Open Source C# Projects

Discover open source software built with C#.

Budget Board

A simple app for tracking monthly spending and working towards financial goals.

Alternative to:

Mint

KillerPDF

Lightweight, portable PDF editor for Windows with no subscription or telemetry.

Alternative to:

Adobe Acrobat

AliasVault

AliasVault is an end-to-end encrypted password and (email) alias manager that protects your privacy by creating alternative identities, passwords and email addresses for every website you use.

Alternative to:

1Password

Aptabase

✨ Open Source, Privacy-First and Simple Analytics for Mobile, Desktop and Web Apps

Alternative to:

Google Analytics

Duplicati

Free, open-source backup software that stores encrypted, incremental backups to cloud storage and remote servers.

Alternative to:

Backblaze

Captura

Windows screen recorder that captures screen, audio, cursor, mouse clicks, and keystrokes.

Alternative to:

Camtasia

Bitwarden

Bitwarden infrastructure/backend (API, database, Docker, etc).

Alternative to:

1Password

Focalboard

Open-source, self-hosted project management tool — a free alternative to Trello, Notion, and Asana.

Alternative to:

Trello