Zammad vs UVdesk
Both are alternatives to Freshdesk. Here's how they stack up — verified facts, no spin.
Also searched as UVdesk vs Zammad — same comparison, one verdict.
Both are help desk & customer support tools with the same broad shape, but Zammad scores 90 against UVdesk's 79 on data ownership and exit cost — the gap is in how easily you could leave.
Zammad
TOP PICKA full-featured, AGPL-licensed help desk with ticketing, a knowledge base, and multi-channel inboxes.
Zammad is a mature, actively-developed open-source help desk covering email, chat, and social ticketing, SLAs, a customer-facing knowledge base, and text modules/macros — the closest like-for-like replacement for Freshdesk's core ticketing product. It's built in Ruby on Rails with an Elasticsearch-backed search index and ships an official Docker Compose stack, so a self-hosted install is a well-trodden path rather than a science project.
UVdesk
A Symfony-based open-source help desk with ticketing, a knowledge base, and e-commerce integrations.
UVdesk is a PHP/Symfony help desk offering email ticketing, a customer knowledge base, saved replies, workflows, and native integrations aimed at online sellers (Shopify, WooCommerce, Magento). It's a solid, mature option for teams already in the PHP/Symfony ecosystem or running an e-commerce storefront who want ticketing tied closely to order/customer data — a niche Freshdesk serves through paid connector apps rather than native integrations.
Side by side
10 points of comparison, every one read from a verified field. Green marks the side that wins a row outright. A dash means we do not hold that fact — never that it is zero.
| Zammad | UVdesk | |
|---|---|---|
| Sovereignty ScoreOur transparent 0–100 composite for data ownership and exit cost. | 90 | 79 |
| Open source | Yes | Yes |
| Self-hostable | Yes | Yes |
| Local-first data | Yes | Yes |
| License | AGPL-3.0 | OSL-3.0 |
| Pricing | Free to self-host with unlimited agents; optional managed cloud plans start around €19/agent/month and Zammad also sells paid support contracts for self-hosted installs. | Free to self-host (community edition). UVdesk also sells a separate hosted SaaS plan and paid marketplace add-ons. |
| RAM to run it wellThe figure that actually matters, not the vendor's minimum. | 16 GB for a single-server install. The vendor's floor is 6 GB for Zammad plus 4 GB for Elasticsearch, and the usual VPS size above that is 16 GB. You can fit it on 8 GB by capping the Elasticsearch heap, which Zammad itself calls a less-than-ideal fix. | 4 GB. That is the vendor's own floor, and there is no lighter documented setup. |
| Realistic running costWhat the box costs each month if you run it yourself. | $48–96/mo for a 10-agent instance on a 16 GB VPS with Elasticsearch on the same box; $24–48/mo on 8 GB with a capped Elasticsearch heap | $12–24/mo for a 5-agent instance on a 4 GB VPS |
| Setup timeHonest first-install estimate, not the marketing quickstart. | 2–3 hours with Docker Compose, including the Elasticsearch host setting; email channels and triggers take longer | 2–3 hours on a LAMP box; longer if the IMAP and Mailparse extensions fight your PHP version |
| Ongoing maintenanceThe part nobody budgets for. | Regular Zammad releases pulled with git pull and docker compose, PostgreSQL major-version bumps (15 or newer is now required), Elasticsearch upgrades followed by a search-index rebuild, and backups that follow the Docker-specific procedure. Zammad does not support problems that are specific to Docker. | You maintain PHP and its IMAP and Mailparse extensions yourself, keep the mailbox cron running, and upgrade through Composer. There have been no releases to apply since September 2025. |
Zammad is Macrostack's recommended Freshdesk alternative, so it's our pick here.
