Dev tools · alternatives · 2026

24 alternatives to mosparo

The modern spam protection

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. mosparo launched in 2023; newer entries below may have overtaken it.

1
mosparo▲60
the modern spam protection
2023 · mosparo.io · its alternatives →
2
hi.new▲571
Prevent spam, stay reachable
2024 · hi.new · its alternatives →
3
Mox - Modern full-featured low-maintenance self-hosted mail server▲471
modern full-featured open source secure mail server for low-maintenance self-hosted email - mjl-/mox
2023 · github.com · its alternatives →
4
You've Got Spam▲305
A new tool that lets you spam back the spammer
2020 · youvegotspam.mschfmag.com · its alternatives →
5
Google Invisible reCAPTCHA▲428
Protects your website from spam and abuse
2017 · cloud.google.com · its alternatives →
6
I made an open-source anonymous email forwarding service▲393
Create unlimited email aliases for free. Protect your real email from spam by using a different address for each service. Privacy friendly, anonymous replies.
2019 · anonaddy.com · its alternatives →
7
Form Defender▲8
Defend your forms from spam
Dec 2025 · formdefender.me · its alternatives →
8
FormSanitizer▲160
Stop spammy form submissions with custom filters.
2025 · formsanitizer.com · its alternatives →
9
Password-protected forms by JotForm▲116
Say goodbye to unwanted form submissions
2019 · jotform.com · its alternatives →
10
Bouncer Shield▲85
Real-time form protection against bad emails
2024 · usebouncer.com · its alternatives →
11
Spam Checker by Mailmeteor▲88
Detect and remove spam words in your emails
2022 · mailmeteor.com · its alternatives →
12
AnonAddy▲132
Open-source anonymous email forwarding. Stop spam.
2019 · addy.io · its alternatives →
13
MetaShield▲102
A chrome extension to keep your ETH & NFTs safe from scams
2021 · chromewebstore.google.com · its alternatives →
14
OOPSpam Anti-Spam API 2.0▲58
A powerful spam filter for any content exchange.
2019 · oopspam.com · its alternatives →
15
Antideo▲110
API for IP and Email Intelligence & Phone Number Validation
2019 · antideo.com · its alternatives →
16
Gapflow.io▲141
Spam filter, autoreply & forwarding for Webflow native Forms
2025 · gapflow.io · its alternatives →
17
ZENCAPTCHA▲115
Privacy-first bot & spam defense, GDPR compliant CAPTCHA
2023 · zencaptcha.com · its alternatives →
18
Guard.dm▲98
Make the spammers pay, literally
2023 · its alternatives →
19
SpamHound SMS Spam Filter▲5
SpamHound guards your inbox against spam, scam, and fraud
2017 · spamhoundapp.com · its alternatives →
20
SpamSieve▲71
Add powerful spam filtering to your Mac’s e-mail client
2018 · c-command.com · its alternatives →
21
Spamty▲2
Protecting your email address from crawlers and spam bots.
2020 · spamty.eu · its alternatives →
22
Anti-Spam Protection WordPress Plugin▲5
Enhanced Anti-Spam Protection WordPress Plugin
2024 · gorewada.gumroad.com · its alternatives →
23
Nada▲6
Protect your real email address and stop spam.
2016 · inboxes.com · its alternatives →
24
SimpleLogin – protect online privacy using email alias▲9
With email aliases , you can be anonymous online and protect your inbox against spams and phishing.
2020 · simplelogin.io · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →