# 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. Source: https://altcatalog.com/alternatives/addyio/ Category: Email alias services ## Where addy.io stands out - **Self-hostable** — 4 of 9 apps with a verified answer have this ## Overview - **Who it's for**: 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. - **What you get**: 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. - **How it works**: Mail sent to an alias (e.g. anything@yourname.addy.io) 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. ## Profile - **License**: AGPL-3.0 (verified 2026-07-08) - **Pricing model**: Freemium (verified 2026-07-08) - **Starts at**: ? - **Platforms**: Web, iOS, Android, Browser extension - **Status**: active (verified 2026-07-08) ## Ranked alternatives | # | App | Alt Score | Licence | Platforms | |---|-----|-----------|---------|-----------| | 1 | [SimpleLogin](https://altcatalog.com/alternatives/simplelogin.md) | 100 | AGPL-3.0 | Web, Browser extension, iOS, Android | | 2 | [Forward Email](https://altcatalog.com/alternatives/forward-email.md) | 90 | BUSL-1.1 | Windows, macOS, Linux, iOS | | 3 | [Firefox Relay](https://altcatalog.com/alternatives/firefox-relay.md) | 75 | MPL-2.0 | ? | | 4 | [33mail](https://altcatalog.com/alternatives/33mail.md) | 60 | ? | Web | | 5 | [AliasVault](https://altcatalog.com/alternatives/aliasvault.md) | 60 | AGPL-3.0 | Windows, macOS, Linux, iOS | | 6 | [ImprovMX](https://altcatalog.com/alternatives/improvmx.md) | 55 | Proprietary | Web | | 7 | [Apple Hide My Email](https://altcatalog.com/alternatives/apple-hide-my-email.md) | 45 | Proprietary | iOS, macOS, Web | | 8 | [DuckDuckGo Email Protection](https://altcatalog.com/alternatives/duckduckgo-email-protection.md) | 40 | Proprietary | Web, Browser extension, iOS, Android | | 9 | [Burner Mail](https://altcatalog.com/alternatives/burnermail.md) | 30 | ? | Web, Browser extension | Alt Score = Verified coverage (90%) + Visibility (10%). See https://altcatalog.com/how-alt-score-works/ ## Feature comparison Legend: Yes / No / Partial / ? (not verified). | Email alias services checklist | addy.io | SimpleLogin | Forward Email | Firefox Relay | 33mail | AliasVault | |---|---|---|---|---|---|---| | Pricing model | Freemium | Freemium | Freemium | Freemium | Freemium | Freemium | | Starts at | ? | $36/year | $3/mo | ? | $1/mo | Free | | License | AGPL-3.0 | AGPL-3.0 | BUSL-1.1 | MPL-2.0 | ? | AGPL-3.0 | | Platforms | Web, iOS, Android, Browser extension | Web, Browser extension, iOS, Android | Windows, macOS, Linux, iOS, Android, Web | ? | Web | Windows, macOS, Linux, iOS, Android, Web, Browser extension | | Unlimited aliases (paid) | Yes | Yes | Yes | Yes | Yes | Partial | | Custom domains | Yes | Yes | Yes | Yes | Yes | Partial | | Reply from alias | Yes | Yes | Yes | Yes | Yes | No | | Browser extension | Yes | Yes | No | Yes | ? | Yes | | Self-hostable | Yes | Yes | Yes | Partial | ? | Yes | | Open source | Yes | Yes | Yes | Yes | ? | Yes | | PGP encryption | ? | Yes | Yes | ? | ? | No | | Free tier limits | Yes | Yes | Yes | Yes | Yes | Yes | | Catch-all support | Yes | Yes | Yes | ? | Yes | ? | ## Sources Sources for addy.io. Each alternative is sourced on its own page. - **License**: AGPL-3.0 — (verified 2026-07-08) - Note: Repo license label. - Quote: “AGPL-3.0” - **Pricing model**: Freemium — (verified 2026-07-08) - Quote: “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 ” - **Platforms**: Web, iOS, Android, Browser extension — (verified 2026-07-08) - Quote: “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” - **Status**: active — (verified 2026-07-08) - Note: Frequent releases; 4.7k stars. - Quote: “Version 1.6.4 released July 2, 2026” - **Unlimited aliases (paid)**: Yes — (verified 2026-07-08) - Note: Unlimited standard aliases even on Free (bandwidth-limited); paid lifts bandwidth. - Quote: “The Free plan includes unlimited standard aliases (within your monthly bandwidth limit)” - **Custom domains**: Yes — (verified 2026-07-08) - Quote: “Other paid-only features include custom domains, additional usernames, rules, blocklist, access to some alias domains” - **Reply from alias**: Yes — (verified 2026-07-08) - Quote: “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.” - **Browser extension**: Yes — (verified 2026-07-08) - Quote: “Yes there is an open-source browser extension available to download for Firefox, Chrome, Edge and Safari” - **Self-hostable**: Yes — (verified 2026-07-08) - Quote: “you can always just fire up your own server and self-host this application. You'll need to know about server administration and PHP.” - **Open source**: Yes — (verified 2026-07-08) - Quote: “addy.io is independently run and open-source; there is no venture capital funding” - **Free tier limits**: Yes — (verified 2026-07-08) - Note: Free plan is bandwidth-capped. - Quote: “The Free plan includes unlimited standard aliases (within your monthly bandwidth limit)” - **Catch-all support**: Yes — (verified 2026-07-08) - Quote: “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” --- Ranked by verified data, never by who paid. https://altcatalog.com/trust/