Email alias services give each website its own forwarding address, so a leaked or sold address can be switched off without touching your real inbox.
This guide ranks small, independent providers first and judges alias allowances, custom domains, reply support, what each plan costs and whether the vendor names itself.
Vendors can pay for more visibility on this website, for example a higher place in a ranking or more room on a page. Commercial relationships can also affect which products we feature and how prominently. Every vendor link is marked the same, whatever the arrangement behind it. How that works.
In short
What email alias services software does
An email alias service creates forwarding addresses that deliver to your real mailbox, letting you sign up anywhere, reply anonymously and disable any single address that starts attracting spam.
Ranking criteria for this email alias services tool list, applied top to bottom: effort to get started, cost in practice, data return, ability to leave, buyer fit. Top three places belong to challengers outside the best-known brands whenever possible, and incumbents follow from four. Reasons for the choice of tests, and for skipping a score out of ten, can be read on the how we work page.
Forwarding aliases with custom domains, published under the AGPL and self-hostable
Ranked #1 of 11 in Best Email Alias Services in 2026.
Free tierSelf-hostablePublished pricingElsewhere
The pricing ladder is the real draw here. Free allows 10 shared-domain aliases and one recipient, Lite adds one custom domain, and Pro lifts aliases to unlimited with 20 custom domains and 30 recipients.
Duo and Family give each member Pro limits on a separate account. Self-hosting needs an Ubuntu server, Postfix, DNS control and a host that allows port 25, so it is a weekend project, not a toggle.
What stands out
AGPL-3.0 source code
Self-hosting guide
Custom domains from Lite
Where it costs you
The free plan carries 10MB of bandwidth a month, which a single newsletter can use up.
The pages read name no company, address or country, only the governing law.
Right for
Tinkerers who want inexpensive aliases and a way to run the whole service themselves
Wrong for
Anyone who needs a named legal entity on the contract
Not stated by the vendorPublished monthly or yearly plans from a zero-cost entry level up to Pro, plus Duo and Family bundles; the pricing page names no trial
Unlimited aliases on every plan, with reply quotas that rise by tier
Ranked #2 of 11 in Best Email Alias Services in 2026.
Published pricingElsewhere
Reply allowance is the sorting feature. Premium gives 20 anonymous replies a day, Pro 100 and Enterprise 1,000, each with more custom domains and usernames (1, 5, unlimited).
Alias count never rises, because it is unlimited from the start. That makes the choice about bandwidth and replies rather than addresses. Forwarding address limits are not stated, and no licence or self-hosting route is mentioned.
What stands out
Unlimited aliases
Daily anonymous replies
Custom domains from Premium
Where it costs you
Lite has no anonymous replies, so writing back from an alias needs a paid plan.
The terms name no legal entity and refer to an unnamed parent corporation.
Right for
Sign-up-heavy users who want unlimited aliases and a cheap path to replying
Wrong for
Buyers who must know the company behind the service
Not stated by the vendorPublished monthly plans in four steps, starting with a zero-cost Lite plan; no trial is named
Masked Email built into a paid mailbox from an independent provider
Ranked #3 of 11 in Best Email Alias Services in 2026.
Published pricingAsia-Pacific
For alias buyers, Fastmail is the mailbox-first option. Masked Email is listed under Individual, Duo and Family and marked as supported on the three per-user plans, every one with a trial of up to 30 days.
Plans are priced in euros. The catch is coupling: aliases live inside the account, so leaving means rebuilding each address elsewhere. Independence is a plus, since the about page calls the company independent.
What stands out
Masked Email on all plans
Independent company
Trial of up to 30 days
Where it costs you
Masked Email arrives only with a paid mailbox, so alias use alone means a full account.
The pricing pages give no cap on masked addresses, so heavy use cannot be tested beforehand.
Right for
People who want aliases next to the inbox they already host
Wrong for
Buyers seeking a standalone forwarding layer in front of any mailbox
AustraliaPublished euro plans per account or per user, billed monthly or yearly, with a 30-day trial on every plan
The paid plan is one flat price per account, not per alias. Premium unlocks unlimited aliases and mailboxes, unlimited custom domains, five subdomains, 50 directories and catch-all. Apps cover iOS, Android, Chrome, Firefox and web, and YubiKey is mentioned.
An FAQ offers a trial of all premium features without stating its length, so ask before you rely on it. Because the service sits inside Proton AG, a buyer who dislikes suites should weigh that too.
What stands out
Open source
Custom domains and PGP
Browser and mobile apps
Where it costs you
The free plan stops at 10 aliases and a single mailbox.
The terms link the code but do not name its licence, so reuse rights cannot be confirmed.
Right for
Users who want a dedicated alias tool with PGP and many custom domains
Wrong for
People who avoid a service owned by a larger suite
SwitzerlandPublished yearly or monthly Premium plan per account with a zero-cost entry plan; a trial exists with no stated length
Hide-my-email aliases bundled inside a Swiss password manager and wider suite
Ranked #5 of 11 in Best Email Alias Services in 2026.
Free tierPublished pricingEurope
Within this category Proton Pass is the vault-plus-alias route. The free plan gives 10 hide-my-email aliases, while Pass Plus, Pass Family and Proton Unlimited make them unlimited, and Pass Plus adds a custom domain.
The price therefore buys more than forwarding. It shares its owner with SimpleLogin, so comparing the two means comparing one vendor's two shapes of the same feature.
What stands out
Unlimited aliases when paid
Bundled password manager
Custom domain on Pass Plus
Where it costs you
Ten aliases on the free plan run out quickly if you sign up widely.
Aliases are packaged inside a password manager, so forwarding-only buyers pay for extras.
Right for
Users who want aliases and stored logins managed from one account
Wrong for
Anyone who only wants cheap forwarding and no other product
SwitzerlandFree plan with a set alias allowance, published yearly paid plans for one person, a family or the full Proton bundle
Encrypted mailbox with extra addresses and custom domains on paid plans
Ranked #6 of 11 in Best Email Alias Services in 2026.
Free tierOpen sourcePublished pricingEurope
As an alias provider, Tuta counts addresses rather than forwarding rules: the 20 GB plan includes 15 extra addresses and 3 custom domains, the 500 GB plan 30 addresses and 10 domains.
Base prices for those tiers were not shown on the page read, only add-on costs per user. Open source under GPL-3.0 is a trust signal, and Tutao GmbH names its Hanover address. Treat it as an inbox choice that happens to include aliases.
What stands out
Extra addresses per plan
GPL-3.0 source code
Custom domains on paid plans
Where it costs you
The free plan lists no aliases or custom domains, so allowances begin on paid tiers.
Paid plans give a fixed 15 or 30 extra addresses, not one per sign-up.
Right for
Users wanting a few permanent addresses inside an encrypted mailbox
Wrong for
Anyone creating a new throwaway address for every website
GermanyFree mailbox plus paid tiers with add-on prices per user; base prices are not shown on the pricing page read
Zero-cost forwarding addresses that strip hidden trackers from mail
Ranked #7 of 11 in Best Email Alias Services in 2026.
Free tierPublished pricingElsewhere
The product is narrow by design: create private addresses, forward mail to your current account and remove hidden trackers on the way.
The help page lists no custom domain, reply or paid alias tier, and the FAQ question on address count has no answer in the text read. A separate DuckDuckGo subscription adds Personal Information Removal, which is a different purchase.
What stands out
Tracker removal
Private Duck Addresses
Works with current inbox
Where it costs you
The pages read state no limit on addresses, so capacity is unclear.
No legal entity or country appears on the about page.
Right for
People who want trackers removed and no extra account fee
Wrong for
Buyers needing custom domains or a named contract party
Not stated by the vendorFree forwarding service; the help page describes no paid tier for it, only a separate subscription add-on
Browser extension that creates a forwarding burner address per website
Ranked #8 of 11 in Best Email Alias Services in 2026.
Pricing on requestElsewhere
The workflow is the selling point: install the extension, click the icon in an email field, and a burner for that site is created and forwarded. One burner can reach several recipients, and a burner that turns into a problem can be disabled.
What the pages read do not show is what a plan costs, what it allows, or who operates the service, so treat it as unverified until you see the tiers at sign-up.
What stands out
Browser extension
Several recipients per burner
Anonymous replies
Where it costs you
The pricing page read shows no plans or prices, so the cost cannot be compared.
A banner announces the end of the zero-cost plan without saying when or what replaces it.
Right for
Browser users who like a one-click burner in every sign-up field
Wrong for
Buyers who must compare prices or name the contracting company
Not stated by the vendorPlan tiers and prices are not displayed on the pricing page read; a home-page banner announces the withdrawal of the zero-cost plan
Email masks from Mozilla with a free limit and waitlisted paid tiers
Ranked #9 of 11 in Best Email Alias Services in 2026.
Free tierPublished pricingElsewhere
The free tier is limited email protection with 5 masks. The paid ones add unlimited masks, anonymous replies and promo blocking, a Relay email domain, and phone masking in the two higher tiers, with Mozilla VPN only in the top one.
The site lists Premium availability by country, including the US, Canada and much of Europe. No self-hosting option is described in the README.
What stands out
MPL-2.0 source code
Email tracker removal
Paid phone masking
Where it costs you
Only 5 masks on the free plan, and the paid tiers show no price.
Replies and promotional blocking sit in paid tiers, which are on a waitlist.
Right for
Firefox users who need a few masks and tracker removal
Wrong for
Anyone who needs to buy a paid tier today
Not stated by the vendorFree plan with a capped mask count; paid tiers sit on a waitlist with no prices shown
Email and phone aliases sold as a personal privacy subscription
Ranked #10 of 11 in Best Email Alias Services in 2026.
Published pricingNorth America
Prices run from Individual at 14.99 monthly or 9.99 billed yearly to Couple and Family, which cover you plus one or three others. Unlimited email and phone aliases are listed, but not split by plan.
Plans are offered in the US and Canada. The bundle suits someone who wants removal included; for aliases alone it costs well above rivals. The pages read give no free trial, so the first payment comes before any test.
What stands out
Phone and email aliases
Data removal service
Individual, couple, family
Where it costs you
No free plan or trial is mentioned, so you pay before you can test.
The pricing page does not map limits to each plan.
Right for
People who want phone aliases and data removal alongside email masking
Wrong for
Buyers who need only a basic email alias
United StatesPublished subscription tiers for one person, a couple or a family, billed monthly or yearly; no trial is listed
Random forwarding addresses included in a paid iCloud+ storage plan
Ranked #11 of 11 in Best Email Alias Services in 2026.
Pricing on requestNorth America
Because it is a feature of iCloud+, its price is the storage plan: 0.99 a month at 50GB up to 59.99 at 12TB, per the US page. Any plan can be shared with up to five family members.
Hosting model and licence are not stated, and custom domains are not mentioned. It ranks last here because of its owner's scale and because aliases cannot be bought alone.
What stands out
Part of iCloud+
Reply without revealing address
Family Sharing
Where it costs you
It is tied to a paid iCloud+ plan, so there is no standalone purchase.
The page gives no separate limit on the number of addresses.
Right for
Existing iCloud+ subscribers who want aliases at no extra charge
Wrong for
Anyone outside the Apple subscription who wants a standalone alias tool
United StatesIncluded in iCloud+ plans from the 50GB step upward and shareable with five family members; no trial named
An email alias service creates forwarding addresses that deliver to your real mailbox, letting you sign up anywhere, reply anonymously and disable any single address that starts attracting spam. Differences that change the outcome seldom sit in the features. Here is the sequence we would follow.
01
Start with pricing transparency
Prices are public at 9 products (Addy.io, 33Mail, Fastmail, SimpleLogin, Proton Pass, Tuta, DuckDuckGo Email Protection, Firefox Relay, Cloaked) and on request at the remaining 2, so budget time for quotes if your favourite is in that second group.
02
Look at where the vendor sits
The vendors on this page are based in 5 countries (Elsewhere 5, Europe 3, North America 2, Asia-Pacific 1). The country of the contracting company sets which authorities can ask it for your data, whatever the hosting region.
03
Check the open source options
2 of these are open source: SimpleLogin, Tuta. Hosting one yourself trades a subscription for maintenance.
How to choose between Addy.io, 33Mail and Fastmail aliases
Start by counting how many addresses you will really create. Addy.io and 33Mail both have zero-cost plans, but Addy.io caps shared-domain aliases at 10 on its free plan while 33Mail shows unlimited aliases on every plan and limits bandwidth instead. Fastmail takes the opposite approach and sells Masked Email only inside a mailbox, with no limit stated.
Then check how mail is handled: forwarding burns through monthly bandwidth, so a service with 10MB allowance suits a few quiet accounts, not newsletters. Finally, work out whether you want a forwarding layer in front of an existing inbox or aliases built into the inbox itself. The first can be changed in an afternoon, while the second ties your sign-ups to one provider.
Estimate the number of sites you will sign up to this year
Compare monthly bandwidth, not only alias counts
Decide whether aliases should live in or in front of your mailbox
Reading alias limits on SimpleLogin, Proton Pass and Tuta
Alias allowances look similar but are counted differently. SimpleLogin and Proton Pass both start at 10 aliases on a zero-cost plan and move to unlimited on paid plans, and both belong to Proton AG, so the same company stands behind two of the names, which matters if you want to spread your risk across vendors.
Tuta works another way: its extra addresses are a fixed pool of 15 on the 20 GB plan and 30 on the 500 GB plan, and the free plan lists none. If you create a new address for every shop, a fixed pool runs out. Check also which tier unlocks a custom domain, since that is what lets you move providers later without changing every address you gave out.
Check whether the paid limit is unlimited or a fixed pool
Note that SimpleLogin and Proton Pass share an owner
Find the plan that first includes a custom domain
Free alias tools: DuckDuckGo Email Protection and Firefox Relay
DuckDuckGo Email Protection and Firefox Relay cost nothing to start, and each has its own boundary. DuckDuckGo describes a forwarding service that removes hidden trackers and states no paid tier for it, but its pages give no address limit. Firefox Relay caps the free plan at 5 masks, keeps anonymous replies and promotional blocking for paid tiers, and lists those tiers on a waitlist without prices.
