Best of 2026
Best open-source Customer Support apps
The 4 highest-scoring open-source Customer Support apps on AppFinder, each with the facts behind its position.
Positions come from our organic score, led by people: community upvotes, visitor ratings and feedback, then how complete the listing is and how recently it was updated. Verification, Pro plans, team ratings and advertising are not inputs, and nothing paid can add an upvote. How ranking works
At a glance
- Ranked here
- 4
- Apps in Customer Support
- 10
- With a free plan
- 4 of 4
Top 4 open-source Customer Support apps
Ranked by organic score: upvotes and ratings from people. Payment never changes this order.How ranking works
Position 1
The operating system for modern business
Why it’s here
- Includes Public API, Self-hosting, AI agents and 12 more
- Integrates with QuickBooks and Xero
- Open source
Position 2
Best open source help desk – Zendesk & Help Scout alternative
Why it’s here
- Includes Public API, AI agents, Help desk & ticketing and 6 more
- Integrates with Gmail, Jira, Slack and 1 more
- Open source
Position 3
Open-source communications platform
Why it’s here
- Includes Public API, Self-hosting, Live chat and 4 more
- Integrates with GitHub, GitLab, Jira and 1 more
- Open source
- Available on Web, macOS, Windows, Linux, iOS and Android
Position 4
Open-source CRM for sales, marketing and service
Why it’s here
- Includes Public API, Self-hosting, Help desk & ticketing and 5 more
- Integrates with Outlook
- Open source