Growth · alternatives · 2026

24 alternatives to Free Spam Detector

Multi-language Email spam check tool

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1
You've Got Spam▲305
A new tool that lets you spam back the spammer
2020 · youvegotspam.mschfmag.com · its alternatives →
2
Spam Check▲93
A free JSON API to check your email messages' spam scores
2015 · spamcheck.postmarkapp.com · its alternatives →
3
Spam Checker by Mailmeteor▲88
Detect and remove spam words in your emails
2022 · mailmeteor.com · its alternatives →
4
Warmup Inbox▲204
Free email spam checker & inbox placement tester
2023 · warmupinbox.com · its alternatives →
5
Email Spam Checker by Autoklose▲105
Send spam-free, high-converting emails
2020 · app.autoklose.com · its alternatives →
6
Unspam AI▲385
See how your subscribers read your emails with our AI inbox
2024 · unspam.email · its alternatives →
7
Unspam.email▲299
Email spam checker and newsletter heatmap prediction.
2020 · unspam.email · its alternatives →
8
analyze.email▲136
Test the spam-y-ness of your emails
2017 · analyze.email · its alternatives →
9
Mail Tester▲309
Test the spamminess of your email
2016 · mail-tester.com · its alternatives →
10
Grade My Email▲145
Helps you get out of the spam folder.
2020 · grademyemail.co · its alternatives →
11
mailX by mailwarm▲596
Email deliverability toolkit for humans and AI agents
May 2026 · themailx.com · its alternatives →
12
A free tool to easily check your SpamAssasin Score▲12
Instantly check an email
2015 · spamcheck.postmarkapp.com · its alternatives →
13
Email Copy Checker▲5
Check your emails for spam trigger words before hitting send
2017 · emailcopychecker.com · its alternatives →
14
Vetter▲134
Test if your emails will be spammed, using real accounts.
2020 · vetter.monsoonyeti.com · its alternatives →
15
Retainly Email Content Spam Checker▲5
Improve your email open rates by 30% or more - for free :-)
2017 · retainly.co · its alternatives →
16SS
Simple Spam Scoring▲10
2011 · spamscore.me · its alternatives →
17
Postmark Spam Check▲3
A free tool to easily check your SpamAssasin Score
2015 · spamcheck.postmarkapp.com · its alternatives →
18
SellScale Email Grader▲117
Get instant feedback on your sales emails
2024 · sellscale.com · its alternatives →
19
Spam Mail Tester▲6
Free report for improving deliverability of your email
2015 · mail-tester.com · its alternatives →
20
Email Spam Words API▲82
Free API to list all email spam words in different languages
2021 · its alternatives →
21
EmailTest.com▲149
World's easiest spam testing and email rendering service
2017 · its alternatives →
22
SpamSieve▲71
Add powerful spam filtering to your Mac’s e-mail client
2018 · c-command.com · its alternatives →
23
Email Bounce Checker from BlockSurvey▲98
Privacy-focused email bounce checker. No ads, no trackers.
2022 · blocksurvey.io · its alternatives →
24
Spam-Detecting AI by OpenAI▲73
Spam detection in the physical world
2017 · 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 →