Alternatives to addy.io
Open source anonymous email forwarding
addy.io ranks #3 of 10 in Email alias services, with an Alt Score of 90. It is licensed under AGPL-3.0, freemium and available on Web, iOS, Android and Browser extension. 8 of 9 checklist rows are verified against a public source.
Privacy-conscious individuals and teams who want to stop giving out their real email address to every website, and organizations that want a self-hosted alternative to commercial alias services.
Unlimited email aliases (custom or randomly generated) that forward to your real inbox, with the ability to deactivate or delete any alias the moment it starts getting spam. You can reply and send new mail anonymously from an alias, use your own custom domain with catch-all support, and optionally encrypt forwarded mail with GPG/OpenPGP. Browser extensions and iOS/Android apps are available for creating aliases on the fly, plus a developer API for automation.
Mail sent to an alias (e.g. [email protected]) is received by addy.io and forwarded to your real address, while replies sent from the alias route back out through addy.io so the recipient never sees your real email. The full codebase is open source and can be self-hosted, or used via the hosted addy.io service.
Where addy.io stands out
Verified capabilities most alternatives don't have.
Why people leave addy.io
Dashed reasons are sourced facts; the rest are opinions. Vendors can dispute.
Sign in to add a reason — new reasons go through moderation before appearing.
Ranked alternatives
Ordered by Alt Score. Click any score to see the breakdown.
Forward Email is a fully open-source email forwarding provider that lets users send and receive mail as unlimited aliases on their own custom domains, with IMAP/POP3/SMTP support.
33mail is a long-running (since 2011) email aliasing service that generates unlimited disposable forwarding addresses to protect a user's real inbox, with anonymous reply and a Chrome extension.
AliasVault is an open-source, end-to-end encrypted password manager with a built-in email alias generator and mail server, positioned explicitly as an open-source alternative to SimpleLogin.
ImprovMX is a widely used email forwarding service that turns a custom domain into unlimited catch-all-capable aliases forwarding to any inbox, with a generous free tier and paid plans adding SMTP sen.
Burner Mail is a browser-extension-driven email alias service that auto-fills disposable forwarding addresses on signup forms, supports replying from an alias through the user's normal inbox, and offe.
Feature comparison
How addy.io compares with its alternatives, feature by feature.
| Email alias services checklist | addy.io | SimpleLogin | Forward Email | Firefox Relay | 33mail | AliasVault |
|---|---|---|---|---|---|---|
| Pricing model | ||||||
| Starts at | ||||||
| License | ||||||
| Platforms | ||||||
| Unlimited aliases (paid) | ||||||
| Custom domains | ||||||
| Reply from alias | ||||||
| Browser extension | ||||||
| Self-hostable | ||||||
| Open source | ||||||
| PGP encryption | ||||||
| Free tier limits | ||||||
| Catch-all support |
Every fact and feature listed for addy.io is verified against its own pages. Each alternative is sourced on its own page.
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License AGPL-3.0 verified 2026-07-08
Repo license label.
AGPL-3.0
https://github.com/anonaddy/anonaddy -
Pricing model Freemium verified 2026-07-08
addy.io offers a generous Free plan so you can use email aliases to protect your real address without paying anything. The Free plan includes unlimited standard aliases (within your monthly bandwidth
https://addy.io/faq -
Platforms Web, iOS, Android, Browser extension verified 2026-07-08
Yes there is an open-source browser extension available to download for Firefox, Chrome, Edge and Safari. ... Yes, there's the official open-source iOS app ... Yes, there's the official open-source An
https://addy.io/faq -
Status active verified 2026-07-08
Frequent releases; 4.7k stars.
Version 1.6.4 released July 2, 2026
https://github.com/anonaddy/anonaddy -
Unlimited aliases (paid) Yes verified 2026-07-08
Unlimited standard aliases even on Free (bandwidth-limited); paid lifts bandwidth.
The Free plan includes unlimited standard aliases (within your monthly bandwidth limit)
https://addy.io/faq -
Custom domains Yes verified 2026-07-08
Other paid-only features include custom domains, additional usernames, rules, blocklist, access to some alias domains
https://addy.io/faq -
Reply from alias Yes verified 2026-07-08
the most common example is replying to and sending from an alias (anonymous replies and new outbound mail from your alias address). These are not included on the Free plan.
https://addy.io/faq -
Browser extension Yes verified 2026-07-08
Yes there is an open-source browser extension available to download for Firefox, Chrome, Edge and Safari
https://addy.io/faq -
Self-hostable Yes verified 2026-07-08
you can always just fire up your own server and self-host this application. You'll need to know about server administration and PHP.
https://addy.io/faq -
Open source Yes verified 2026-07-08
addy.io is independently run and open-source; there is no venture capital funding
https://addy.io/faq -
Free tier limits Yes verified 2026-07-08
Free plan is bandwidth-capped.
The Free plan includes unlimited standard aliases (within your monthly bandwidth limit)
https://addy.io/faq -
Catch-all support Yes verified 2026-07-08
username subdomains (e.g. @johndoe.anonaddy.com) have catch-all enabled. This means that they will automatically create any alias the first time an email is sent to it
https://addy.io/faq
FAQ
Yes. SimpleLogin, Forward Email and Firefox Relay have a free tier or are fully free. Free-tier limits in the comparison table are verified and dated.
SimpleLogin, Forward Email and Firefox Relay — every license claim links its source.