Zammad
95 · HealthyTicketing and helpdesk system with email, chat, phone and social channels in one view.
Open source Helpdesk & live chat
Support ticketing, shared inboxes and customer chat. Ranked by health score.
Chatwoot
89 · HealthyOmnichannel customer support inbox covering website chat, email, WhatsApp and social channels.
FreeScout
76 · StableShared-inbox helpdesk in PHP, close in spirit to Help Scout, extended through modules.
Helpdesk
76 · StableTicketing system with SLAs, a customer portal, canned responses and a knowledge base, built on the Frappe framework.
DeskcommCRM
70 · StableChat-first CRM for teams that sell over WhatsApp, with AI agents, sales pipelines and a shared inbox.
osTicket
54 · CautionVeteran PHP support-ticket system that routes inquiries from email, web forms and phone.
Papercups
15 · At riskLive chat widget and support inbox built with Elixir and React.
Source-available and unverified licenses
The code for these is public, but the license is not an OSI open source license, or we have not verified it yet. Check the license notes on each project before relying on it.
Chatwoot
89 · Healthy
erxes
88 · Healthy
FreeScout
76 · Stable
Helpdesk
76 · Stable
DeskcommCRM
70 · Stable
Chaskiq
36 · At riskAt a glance
Health and license are separate verdicts: a project can be well maintained and still not be open source.
| Project | Health | License | Stars |
|---|---|---|---|
| Zammad | 95 · Healthy | Free, share hosted changesAGPL-3.0 | 6.0k |
| Chatwoot | 89 · Healthy | Free core, paid extrasMIT | 38k |
| FreeScout | 76 · Stable | Free, share hosted changesAGPL-3.0 | 4.6k |
| Helpdesk | 76 · Stable | Free, share hosted changesAGPL-3.0 | 3.4k |
| DeskcommCRM | 70 · Stable | Free to useMIT | 4.5k |
| osTicket | 54 · Caution | Free, share changesGPL-2.0 | 4.0k |
| Papercups | 15 · At risk | Free to useMIT | 6.1k |
| erxes | 88 · Healthy | Free, no resellingAGPL-3.0 + extra terms | 4.1k |
| Chaskiq | 36 · At risk | Free, no resellingAGPL-3.0 with Commons Clause | 3.6k |
Paid products these replace
Alternatives to CrispAlternatives to FreshchatAlternatives to FreshdeskAlternatives to FrontAlternatives to GorgiasAlternatives to Help ScoutAlternatives to HelpDeskAlternatives to HiverAlternatives to IntercomAlternatives to Jira Service ManagementAlternatives to LiveChatAlternatives to PylonAlternatives to respond.ioAlternatives to TidioAlternatives to WATIAlternatives to ZendeskAlternatives to Zoho Desk
Scores last refreshed from GitHub on 9 October 2026. How we score.