Best Self-Hosted Alternatives to Zendesk
Zendesk is the default help desk for teams that have outgrown a shared inbox: email ticketing, routing, pre-written responses, automations and reports, billed per agent per month. What sends teams looking elsewhere is that bill growing with every seat, and live chat, messaging and AI agents sitting on the higher Suite plans. The self-hosted helpdesks below cover the same ground (a shared queue for email and chat, assignment, canned replies, internal notes) on a server you pay for once, however many agents log in.
Zendesk costs about $300/year and keeps your data on its servers. These researched, open-source alternatives give you the same workflow on hardware you own — here's what each needs to run.
The alternatives
What you give up by leaving Zendesk
Leaving Zendesk means giving up its marketplace of integrations, its AI agents, and a service someone else patches and backs up. The alternatives split by shape: Zammad is the closest like-for-like ticket desk, with SLAs, time accounting, a knowledge base and LDAP in its free AGPL-3.0 build, but it is heavy: 4 GB of RAM per its Docker docs, 6 GB plus 4 GB for Elasticsearch per its hardware guide; Chatwoot is a conversation inbox built around website chat and messaging apps, with SLA policies, custom roles and SSO in a paid enterprise edition; FreeScout is a lightweight shared email inbox that runs on a small PHP host, with tags, saved replies, workflows and a knowledge base sold as separate modules. Whichever you pick, email delivery, backups and upgrades become your job.
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Head-to-head
Common questions
Is self-hosting actually cheaper than Zendesk?
Zendesk costs $300/year. A VPS from $23.59/mo covers any of the 3 alternatives below, saving roughly $17/year.
Are these Zendesk alternatives really free?
The software is open-source and free to run. Your only cost is the server it runs on — often a few dollars a month, less than most SaaS subscriptions.
How much server do I need to self-host one?
Most of these run comfortably on a small VPS — 1–2 GB of RAM is enough for a single-user or small-team setup. Each app's page lists its minimum RAM.
Will I lose features by leaving Zendesk?
It depends on the app. The alternatives below cover the core workflow; polish and integrations vary, so check each one's stack and difficulty before you commit.