
Mailtrap
MailHog
mailslurp
Mailosaur
Mailpit
FakeSMTP
Mailinator
MailCatcher runs a super simple SMTP server which catches any message sent to it to display in a...

DeveloperToolStack
Free, no-signup developer tools for technical SEO: robots.txt, sitemap.xml and .htaccess generators, plus practical guides. Everything runs in your browser.

Which is more popular?
Based on our record, MailCatcher seems to be more popular. It has been mentioned 14 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | mailcatcher.me | fullstacktoolkit.com |
| Pricing | — | |
| Listed in |
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using MailCatcher and FullStackToolkit. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


I use it for testing and local development. We list it in our docs under 'other services'[0], where it is called out for local development. Because it has an API[1] you can use it for integration testing as well. Because it runs in... - Source: Hacker News / almost 2 years ago
It is unacceptable to bring a risk of accidentally sending dummy emails to real customers. To test email notifications, I recommend using Mailtrap. Mailtrap is a dummy SMTP server for testing emails sent from development and staging... - Source: dev.to / over 2 years ago
If you want to test SMTP mail delivery, there's MailCatcher: https://mailcatcher.me/. - Source: Hacker News / almost 3 years ago
Tracking FullStackToolkit since Sep 2026.
When comparing MailCatcher and FullStackToolkit, you can also consider the following products.

Email Delivery Platform that delivers just in time. Great for businesses and individuals.
Compare Mailtrap to MailCatcher or FullStackToolkit:

120 free browser-based developer utilities. No sign-up required.
Compare DeveloperToolStack to MailCatcher or FullStackToolkit:

MailHog is an email testing tool inspired by MailCatcher, but easier to install.
Compare MailHog to MailCatcher or FullStackToolkit:

Email and SMS testing and development platform for software engineers and QA testers
Compare mailslurp to MailCatcher or FullStackToolkit:

Email Testing for QA & Development Teams.
Compare Mailosaur to MailCatcher or FullStackToolkit:

An email and SMTP testing tool with API for developers.
Compare Mailpit to MailCatcher or FullStackToolkit: