Comparison

Litmus vs Mailpit

No leader: the top candidate Litmus has only 0.12 confidence (low), below the 0.35 needed to declare a winner. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

Litmus full profile →Mailpit full profile →

Machine formatsJSON Markdown GraphQLor send Accept: application/json

Litmus40

Mailpit40

Attribute comparison across 2 tools
Attribute	Litmus	Mailpit
Vioscale score	40 / 100low · 12%	40 / 100low · 23%
Integrations
Countintegrations.count	12	1
Security
Gdprsecurity.gdpr	✓	-
Soc2security.soc2	✓	-
Vulnerabilitiessecurity.vulnerabilities	-	Count: 13 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Faxllent%2Fmailpit&per_page=100 · Last 12m: 13 · Max severity: HIGH
Adoption
Dependent reposadoption.dependent_repos	-	0
Github starsadoption.github_stars	-	10,208
Activity
Commits last 30dactivity.commits_last_30d	-	36
Release
Cadence daysrelease.cadence_days	-	11
Historyrelease.history	-	20 items
License
Spdxlicense.spdx	-	MIT
Language
Primarylanguage.primary	-	Go
Market
Availabilitymarket.availability	Available worldwide · Popular in US, GB	-

Score

Vioscale score

Litmus40 / 100low · 12%

Mailpit40 / 100low · 23%

Integrations

Count

Litmus12

Mailpit1

Security

Gdpr

Litmus✓

Mailpit–

Soc2

Litmus✓

Mailpit–

Vulnerabilities

Litmus–

MailpitCount: 13 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Faxllent%2Fmailpit&per_page=100 · Last 12m: 13 · Max severity: HIGH

Adoption

Dependent repos

Litmus–

Mailpit0

Github stars

Litmus–

Mailpit10,208

Activity

Commits last 30d

Litmus–

Mailpit36

Release

Cadence days

Litmus–

Mailpit11

History

Litmus–

Mailpit20 items

License

Spdx

Litmus–

MailpitMIT

Language

Primary

Litmus–

MailpitGo

Market

Availability

LitmusAvailable worldwide · Popular in US, GB

Mailpit–

Capabilities

Feature-by-feature on the axes that matter for email testing dev. “-” means undocumented, not absent.

Capability comparison for Email Testing Dev
Capability	Litmus	Mailpit
Capabilities
API assertions	-	-
Rendering preview	-	-
Spam score check	-	-
Blocklist deliverability check	-	-
SMS testing	-	-
Production sending addon	-	-
Ci cd integration	-	-
Multi user inboxes	-	-
Open source	-	-

Capabilities

API assertions

Litmus-

Mailpit-

Rendering preview

Litmus-

Mailpit-

Spam score check

Litmus-

Mailpit-

Blocklist deliverability check

Litmus-

Mailpit-

SMS testing

Litmus-

Mailpit-

Production sending addon

Litmus-

Mailpit-

Ci cd integration

Litmus-

Mailpit-

Multi user inboxes

Litmus-

Mailpit-

Open source

Litmus-

Mailpit-

What each one is

The product in its own terms, so the numbers below have context.

Litmus

Not documented yet.

Mailpit

A minimal email testing tool that intercepts SMTP traffic and provides a web UI plus REST API for validating and testing email functionality during development.

Independently observed

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platform and deployment support comparison
Supports	Litmus	Mailpit
WebPlatforms	✓	✓
Cloud / SaaSDeployment	✓	✗
Self-hostedDeployment	✗	✓

Platforms

Web

Litmus✓

Mailpit✓

Deployment

Cloud / SaaS

Litmus✓

Mailpit✗

Self-hosted

Litmus✗

Mailpit✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

Litmus

12 total

Salesforce Marketing Cloud
Adobe Marketo
Oracle Responsys
Oracle Eloqua
HubSpot
Acoustic Campaign
Mailchimp
Campaign Monitor
Trello
Slack
Dropbox
Dreamweaver

Independently observed

Mailpit

1 total

SpamAssassin

Independently observed

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.