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The AI stack

The whole five-layer mapL3InfrastructureL4Models & toolingL5Applications

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About

How we rank & score
Best of · 4 tools ranked

The best Help Desk & Customer Support

Every option ranked — open-source, self-hostable, and commercial — by our transparent Sovereignty Score, with honest trade-offs so you choose what fits you, not us.

Shared-inbox and ticketing platforms that turn customer emails, chats, and social messages into tracked support tickets, with routing, macros, SLAs, and a public help center.

L5Applications — layer 5 of the AI stack
  1. 1

    Zammad

    Top pickOpen source

    A full-featured, AGPL-licensed help desk with ticketing, a knowledge base, and multi-channel inboxes.

    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. · in our Freshdesk comparison →

    90
    sovereignty
    What is Zammad? →
  2. 2

    FreeScout

    Open source

    A lightweight, completely free, self-hosted shared mailbox modeled on Help Scout's simplicity.

    Core is free forever, unlimited agents and mailboxes. Optional one-time modules (not subscriptions) cost $4-$15 each for extras like knowledge base, reports, or CRM fields. · in our Freshdesk comparison →

    86
    sovereignty
    What is FreeScout? →
  3. 3

    Chatwoot

    Open source

    An open-core omnichannel inbox strongest at live chat, WhatsApp, and social messaging.

    Community edition free to self-host, unlimited agents. Self-hosted paid tiers: Premium Support $19/agent/month (Captain AI, voice, branding, roles/permissions) and Enterprise $99/agent/month (adds SSO/SAML, SLA). Cloud-hosted plans start at $19/agent/month (Startups tier). · in our Freshdesk comparison →

    84
    sovereignty
    What is Chatwoot? →
  4. 4

    UVdesk

    Open source

    A Symfony-based open-source help desk with ticketing, a knowledge base, and e-commerce integrations.

    Free to self-host (community edition). UVdesk also sells a separate hosted SaaS plan and paid marketplace add-ons. · in our Freshdesk comparison →

    79
    sovereignty
    What is UVdesk? →

Replacing a specific tool?

Head-to-head comparisons for each popular help desk & customer support product.

Alternatives to Freshdesk

4 vetted options · top pick Zammad

Alternatives to Zendesk

4 vetted options · top pick Zammad

Straight head-to-heads

Two help desk & customer support tools, side by side — verified facts and a plain verdict.

Zammad vs FreeScout→Zammad vs Chatwoot→Zammad vs UVdesk→FreeScout vs Chatwoot→FreeScout vs UVdesk→Chatwoot vs UVdesk→
The Macrostack brief

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