted cloud app for speed. Optional path: self-host with the exact same open-source code when you need it.

Recommended

Official Hosted Viper Suite

Use the hosted cloud instance maintained by the Viper Suite team and start in seconds with no infrastructure setup.

  • No infrastructure setup required
  • Fast onboarding for users and teams
  • Same open-source apps and feature set

Open Hosted App

Optional

Self-Host on Your Own Server

Deploy with Docker on your own infrastructure whenever you need custom operations, networking, or internal-only access.

  • Run locally, on-prem, or in your private cloud
  • Apache 2.0-licensed source code with full transparency
  • No vendor lock-in, migrate whenever you want
Self-Host Setup (Optional)

Run your own deployment in minutes

For self-hosting, all you need is Docker and Git. No databases to configure and no complex environment setup required.

1

Clone the repository

git clone https://github.com/serpens-tech/viper-suite.git && cd viper-suite

2

Start the application

docker compose up -d — starts the FastAPI backend and PostgreSQL database.

3

Open in your browser

Visit http://localhost:8000 and pick an app. Default login: admin / admin123.

4

Change the default password

Go to the Admin panel and update your credentials immediately.

Get Viper Suite

Start with free downloads

Windows, Linux, and Android free builds are always available from release assets.

Free Build

Windows EXE

Download the latest free .exe package from the release assets.

Get Free EXE

Free Build

Linux Files

Download Linux packages from the latest release assets.

Get Linux Files

Free Build

Android APK

Download the free APK directly from release assets.

Get Free APK

Paid Store Support

Support through official stores

If you want to support development through paid app channels, use Google Play or Microsoft Store.

Paid App

Google Play

Get the Android app from Google Play and support ongoing development through the store release.

Support on Google Play

Paid App

Microsoft Store

Get the Windows app from Microsoft Store and support the project through the store channel.

Support on Microsoft Store

Direct Support

Support directly on Patreon

Patreon is separate from app downloads and store channels, focused on ongoing feature and maintenance support.

Patreon

Viper Suite Patreon

Back the project directly and help fund new features, fixes, and long-term maintenance.

Support on Patreon

Built By

Made by Serpens Tech

Viper Suite is designed and maintained by Serpens Tech, focused on open-source productivity tools and transparent software development.

Company

Serpens Tech

Building practical products with open code, clear architecture, and user-first design.

Visit Serpens Tech

Open Source

Public Development

Follow releases, roadmap progress, and source code updates directly on GitHub.

Visit Project GitHub

Contact

Get in touch

For support, partnerships, or deployment questions, contact us by email.

Email

Viper Suite Team

contact@viper-suite.com