addy.io
Intermediate Recommendedaddy.io is a solid option in the Email Aliases category. Open source email aliasing service. Formerly AnonAddy, rebranded to addy.io in August 2023. Create unlimited aliases to protect your real address.
Information verified on July 22, 2026
Description
addy.io (formerly AnonAddy) creates email aliases on the fly for every site or service. If an alias gets compromised, you cut it without touching your real address. The service is open source, self-hostable, and offers a generous free plan. Compared to SimpleLogin (acquired by Proton), addy.io remains independent and offers more shared domains on the free tier.
Key features
- Unlimited standard aliases (10 shared-domain aliases on free)
- Custom domains
- Advanced filtering rules
- Integrated PGP
- Open source
- Complete API
Strengths
- + Open source and self-hostable
- + Very flexible for advanced users
- + Fine-grained control over alias management
Weaknesses
- − Less user-friendly interface than SimpleLogin
- − More technical setup for self-hosting
Recommended for
- Intermediate or advanced users
- People wanting to self-host the service
- Fine-grained alias control needs
Comparison
The independent alternative to SimpleLogin. addy.io offers more shared domains on the free plan and remains self-hostable. SimpleLogin has the advantage of Proton integration.
This topic is chapter 4 of my book
It answers these questions, among others:
- how do you migrate twenty years of email without losing a message or a contact?
- which address can no one ever take away from you, and how do you get it?
- and what do you do with the hundreds of accounts tied to your Gmail?
Forthcoming 22/10/2026 from Éditions Eyrolles
Frequently asked questions
How much does addy.io cost?
Free (unlimited standard aliases). Lite at $1/month, Pro at $3/month (annual).
Is migrating to addy.io difficult?
Estimated difficulty: Easy (2/5). More technical initial setup. Higher learning curve than SimpleLogin. Powerful features for advanced users.
Who is addy.io for?
You want maximum email anonymity, with advanced aliases. A free and open alternative to SimpleLogin.
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