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

UnInbox

Open source alternative to Front, Help Scout and Missive

A collaborative email platform with shared inboxes, infinite addresses, and per-email workflows designed to enhance team productivity.

1.7K starsTypeScriptUpdated this year

Repository

Stars
1.7K
Forks
125
Last commit
120 days ago
Last verified
May 13, 2026
Repo
un/inbox ↗

Additional details

Visit websiteGitHub repo
image of UnInbox
Contents
  1. 01Who UnInbox is for
  2. 02The problem it solves
  3. 03How it solves it
  4. 04Strengths and trade-offs
  5. 05Tech stack
  6. 06FAQ
  7. 07Similar open-source tools
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.TypeScript · 1.7K stars · Updated this year

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
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?
Is UnInbox a Front alternative?
Who is UnInbox best for?
also worth a look

Similar open-source tools#

Docmost

Docmost

Self-hosted collaborative wiki and documentation tool

20.1KTypeScriptAGPL-3.0
Language
TypeScript
Open issues
42
Contributors
41
First release
2023

Categories

Communication & CollaborationBusiness & ProductivityIT Management

Tags

EmailWorkflow AutomationSelf HostedCustomer SupportTask ManagementOpen Core

The problem it solves#

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

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

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.

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