Jace AI alternatives · Email
Self-hosted alternatives to Jace AI
The Jace AI listing does not say it can be self-hosted. 25 of the 125 other email apps in this directory can be self-hosted, according to their own sites.
Jace AI is a paid product with a free trial, starting at $20 per month, billed yearly ($25 billed monthly). 19 of them are free or have a free plan.
25 tools · Listings checked up to Nov 13, 2026 · Where the facts come from
The 12 closest to Jace AI
- Free trial · from $18/mo
Inbox Zero
Open source AI email assistant for Gmail and Outlook
- Inbox Zero starts at $18 per user / month, billed annually ($20 billed monthly). Jace AI starts at $20 per month, billed yearly ($25 billed monthly).
- Only Inbox Zero lists macOS, Windows, iOS and Android apps.
- Only Inbox Zero lists a browser extension.
- Inbox Zero is open source and self-hostable, according to its own site.
- Free plan · from $20/mo
Zero Mail
Open-source AI email client that connects your existing inboxes
- Zero Mail starts at $20 per month (billing basis not shown). Jace AI starts at $20 per month, billed yearly ($25 billed monthly).
- Zero Mail has a free plan. Jace AI does not, though it has a free trial.
- Zero Mail is open source and self-hostable, according to its own site.
- Jace AI also covers chat assistant, workflow automation and AI agents.
- Paid
Open-Xchange
OX App Suite email platform sold to providers and governments
- Open-Xchange is open source and self-hostable, according to its own site.
- Open-Xchange also covers calendar.
- Jace AI also covers chat assistant, inbox filtering, workflow automation and AI agents.
- Free
Cypht
Open-source webmail that combines many accounts in one inbox
- Cypht is free. Jace AI starts at $20 per month, billed yearly ($25 billed monthly).
- Cypht has a free plan. Jace AI does not, though it has a free trial.
- Cypht is open source and self-hostable, according to its own site.
- Jace AI also covers chat assistant, workflow automation and AI agents.
- Free trial
GFI KerioConnect
Self-hosted business mail server with calendar, chat and local AI
- Only GFI KerioConnect lists Windows, macOS and Linux apps.
- Only Jace AI lists a web app.
- GFI KerioConnect is self-hostable, according to its own site.
- GFI KerioConnect also covers calendar and shared inbox.
- Paid
Zimbra
Self-hosted email, calendar and file sharing for organizations
- Only Zimbra lists Windows, macOS, Linux, iOS and Android apps.
- Zimbra is open source and self-hostable, according to its own site.
- Zimbra also covers tasks and calendar.
- Jace AI also covers chat assistant, inbox filtering, workflow automation and AI agents.
- Free
Roundcube
Free open-source webmail client you host yourself
- Roundcube is free. Jace AI starts at $20 per month, billed yearly ($25 billed monthly).
- Roundcube has a free plan. Jace AI does not, though it has a free trial.
- Roundcube is open source and self-hostable, according to its own site.
- Jace AI also covers chat assistant, inbox filtering, workflow automation and AI agents.
- Free
SOGo
Open-source groupware with webmail, calendars and contacts
- SOGo is free. Jace AI starts at $20 per month, billed yearly ($25 billed monthly).
- SOGo has a free plan. Jace AI does not, though it has a free trial.
- SOGo is open source and self-hostable, according to its own site.
- SOGo also covers calendar.
- Free
Horde
Free open-source webmail, calendar, contacts and tasks suite
- Horde is free. Jace AI starts at $20 per month, billed yearly ($25 billed monthly).
- Horde has a free plan. Jace AI does not, though it has a free trial.
- Horde is open source and self-hostable, according to its own site.
- Horde also covers notes, tasks and calendar.
- Free
mailcow
Dockerized open-source mail server with a web admin UI
- mailcow is free. Jace AI starts at $20 per month, billed yearly ($25 billed monthly).
- mailcow has a free plan. Jace AI does not, though it has a free trial.
- mailcow is open source and self-hostable, according to its own site.
- mailcow also covers calendar.
- Free
Mail-in-a-Box
Free script that turns a cloud server into your own mail server
- Mail-in-a-Box is free. Jace AI starts at $20 per month, billed yearly ($25 billed monthly).
- Mail-in-a-Box has a free plan. Jace AI does not, though it has a free trial.
- Mail-in-a-Box is open source and self-hostable, according to its own site.
- Mail-in-a-Box also covers calendar.
- Free plan · from $2.40/yr
Stalwart Mail Server
Open-source mail and collaboration server written in Rust
- Stalwart Mail Server starts at $2.40 per mailbox / year, billed annually (25-mailbox minimum). Jace AI starts at $20 per month, billed yearly ($25 billed monthly).
- Stalwart Mail Server has a free plan. Jace AI does not, though it has a free trial.
- Stalwart Mail Server is open source and self-hostable, according to its own site.
- Stalwart Mail Server also covers calendar, file sharing and dMARC.
Common questions
Is there a self-hosted alternative to Jace AI?
Yes. Inbox Zero, Zero Mail, Open-Xchange, Cypht, GFI KerioConnect, Zimbra, Roundcube, SOGo and 17 more can be self-hosted, according to their own sites.
Can Jace AI be self-hosted?
The Jace AI listing does not say it can be self-hosted. The listing was checked on Oct 9, 2026 against the pages it cites.
Which of these email apps are free?
Zero Mail, Cypht, Roundcube, SOGo, Horde, mailcow, Mail-in-a-Box, Stalwart Mail Server and 11 more are free or have a free plan.
When was this checked?
Each listing shows its own date. On this page they run from Oct 9, 2026 to Nov 13, 2026. Vendors change prices and plans without notice, so confirm on their site before you buy.
This page is built from the listings. A tool is here because its listing says so, and the order is how close each is to Jace AI: the alternatives its listing names first, then the tools that share the most features with it.