OpenAlts

Replace the junk.
Keep the power.

A curated directory of open-source alternatives to proprietary and bloated software. Self-host, own your data, ship without the bloat.

Browse by Category

All Alternatives

Immich

photos

62k

High-performance self-hosted photo and video management solution. Upload, organize, search, and share your media with a beautiful mobile-first interface.

replaces Google Photosreplaces Apple Photos+1
AGPL-3.0

Nextcloud

cloud

29k

The self-hosted productivity platform that keeps you in control. File sync, collaboration, calendar, contacts, and more — all under your roof.

replaces Google Drivereplaces Dropbox+2
AGPL-3.0

Paperless-ngx

productivity

27k

Document management system that transforms your physical documents into a searchable online archive. Supercharged with OCR and tagging.

replaces Evernotereplaces Google Drive for docs+1
GPL-3.0

Gitea

dev

47k

A painless self-hosted Git service. Lightweight code hosting solution written in Go. Perfect alternative to GitHub for private teams.

replaces GitHubreplaces GitLab.com+1
MIT

Matrix + Element

communication

12k

Open network for secure, decentralized communication. Element is the polished client. Own your chat history forever.

replaces Slackreplaces Discord+2
Apache-2.0

Jellyfin

media

40k

The free software media system that puts you in control of your media. Stream to any device from your own server.

replaces Plexreplaces Emby+1
GPL-2.0

Vaultwarden

privacy

43k

Unofficial Bitwarden compatible server written in Rust. Extremely lightweight password manager you can self-host.

replaces 1Passwordreplaces LastPass+1
GPL-3.0

LibreOffice

office

4.0k

Powerful free office suite. Compatible with Microsoft Office formats. Writer, Calc, Impress, Draw, Base, and Math.

replaces Microsoft Officereplaces Google Docs+1
MPL-2.0

Standard Notes

productivity

5.6k

A simple and private notes app. End-to-end encrypted. Extensible with editors and themes. Your notes stay yours.

replaces Evernotereplaces Apple Notes+1
AGPL-3.0

Home Assistant

privacy

78k

Open source home automation that puts local control and privacy first. Perfect local alternative to Google Home / Alexa ecosystems.

replaces Google Homereplaces Amazon Alexa+1
Apache-2.0

Penpot

dev

38k

The open-source design tool that bridges designers and developers. Collaborative, self-hostable alternative to Figma.

replaces Figmareplaces Sketch+1
MPL-2.0

Plausible Analytics

dev

22k

Simple, privacy-friendly alternative to Google Analytics. Lightweight, open source, and cookie-free by default.

replaces Google Analyticsreplaces Mixpanel+1
AGPL-3.0

Uptime Kuma

dev

70k

A fancy self-hosted monitoring tool. Beautiful status pages, multi-channel notifications, and easy setup.

replaces Pingdomreplaces UptimeRobot+1
MIT

AppFlowy

productivity

63k

Open-source alternative to Notion. Privacy-first, offline-capable, and fully customizable knowledge base and project management.

replaces Notionreplaces Coda+1
AGPL-3.0

NocoDB

productivity

55k

Open source Airtable alternative. Turns any MySQL, PostgreSQL, SQL Server, SQLite & MariaDB into a smart spreadsheet.

replaces Airtablereplaces Google Sheets (for databases)+1
AGPL-3.0

Cal.com

productivity

36k

The open-source Calendly alternative. Scheduling infrastructure for everyone. Self-host or use the cloud.

replaces Calendlyreplaces Google Calendar booking+1
AGPL-3.0

Outline

productivity

30k

The fastest knowledge base for growing teams. Beautiful, realtime collaborative, and open source.

replaces Notionreplaces Confluence+1
BSL-1.1

FreeTube

media

18k

An open source YouTube app for privacy. No ads, no tracking, and optional free proxies. Desktop only for now.

replaces YouTube appreplaces YouTube in browser (with trackers)
AGPL-3.0

Syncthing

cloud

70k

Continuous file synchronization program. Peer-to-peer, no central server required. Secure and private by design.

replaces Dropboxreplaces Resilio Sync+1
MPL-2.0

SearXNG

privacy

18k

Privacy-respecting metasearch engine. Aggregates results from more than 70 search services. No tracking, no profiling.

replaces Google Searchreplaces Bing+1
AGPL-3.0