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Home/Categories/Communication & Collaboration/UnInbox
icon of UnInbox

UnInbox

Open source alternative to Front, Help Scout, Missive and Superhuman

  • 1.8K stars
  • AGPL-3.0
  • Updated this year
  • Last commit 252 days ago

Last verified Oct 13, 2026

Streamline team email with shared inboxes, workflow states, and self-hosted collaboration built for support, sales, and operations teams.

Visit websiteGitHub1.8K starsDeploy on Hostinger
image of UnInbox
TL;DR

UnInbox is communication infrastructure for shared email, team inboxes, conversations, and workflow around inbound messages. It replaces older shared-inbox tools like Front or Missive for teams that want more control over email operations. Best for teams treating email as collaborative work rather than individual mailboxes.

Read the full breakdownHide the full breakdownWho it is for, how it works, trade-offs and the FAQ
who it's for

Who UnInbox is for#

Small teams sharing customer email

Use UnInbox when support, sales, or operations messages need shared ownership and workflow rather than a single mailbox.

Skip if:

You need the mature integrations, support SLAs, and compliance coverage of an established shared-inbox SaaS.

Builders evaluating open email infrastructure

Use UnInbox as a source-accessible foundation for modern team email and communication workflows.

Skip if:

Your team only needs a personal email client.

the problem

The problem it solves#

Team email breaks when important messages sit inside one person's inbox. Support, sales, operations, and partnerships all need shared ownership, but traditional email clients were built around individual accounts.

Hosted shared-inbox tools solve collaboration, but they become the system of record for customer and operational communication. Teams that want control over infrastructure and data need a more inspectable path.

how UnInbox solves it

How it solves it#

Shared inbox workflow

Organizes inbound communication for teams rather than individual mailboxes, making assignment and follow-up easier to track.

Conversation-centered communication

Frames email and team communication around conversations, which helps teams manage customer or operational threads as shared work.

Open communication infrastructure

Provides source-accessible infrastructure for teams that want to own more of the email and communication layer.

strengths · trade-offs

Strengths and trade-offs#

Strengths

  • Built for collaborative emailUnInbox targets team workflows where messages need ownership, context, and handoffs instead of staying in one personal inbox.
  • Alternative to closed shared inbox suitesTeams evaluating Front, Missive, or HEY-style workflows can inspect and adapt UnInbox instead of committing all communication operations to a closed service.

Trade-offs

  • -Project maturity needs reviewUnInbox positions itself as live while still developing more features and infrastructure. Teams should validate reliability, migration paths, and maintenance activity before using it for critical support.
tech stack · detected from GitHub

What it's built on#

Languages
TypeScript
Frameworks
Next.jsReact
Databases
MySQL
Infrastructure
AWS
frequently asked

FAQ#

What is UnInbox?

UnInbox is communication infrastructure for modern email, shared inboxes, and team workflows around inbound messages.

Is UnInbox a Front alternative?

UnInbox can replace Front-style shared inbox workflows for teams that want more infrastructure control. Front remains more mature as a hosted commercial product.

Who is UnInbox best for?

UnInbox is best for teams that handle customer or operational email collaboratively and want an open path instead of a closed shared-inbox suite.

Looking for more

Other ways to replace Front, Help Scout, Missive and Superhuman#

Macro Mail

#2 in the Superhuman guide

Fast keyboard triage with chat, tasks, and agents attached

4,782 GitHub stars

Mailspring

#3 in the Superhuman guide

Fast desktop drop-in with a unified inbox

17,934 GitHub stars

Thunderbird

#4 in the Superhuman guide

Proven, extensible desktop email client

210 GitHub stars

NeoMutt

#5 in the Superhuman guide

Keyboard-first terminal triage

3,854 GitHub stars
All 8 Superhuman alternatives7 open source Superhuman alternatives, ranked
by category

Open source tools in these categories#

126

Communication & Collaboration

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Business & Productivity

OpenClaw, Excalidraw, RustDesk123

IT Management

RustDesk, Immich, Stirling PDF
Hostinger

Run UnInbox on your own server

Self-host UnInbox on a Hostinger VPS.

Deploy on Hostinger

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