Mailpit is a small, fast, low memory, zero-dependency, multi-platform email testing tool & API for
developers.
It acts as an SMTP server, provides a modern web interface to view & test captured emails, and
includes an API for automated integration testing.
Mailpit was originally inspired by MailHog which is no longer maintained and hasn't seen active
development or security updates for a few years now.
Publisher’s description
What is Mailpit?
Mailpit by Ralph Slooten is open-source Windows software in the languages & sdks category. It is written in Go.
Installation and requirements
The publisher provides Portable installers for 64-bit and ARM64 Windows. It runs without installation (portable).
Updates and version history
The current version is 1.32.0, released on October 22, 2026. The version history goes back to March 29, 2026: 10 releases, all linked to the official files. The last update is less than a month old.
Popularity and file types
The source code on GitHub (axllent/mailpit) has 10,717 stars. Similar programs include Go Programming Language, LLVM and Deno.
Project description on GitHub: “An email and SMTP testing tool with API for developers”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Native ARM64 build for Windows on Arm
- Portable: runs without installation
- Updated in the last two months
- Large user base
In short: Mailpit is an open-source languages & sdk tool for 64-bit and ARM64 PCs.
Is Mailpit safe to download?
- The file is served by github.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
16915767A6C95DCA569336E8F561F91CF355E9A33C57B91DEEDCC10A4BBA7FD4· Open the VirusTotal report for this hash - The link has not been checked yet
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 10 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 1.32.0Latest | October 22, 2026 | — | 64-bit ZIPARM64 ZIP |
| 1.31.6 | October 15, 2026 | — | 64-bit ZIPARM64 ZIP |
| 1.31.5 | October 11, 2026 | — | ARM64 ZIP64-bit ZIP |
| 1.31.4 | October 3, 2026 | — | 64-bit ZIPARM64 ZIP |
| 1.31.3 | September 27, 2026 | — | 64-bit ZIPARM64 ZIP |
| 1.31.2 | September 19, 2026 | — | ARM64 ZIP64-bit ZIP |
| 1.31.1 | September 5, 2026 | — | ARM64 ZIP64-bit ZIP |
| 1.31.0 | August 22, 2026 | — | 64-bit ZIPARM64 ZIP |
Install from the command line
Silent install ›winget install --id axllent.mailpit -eRelated guide: How to use winget: install and update apps
Information
- Publisher
- Ralph Slooten
- Category
- Languages & SDKs
- Licence
- MIT
- Price
- Free
- Source code
- github.com/axllent/mailpit
- Written in
- Go
- Requires
- Windows 11 / 10
- Architecture
- 64-bit, ARM64
- Installer
- Portable
- Version
- 1.32.0
- Released
- October 22, 2026
- Added to the catalogue
- March 30, 2026
- Versions listed
- 10
- GitHub stars
- 10,717
- GitHub forks
- 365
- Website
- github.com
- winget ID
- axllent.mailpit
Ratings and reviews
No reviews yet. Be the first to rate it.
Alternatives to Mailpit
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Frequently asked questions
Is Mailpit free?
Yes. Mailpit is open-source software under the MIT licence.
Is Mailpit safe to download?
The download comes from github.com, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install Mailpit with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Does Mailpit run on ARM (Windows on Arm)?
Yes, there is a native ARM64 installer.
Where can I download an older version of Mailpit?
The versions page lists all 10 versions with links to their official installer files, back to March 29, 2026.
Can I use Mailpit without administrator rights?
Yes, it is portable: unpack and run it.
What are alternatives to Mailpit?
Go Programming Language, LLVM, Deno, CMake and Yarn. The alternatives page compares them.