Weighing both against staying on Freshdesk? Is Freshdesk free? What it actually costs →
Zammad
Strengths
- +Full AGPL-3.0 open-source core — no enterprise-only feature split
- +No per-agent limit when self-hosted; unlimited tickets and mailboxes, so team growth never triggers a new bill tier
- +Mature product: multi-channel (email, chat, Twitter/Facebook, telephony via CTI), SLAs, and a real knowledge base out of the box
- +Official Docker Compose and package installers make self-hosting straightforward
Trade-offs
- −Elasticsearch is a required dependency for full-text search, adding real memory/operational overhead versus a lighter stack
- −No built-in generative AI agent as of this writing — nothing directly equivalent to Freddy AI Copilot's inline reply drafting
- −Smaller third-party app marketplace than Freshdesk's connector catalog
UVdesk
Strengths
- +Open Software License 3.0 is OSI-approved, and the code is fully visible/modifiable
- +Strong out-of-the-box e-commerce integrations (Shopify, WooCommerce, Magento) that neither Zammad nor FreeScout match natively
- +Sizeable community (19k+ GitHub stars) and an active Symfony-based plugin ecosystem
- +Free self-hosted core with no agent-count ceiling
Trade-offs
- −OSL-3.0 is a copyleft license with unusual patent-termination clauses that are less common and less well-understood than AGPL/MIT/Apache — worth a quick read for anyone building a commercial product on top of it
- −Release cadence is slower than Zammad, Chatwoot, or FreeScout (last tagged repository activity noticeably quieter over the past several months)
- −Symfony/PHP setup has a steeper install curve than FreeScout's simpler stack
Which one fits you
The trade-offs above, turned into a decision. Find the line that describes your team.
Choose Zammad
if a lower exit cost matters more to you than any single feature, and full AGPL-3.0 open-source core — no enterprise-only feature split.
Choose UVdesk
if open Software License 3.0 is OSI-approved, and the code is fully visible/modifiable.
Neither, yet
if both carry a real cost you should weigh first — elasticsearch is a required dependency for full-text search, adding real memory/operational overhead versus a lighter stack, and oSL-3.0 is a copyleft license with unusual patent-termination clauses that are less common and less well-understood than AGPL/MIT/Apache — worth a quick read for anyone building a commercial product on top of it. If either of those is a dealbreaker for your team, the shortlist is wrong rather than the choice.
What it takes to run these yourself
Real requirements and honest running costs, not the vendor quickstart.
Self-hosting Zammad
16 GB for a single-server install. The vendor's floor is 6 GB for Zammad plus 4 GB for Elasticsearch, and the usual VPS size above that is 16 GB. You can fit it on 8 GB by capping the Elasticsearch heap, which Zammad itself calls a less-than-ideal fix. RAM · 2–3 hours with Docker Compose, including the Elasticsearch host setting; email channels and triggers take longer
$48–96/mo for a 10-agent instance on a 16 GB VPS with Elasticsearch on the same box; $24–48/mo on 8 GB with a capped Elasticsearch heap
Self-hosting UVdesk
4 GB. That is the vendor's own floor, and there is no lighter documented setup. RAM · 2–3 hours on a LAMP box; longer if the IMAP and Mailparse extensions fight your PHP version
$12–24/mo for a 5-agent instance on a 4 GB VPS
Zammad vs UVdesk — common questions
Is Zammad a better fit than UVdesk for help desk & customer support?
It depends on what you are optimising for, and the honest split is this: Zammad scores 90 to UVdesk's 79 on data ownership and exit cost, so it is the safer choice if you care about being able to leave. UVdesk earns its place on a different axis — open Software License 3.0 is OSI-approved, and the code is fully visible/modifiable. Neither is a wrong answer for every team; the table above is the actual comparison.
What happens if we want to switch later?
Zammad keeps its data local or in open formats, so leaving is an export rather than a negotiation. UVdesk is still self-hostable, so the files stay on your server either way — but it is not local-first by design, so check what its export produces before you rely on it.
Can I self-host Zammad or UVdesk?
Both can be self-hosted. The difference is what it costs you in time rather than whether it is possible — see the setup and maintenance rows above.
Are Zammad and UVdesk both alternatives to Freshdesk?
Yes — both appear in our Freshdesk comparison, which is why they are worth putting side by side. People usually arrive here already having decided to move off Freshdesk and now choosing between the two replacements, which is a narrower and much easier question.
More Freshdesk head-to-heads
Related alternative guides
Facts verified 2026-07-11. Licenses and pricing change — spotted something out of date? That's a correction we want.