# Inbox Zero: Free Open Source Alternative to Cora, Demi AI, Fyxer

Canonical: https://caniforkit.com/fork/inboxzero
Last updated: 2026-11-07

Inbox Zero (Open Source, Open Source) replaces Cora, Demi AI, Fyxer, Jace. Automates Gmail and Outlook with AI-drafted replies, bulk unsubscribe, cold email blocking, attachment filing, and inbox analytics for individuals and teams.

## Tool Specifications
- **Tool Name**: Inbox Zero
- **Type**: Open Source Project
- **License**: Open Source
- **Official Website**: https://getinboxzero.com/
- **GitHub Repository**: https://github.com/elie222/inbox-zero
- **GitHub Stars**: ★ 12.9k
- **Runs On**: Local
- **Maintenance Status**: nov 2026
- **Platforms**: desktop, cross-platform, one-click install
- **Data Storage**: All application data lives locally on your own machine.
- **Installation**: Clone https://github.com/elie222/inbox-zero or deploy with Docker Compose
- **Setup Requirements**: Download the native package or installer for your operating system.
- **The Catch / Limitation**: Community-driven open source project without dedicated enterprise SLAs.

## Paid SaaS Applications Replaced (8)
Replacing these paid tools with Inbox Zero saves up to $180/mo ($2,160/yr) in software subscriptions:

| Replaced Software | Category | SaaS Price | Comparison Guide |
| --- | --- | --- | --- |
| [Cora](https://caniforkit.com/cora) | [dev tools](https://caniforkit.com/category/dev-tools) | $25/mo | [Compare Cora vs Inbox Zero](https://caniforkit.com/vs/cora-vs-inboxzero) |
| [Demi AI](https://caniforkit.com/demi-ai) | [dev tools](https://caniforkit.com/category/dev-tools) | $25/mo | [Compare Demi AI vs Inbox Zero](https://caniforkit.com/vs/demi-ai-vs-inboxzero) |
| [Fyxer](https://caniforkit.com/fyxer) | [dev tools](https://caniforkit.com/category/dev-tools) | $25/mo | [Compare Fyxer vs Inbox Zero](https://caniforkit.com/vs/fyxer-vs-inboxzero) |
| [Jace](https://caniforkit.com/jace) | [dev tools](https://caniforkit.com/category/dev-tools) | $25/mo | [Compare Jace vs Inbox Zero](https://caniforkit.com/vs/jace-vs-inboxzero) |
| [Scape](https://caniforkit.com/scape) | [dev tools](https://caniforkit.com/category/dev-tools) | $25/mo | [Compare Scape vs Inbox Zero](https://caniforkit.com/vs/scape-vs-inboxzero) |
| [Serif](https://caniforkit.com/serif) | [dev tools](https://caniforkit.com/category/dev-tools) | $25/mo | [Compare Serif vs Inbox Zero](https://caniforkit.com/vs/serif-vs-inboxzero) |
| [Shortwave](https://caniforkit.com/shortwave) | [email](https://caniforkit.com/category/email) | $15/mo | [Compare Shortwave vs Inbox Zero](https://caniforkit.com/vs/shortwave-vs-inboxzero) |
| [Superhuman Mail](https://caniforkit.com/superhuman-mail) | [email](https://caniforkit.com/category/email) | $15/mo | [Compare Superhuman Mail vs Inbox Zero](https://caniforkit.com/vs/superhuman-mail-vs-inboxzero) |

## Frequently Asked Questions

### Is Inbox Zero free and open source?
Inbox Zero is an open source tool licensed under Open Source that runs on local. Automates Gmail and Outlook with AI-drafted replies, bulk unsubscribe, cold email blocking, attachment filing, and inbox analytics for individuals and teams.

### What is the trade-off or limitation of using Inbox Zero?
Community-driven open source project without dedicated enterprise SLAs.

## Related

- [Self-Hosted Open Source Directory](https://caniforkit.com/self-hosted)
- [All Paid SaaS Alternatives Index](https://caniforkit.com/alternatives)
- [Software Categories Directory](https://caniforkit.com/categories)
- [Homepage](https://caniforkit.com)