Open-Source Alternatives,
Tool by Tool
Every page lists the best free, self-hosted replacements for a single SaaS product — with comparison tables, quickstart guides, and deploy instructions.
1Password Alternatives
1 open-source tool
nodewarden
4.0k stars
Adobe Acrobat Alternatives
1 open-source tool · 1 Docker-ready
Stirling-PDF
94.7k stars
Braze / Klaviyo Alternatives
1 open-source tool
dittofeed
3.0k stars
Bugsnag / Rollbar Alternatives
1 open-source tool · 1 Docker-ready
self-hosted
9.6k stars
Calendly Alternatives
53 open-source tools · 10 Docker-ready
unsloth
78.4k stars
Contentful Alternatives
1 open-source tool
pwndrop
2.3k stars
Datadog Alternatives
2 open-source tools · 1 Docker-ready
WatchYourLAN
7.6k stars
Docker Hub Alternatives
2 open-source tools · 2 Docker-ready
dockge
24.7k stars
DocuSign Alternatives
2 open-source tools
docuseal
18.8k stars
Evernote Alternatives
3 open-source tools · 1 Docker-ready
Trilium
38.4k stars
Feedly Alternatives
1 open-source tool
FreshRSS
16.4k stars
Firebase Alternatives
2 open-source tools · 1 Docker-ready
appwrite
57.7k stars
GitHub Alternatives
3 open-source tools · 1 Docker-ready
gitea
58.6k stars
GitHub Actions Alternatives
1 open-source tool · 1 Docker-ready
open-dronelog
1.6k stars
Google Analytics Alternatives
1 open-source tool · 1 Docker-ready
shynet
3.2k stars
Google Docs Alternatives
10 open-source tools
linkwarden
20.2k stars
Google Drive Alternatives
1 open-source tool
docspell
2.3k stars
Google Drive / Dropbox Alternatives
4 open-source tools · 1 Docker-ready
core
8.8k stars
Google Photos Alternatives
3 open-source tools · 1 Docker-ready
immich
116.9k stars
Heroku Alternatives
1 open-source tool · 1 Docker-ready
dokku
32.2k stars
Heroku / Vercel Alternatives
2 open-source tools · 2 Docker-ready
coolify
63.4k stars
Intercom Alternatives
1 open-source tool
libredesk
3.1k stars
Jira Alternatives
4 open-source tools · 1 Docker-ready
superplane
8.1k stars
Mailchimp Alternatives
1 open-source tool
listmonk
23.9k stars
Medium / Substack Alternatives
1 open-source tool
wayback
2.2k stars
NordVPN Alternatives
5 open-source tools · 2 Docker-ready
netmaker
11.8k stars
Okta / Auth0 Alternatives
1 open-source tool
authgear-server
2.1k stars
Pingdom Alternatives
1 open-source tool · 1 Docker-ready
uptime-kuma
92.7k stars
Plex / Netflix Alternatives
6 open-source tools · 3 Docker-ready
AudioMuse-AI
2.8k stars
Pocket Alternatives
1 open-source tool
linkding
11.3k stars
Pocket / Instapaper Alternatives
1 open-source tool
wallabag
13.0k stars
Pushover Alternatives
1 open-source tool
fredy
1.6k stars
QuickBooks Alternatives
1 open-source tool
AiSOC
2.7k stars
SAP / QuickBooks Alternatives
1 open-source tool · 1 Docker-ready
frappe_docker
2.6k stars
Spotify Alternatives
1 open-source tool
navidrome
24.3k stars
Tableau / Looker Alternatives
1 open-source tool · 1 Docker-ready
openGym
14.6k stars
Todoist / Jira Alternatives
1 open-source tool
vikunja
5.8k stars
Trello Alternatives
2 open-source tools · 1 Docker-ready
planka
12.6k stars
Zapier Alternatives
4 open-source tools
n8n
208.3k stars
Zoom Alternatives
1 open-source tool
mirotalksfu
3.1k stars