# 3 Best Open Source Alternatives for Shortwave

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

Looking for the best open source alternative for Shortwave? Compare 3 verified free and open source alternatives to Shortwave (Macro Mail, Inbox Zero, Twake Mail) with license details, self-hosting requirements, and practical trade-offs.

## Shortwave Overview & Subscription Cost
- **Product**: Shortwave
- **Category**: [email](https://caniforkit.com/category/email)
- **Paid Subscription Price**: $15/month per seat
- **1-Seat Annualized Cost**: $180/year
- **5-Person Team Annualized Cost**: $900/year
- **10-Person Team Annualized Cost**: $1,800/year
- **Can I Vibe-Code / Rebuild It Myself?**: NO (use a free alternative, save the tokens)
- **Rebuild Verdict**: Instead of paying recurring SaaS fees for Shortwave or rebuilding it from scratch, deploy one of the 3 battle-tested open-source alternatives like Macro Mail.

## Verified Free & Open Source Alternatives

| Alternative | Type | License | Runs On | GitHub Stars | Head-to-Head |
| --- | --- | --- | --- | --- | --- |
| [Macro Mail](https://caniforkit.com/fork/macro-mail) | Open Source | Open Source | Local | ★ 6.2k | [Compare vs Shortwave](https://caniforkit.com/vs/shortwave-vs-macro-mail) |
| [Inbox Zero](https://caniforkit.com/fork/inboxzero) | Open Source | Open Source | Local | ★ 12.9k | [Compare vs Shortwave](https://caniforkit.com/vs/shortwave-vs-inboxzero) |
| [Twake Mail](https://caniforkit.com/fork/twake-mail) | Open Source | Open Source | Local | ★ 666 | [Compare vs Shortwave](https://caniforkit.com/vs/shortwave-vs-twake-mail) |

## In-Depth Alternative Profiles

### Macro Mail
- **Fork Page**: [Macro Mail Profile](https://caniforkit.com/fork/macro-mail)
- **Head-to-Head Comparison**: [Shortwave vs Macro Mail](https://caniforkit.com/vs/shortwave-vs-macro-mail)
- **Official Website**: https://macro.com/email/
- **Source Code Repository**: https://github.com/macro-inc/macro
- **License**: Open Source
- **Runs On**: Local
- **GitHub Stars**: 6.2k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: desktop, cross-platform, one-click install
- **Summary**: An AI-powered email client that combines inbox management, chat, tasks, and AI agents in one shared workspace, built for keyboard-driven workflows.
- **The Catch vs Shortwave**: Community-driven open source project without dedicated enterprise SLAs.
- **Installation**: Clone https://github.com/macro-inc/macro or deploy with Docker Compose
- **Setup**: Download the native package or installer for your operating system.
- **Data Storage**: All application data lives locally on your own machine.

### Inbox Zero
- **Fork Page**: [Inbox Zero Profile](https://caniforkit.com/fork/inboxzero)
- **Head-to-Head Comparison**: [Shortwave vs Inbox Zero](https://caniforkit.com/vs/shortwave-vs-inboxzero)
- **Official Website**: https://getinboxzero.com/
- **Source Code Repository**: https://github.com/elie222/inbox-zero
- **License**: Open Source
- **Runs On**: Local
- **GitHub Stars**: 12.9k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: desktop, cross-platform, one-click install
- **Summary**: Automates Gmail and Outlook with AI-drafted replies, bulk unsubscribe, cold email blocking, attachment filing, and inbox analytics for individuals and teams.
- **The Catch vs Shortwave**: Community-driven open source project without dedicated enterprise SLAs.
- **Installation**: Clone https://github.com/elie222/inbox-zero or deploy with Docker Compose
- **Setup**: Download the native package or installer for your operating system.
- **Data Storage**: All application data lives locally on your own machine.

### Twake Mail
- **Fork Page**: [Twake Mail Profile](https://caniforkit.com/fork/twake-mail)
- **Head-to-Head Comparison**: [Shortwave vs Twake Mail](https://caniforkit.com/vs/shortwave-vs-twake-mail)
- **Official Website**: https://twake-mail.com
- **Source Code Repository**: https://github.com/linagora/tmail-flutter
- **License**: Open Source
- **Runs On**: Local
- **GitHub Stars**: 666
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: desktop, cross-platform, one-click install
- **Summary**: Open source professional email solution with PGP encryption, JMAP protocol, AI-powered responses, and advanced antispam protection. Control your data privately.
- **The Catch vs Shortwave**: Community-driven open source project without dedicated enterprise SLAs.
- **Installation**: Clone https://github.com/linagora/tmail-flutter or deploy with Docker Compose
- **Setup**: Download the native package or installer for your operating system.
- **Data Storage**: All application data lives locally on your own machine.

## Frequently Asked Questions

### What is the best free alternative to Shortwave?
The top free alternative to Shortwave is Macro Mail (open source, Open Source). An AI-powered email client that combines inbox management, chat, tasks, and AI agents in one shared workspace, built for keyboard-driven workflows. Other popular Shortwave replacements include Inbox Zero, Twake Mail.

### How much does switching from Shortwave to a free alternative save?
Shortwave starts at $15/month per seat ($180/year). Switching a 5-person team to a free alternative like Macro Mail saves $900 per year in software subscription fees.

### What is the catch when switching away from Shortwave?
While Macro Mail replaces core Shortwave features without subscription fees, the real-world trade-off is: Community-driven open source project without dedicated enterprise SLAs.

## Related

- [email Software Category Hub](https://caniforkit.com/category/email)
- [All Paid SaaS Alternatives Index](https://caniforkit.com/alternatives)
- [Self-Hosted Software Directory](https://caniforkit.com/self-hosted)
- [Homepage](https://caniforkit.com)