Self-hosted projects using C#

Self-hosted audiobook manager that searches, downloads, tracks, and organizes audiobooks from torrents and Usenet with rich metadata and a responsive web UI.

Actively maintained

Alternative to:

Plex+3

A configurable subtitle translation platform supporting multiple local and SaaS translation services.

Actively maintained

Alternative to:

Google Translate+1

Fenrus is a self-hosted personal startpage dashboard that organizes your apps and links into groups, supports multiple users, and can show rich status data for “smart” apps.

MITActively maintained

Alternative to:

Start.me+8

Self-hosted ecosystem to organize, share, and download your legally owned DRM-free PC games from your own server, with a web UI and Windows client.

Actively maintained

Alternative to:

Steam+1

Reaparr is a cross-platform Plex downloader that copies media from other Plex servers into your own library, with a web UI and resilient multi-threaded downloads.

GPL-3.0Actively maintained

Alternative to:

put.io+8

Open-source platform to host, distribute and launch games on local networks with a dedicated launcher, game uploads/downloads, server management and basic chat.

MITActively maintained

Alternative to:

Steam+2

Self-hosted Docker Compose updater that discovers compose stacks, monitors GitHub releases, groups related services, and applies controlled updates with notifications and optional AI summaries.

MITActively maintained

Alternative to:

Portainer Business Edition (Portainer Cloud)

Lightweight C# service that polls RSS and YouTube feeds and posts updates to Discord via webhooks. Docker-ready, configurable, supports forum channels and embeds.

MITSlowing down

Alternative to:

Blogtrottr+2

Open-source Kanban board and task management app built with ASP.NET Core Blazor. Supports projects, boards, cards, subtasks, time-tracking, attachments, reminders and Trello import.

MITActively maintained

Alternative to:

Trello+19

Modular Docker backup solution that uses container and volume labels to schedule backups, manage container state for consistency, and enforce retention policies.

MITSlowing down

Alternative to:

Veeam Backup & Replication+7

Self-hosted file sharing platform with box-based access controls, S3 or local storage, file previews, ZIP browsing, OCR and optional AI integrations.

AGPL-3.0Actively maintained

Alternative to:

Dropbox+19

Web app to generate GIFs from Plex media and subtitles with integrated Plex login; built on .NET 6 and provided as a Docker Compose service.

LGPL-2.1Likely dormant

Alternative to:

Any Video Converter (AVC) Online+4

Open E-Label is an open-source web application that creates QR-code electronic labels for wine bottles, delivering multilingual product, ingredient and regulatory information to consumers.

Simple companion web app for book clubs to suggest books, run voting rounds, track reading history, write reviews and integrate with Goodreads.

Actively maintained

Alternative to:

Goodreads+5

Emby is a personal media server that organizes and streams your movies, TV, music, photos, and home videos to apps, browsers, smart TVs, and DLNA clients.

Activity unknown

Alternative to:

Plex+15

Self-hosted workflow automation for media and file libraries—watch folders, run FFmpeg/metadata steps, and route outputs with a visual flow builder.

Activity unknown

Alternative to:

FileFlows Cloud+8

Iceshrimp.NET is a performant, maintainable ActivityPub federated social network server with a Blazor WebAssembly frontend and a Mastodon-compatible API.

Activity unknown

Alternative to:

Mastodon (mastodon.social)+6