Neither page set names a legal entity or country, and only DuckDuckGo says it is independent. That is acceptable for a throwaway address on a forum, and weaker for the address attached to your bank. Match the importance of the account to how much the provider says about itself, and keep a note of which address went where.
Test the free allowance with one real sign-up before relying on it
Check whether replying from an alias is included
Keep important accounts on providers that name a company
Bundled options: Cloaked and Apple Hide My Email
Cloaked and Apple Hide My Email sell aliases as part of something larger. Cloaked bundles unlimited email and phone aliases with removal of your data from over 1000 sites, and its Individual plan is billed per person with no free plan mentioned. Apple Hide My Email comes with iCloud+ from the 50GB step and can be shared with up to five family members, yet it cannot be bought alone.
These make sense when you already want the surrounding product, because the alias feature then costs nothing extra. If you only need a forwarding address, you pay for features you will not use, so compare the bundle price against a dedicated tool such as Addy.io, whose Lite plan lists one custom domain.
Ask what you would pay if you dropped the surrounding product
Check who in your household shares the plan
Compare the bundle price with a dedicated alias plan
What goes wrong most often when buying email alias services software
Buying a mailbox plan only for its alias feature, then finding the aliases vanish if you ever cancel the mailbox.
Giving a bank or tax account an address from a service that names no legal entity, country or contact on its site.
Ignoring bandwidth caps such as 10MB a month, so forwarded newsletters silently stop arriving after a few days.
Assuming every tool lets you reply from an alias, when 33Mail Lite and Firefox Relay's free plan hold that back for paid tiers.
07
Frequently asked questions
8 answers
What is the best email alias services in 2026?
Addy.io takes first place among the 11 we reviewed. Addy.io puts four things in one place: a free plan, cheap paid steps, AGPL-3.0 source and a documented self-hosting route.
The cost is clarity about the operator, because the pages read give no company name, address or country, only English governing law. Bandwidth is the other catch: the free plan stops at 10MB a month, and Lite at 100MB.
Which email alias services tools publish their pricing?
9 of the 11, with the pricing model each one publishes:
Addy.io: Published monthly or yearly plans from a zero-cost entry level up to Pro, plus Duo and Family bundles; the pricing page names no trial.
33Mail: Published monthly plans in four steps, starting with a zero-cost Lite plan; no trial is named.
Fastmail: Published euro plans per account or per user, billed monthly or yearly, with a 30-day trial on every plan.
SimpleLogin: Published yearly or monthly Premium plan per account with a zero-cost entry plan; a trial exists with no stated length.
Proton Pass: Free plan with a set alias allowance, published yearly paid plans for one person, a family or the full Proton bundle.
Tuta: Free mailbox plus paid tiers with add-on prices per user; base prices are not shown on the pricing page read.
DuckDuckGo Email Protection: Free forwarding service; the help page describes no paid tier for it, only a separate subscription add-on.
Firefox Relay: Free plan with a capped mask count; paid tiers sit on a waitlist with no prices shown.
Cloaked: Published subscription tiers for one person, a couple or a family, billed monthly or yearly; no trial is listed.
Everything else on the list is priced on request.
Is there a free email alias services tool?
Addy.io, SimpleLogin, Proton Pass, Tuta, DuckDuckGo Email Protection, Firefox Relay can be used for free, either as a free plan or a self-hosted edition.
Where are these email alias services vendors established?
Across 5 countries (Elsewhere 5, Europe 3, North America 2, Asia-Pacific 1):
Addy.io: Not stated by the vendor.
33Mail: Not stated by the vendor.
Fastmail: Australia.
SimpleLogin: Switzerland.
Proton Pass: Switzerland.
Tuta: Germany.
DuckDuckGo Email Protection: Not stated by the vendor.
Burner Mail: Not stated by the vendor.
Firefox Relay: Not stated by the vendor.
Cloaked: United States.
Apple Hide My Email: United States.
Which email alias services tools are open source?
SimpleLogin, Tuta.
Which email alias services tools can you host yourself?
Addy.io, SimpleLogin. The remaining 9 run only on the vendor's servers.
What should you use instead of Addy.io?
Look at 33Mail (made for Sign-up-heavy users who want unlimited aliases and a cheap path to replying) and Fastmail (made for People who want aliases next to the inbox they already host), which hold places two and three.
Who should not buy Addy.io?
Anyone who needs a named legal entity on the contract. The free plan carries 10MB of bandwidth a month, which a single newsletter can use up..
If a email alias services product of yours deserves a place among these 11, say what it is and who it serves. Inclusion rests with us alone. See software advice for the rules.
