Self-hosted projects using JavaScript

Review Board is a web-based tool for code and document reviews, with rich diff viewing, threaded discussions, and integrations with many version control and CI systems.

MITActively maintained

Alternative to:

Gerrit Code Review+6

Cypht is an open-source PHP/JavaScript webmail and RSS aggregator built from modular plugin sets, unifying multiple accounts with search and server-side filters.

Friendica is a decentralized, federated social network server that connects to the Fediverse, offering posts, profiles, events, photos, and strong privacy controls.

AGPL-3.0Actively maintained

Alternative to:

Mastodon (mastodon.social)+8

SnappyMail is a fast, modern webmail client (RainLoop fork) focused on performance, privacy, and secure IMAP access with optional PGP support and admin controls.

AGPL-3.0Actively maintained

Alternative to:

Gmail+10

Self-hosted open-source billing, invoicing, payments, and client management platform for hosting and online service businesses.

Apache-2.0Actively maintained

Alternative to:

WHMCS+12

ZenTao is an open source project management system for agile teams, combining product planning, Scrum/Kanban execution, bug tracking, testing, docs, and reporting.

Actively maintained

Alternative to:

Jira Software+19

Enterprise-grade, disk-based backup server for Windows, Linux, and macOS clients using SMB, rsync, or tar over SSH, with deduplication and web-based restores.

GPL-3.0Actively maintained

Alternative to:

Veeam Backup & Replication+10

Hypersomnia is a community-driven multiplayer top-down shooter built in modern C++ without a game engine, featuring deterministic netcode and an in-game map editor.

Open-source low-code platform to build internal tools and customer-facing web apps with a visual UI builder, reusable modules, data-source connectors, and RBAC.

AGPL-3.0Slowing down

Alternative to:

Retool+13

Alf.io is an open source ticket reservation and event attendance management system for conferences, workshops, meetups, and trade shows.

GPL-3.0Actively maintained

Alternative to:

Eventbrite+19

Web app for synchronized group watching: per-channel playlists, real-time chat, moderation, and multi-source media playback.

Slowing down

Alternative to:

Watch2Gether

Next-generation open-source CRM for managing contacts, companies, tasks, and sales opportunities with a modern UI and customizable fields.

AGPL-3.0Actively maintained

Alternative to:

Salesforce Sales Cloud+18

Python/Flask reading-based language learning app that turns texts into interactive lessons, with term management, plugins, audio and Anki export.

MITActively maintained

Alternative to:

LingQ+3

Self-hosted web app to auto-download YouTube channels, organize media with metadata, and schedule downloads for Plex, Jellyfin, Emby, and Kodi.

ISCActively maintained

Alternative to:

PlayOn Cloud+2

Open source link-in-bio platform for creating a single landing page of links, with social features like a feed, discovery, questions, and likes.

AGPL-3.0Actively maintained

Alternative to:

Campsite.bio+1

Winter CMS is a Laravel-based, self-hosted open-source CMS with a user-friendly backend and extensible plugin/theme architecture for websites and web apps.

MITActively maintained

Alternative to:

WordPress.com+10

AirTrail is a modern open-source personal flight tracking web app with an interactive world map, flight history, statistics, multi-user support, and import tools.

GPL-3.0Actively maintained

Alternative to:

KAYAK Trips

Open-source security analytics framework for event tracking, in-app threat detection, and risk management to protect applications from abuse, bots, and account takeover.

AGPL-3.0Actively maintained

Alternative to:

Splunk+4

Self-hosted open-source ad serving platform to manage campaigns, deliver targeted ads, and track impressions, clicks, and conversions with reporting.

GPL-2.0Actively maintained

Alternative to:

Google Ads+6

Open-source, self-hostable file transfer service with resumable uploads, S3 or disk storage, transfer requests, and end-to-end encrypted WebRTC quick transfers.

AGPL-3.0Slowing down

Alternative to:

WeTransfer+9

Socioboard is an open-source social media management platform for publishing, scheduling, team collaboration, RSS content curation, and analytics/reporting across multiple networks.

Actively maintained

Alternative to:

Hootsuite+11

Self-hosted web app for real-time, end-to-end encrypted file sharing from one device to many via peer-to-peer WebRTC transfers.

MITActively maintained

Alternative to:

Snapdrop+11

A lightweight, single-user expense tracker with a clean UI, monthly pie-chart insights, recurring transactions, and CSV import/export.

MITSlowing down

Alternative to:

Mint (Intuit Mint)+13

Self-hosted, lightweight federated messenger with end-to-end encrypted threads and optional WebRTC audio/video calling across independently hosted nodes.

Apache-2.0Actively maintained

Alternative to:

Signal+19

Hook0 is an open-source Webhooks-as-a-Service platform to send events via a single API call with subscriptions, retries, persistence, and monitoring.

Actively maintained

Alternative to:

Svix+5

Self-hosted web app to organize product warranties, track expirations, manage claims, store receipts, and send customizable notifications.

AGPL-3.0Actively maintained

Alternative to:

Encircle Home Inventory

Bludit is a simple, fast flat-file CMS that stores content as JSON, enabling database-free websites and blogs with themes, plugins, and Markdown/HTML editing.

MITActively maintained

Alternative to:

WordPress.com+16

Self-host game clips and videos, organize them into a library, and share via unique watch links with optional public feed and uploads.

GPL-3.0Actively maintained

Alternative to:

Loom+19

Mylar3 is an automated comic book (CBR/CBZ) downloader and post-processor for NZB and torrent clients, with watchlists, pull lists, and metadata tagging.

GPL-3.0Slowing down

Alternative to:

CLZ Comics (Collectorz)+1

Nextcloud Deck is a Kanban-style project and personal task management app for Nextcloud, with boards, cards, labels, comments, and file attachments.

AGPL-3.0Actively maintained

Alternative to:

Trello+17