Can I open-source Missive?
YES · mature open-source replacementYes. Chatwoot (36k stars), Listmonk (22k stars), Stalwart (8k stars) are mature open-source replacements for Missive — self-host with real ops work and stop paying $18/mo.
People still pay for Missive because an email client can be rebuilt; operating a trusted mail service with excellent deliverability cannot. The recurring cost buys IMAP quirks, OAuth, MIME, threading, search, attachments, offline sync, notifications, secure storage, and provider changes, not just the visible interface.
xreal-time collaboration, many channels, rules, integrations, and shared-inbox reliability
xmail hosting and deliverability
xpush on every platform
xadvanced team collaboration
xprovider-specific AI and search
These projects already replace it, free.
CChatwootCollaborative email with private notes, mentions and ownership; also handles chat when Missive was doing too much.open source↗ZZammadA mature team inbox with internal notes and ticket owners; it feels like support software because it is.open source↗FFreeScoutShared mailboxes, internal notes and assignments without seat fees; chat-style polish is traded for server care.open source↗What each one is, in full: Chatwoot · Zammad · FreeScout
all 6 open-source alternatives to Missive →· no votes, no pay-to-list · just what's real
Missive pricing
| plan | monthly | annual (per mo) | what you get |
|---|---|---|---|
| free | $0/user | $0/user | Up to 3 users; 15 days of email and chat history. |
| starter | $18/user | $14/user | Up to 5 users; unlimited history; up to 10 personal accounts and 5 shared accounts per user; no rules, integrations, analytics, API or AI. |
| productive | $30/user | $24/user | Up to 50 users; up to 1,000 rules; unlimited history; basic analytics, API, integrations and AI. |
| business | $45/user | $36/user | Unlimited users; up to 1,000 rules; unlimited history; advanced analytics, SAML SSO and IP restrictions. |
free tierUp to 3 users; 15 days of email and chat history
billingmonthly + annual (-20%); 30-day free trial, no card
hidden costsShared accounts are capped at 5 per user; each additional block of 5 shared accounts costs $15/month. Productive and Business AI can use prepaid Missive credits (accounts begin with $5) with a 25% markup over provider cost, or the customer's own API key; annual seats removed mid-term remain billed but can be reassigned.
verified 2026-08-12 · source ↗
Can I open-source Missive?
Yes. Chatwoot replaces Missive today — self-host it on your own server or machine with no subscription. The full list of open-source alternatives is on this page.
How much does Missive cost?
Missive costs about $18/month (Starter, checked 2026-07-31), which is $216 per year. That's what you save by replacing it with open source.
What do I lose by replacing Missive?
Honestly: real-time collaboration, many channels, rules, integrations, and shared-inbox reliability; mail hosting and deliverability; push on every platform; advanced team collaboration; provider-specific AI and search. If any of those are load-bearing for you, keep paying.
Is there an open-source alternative to Missive?
Yes: Chatwoot (Collaborative email with private notes, mentions and ownership; also handles chat when Missive was doing too much.) Zammad (A mature team inbox with internal notes and ticket owners; it feels like support software because it is.) FreeScout (Shared mailboxes, internal notes and assignments without seat fees; chat-style polish is traded for server care.) All 6 curated open-source alternatives are at caniopensourceit.online/missive/alternatives.