Download K-9 Mail for PC (Windows 11/10/8 & Mac)

Join us on an exciting journey as we help you download and install K-9 Mail on your computer, whether it’s a Windows or Mac system. You’re just a few clicks away from getting K-9 Mail up and running, ready to explore a world full of awesome features.

Don’t wait! Come along on this adventure with us to download and tap into the fantastic potential of this incredible app on your computer!

K-9 Mail app for PC

K-9 Mail stands out as a versatile and open-source email client, catering to users across various email providers. Its commitment to user privacy, coupled with a wide range of features, makes it a reliable choice for those seeking a customizable and secure email experience.

k-9 mail for pc

App Name K-9 Mail
Developer Mozilla Thunderbird
Release Date
File Size 8 MB
Version Compatibility Android 5.0 and up
Category Communication

K-9 Mail Features

Supports Multiple Accounts

Users can seamlessly switch between accounts, streamlining their email communication.

Unified Inbox

The Unified Inbox feature brings all your emails together in one place, simplifying the email management process. No more switching between inboxes; everything is conveniently accessible in a unified view.


The app refrains from any form of tracking and solely connects to the user’s email provider, ensuring a secure and confidential email experience.

Automatic Background Synchronization or Push Notifications

Users can stay updated with their emails through automatic background synchronization or push notifications.

Local and Server-Side Search

Efficiently locate emails with local and server-side search capabilities. K-9 Mail’s search functionality enables users to find specific emails quickly, enhancing overall productivity.

OpenPGP Email Encryption (PGP/MIME)

For users prioritizing email security, K-9 Mail supports OpenPGP email encryption (PGP/MIME). To encrypt or decrypt emails using OpenPGP, users can install the “OpenKeychain: Easy PGP” app, ensuring the confidentiality of their communication.

How to Download K-9 Mail for your PC (Windows 11/10/8/7 & Mac)

Download K-9 Mail for your Windows or Mac and start a fun and easy adventure. Here’s the scoop: First, get an Android emulator to turn your computer into a hotspot for Android apps. Then, get ready for not one, but two super easy ways to download K-9 Mail. Get excited! Ready to kick things off? Let’s do it!

Method #1: Download K-9 Mail PC using Bluestacks

Step 1: Start by visiting Here, you can find and download their special software. The Bluestacks app is like a magical doorway that brings Android apps to your computer. And yes, this includes K-9 Mail!

Step 2: After you’ve downloaded Bluestacks, install it by following the instructions, just like building something step by step.

Step 3: Once Bluestacks is up and running, open it. This step makes your computer ready to run the K-9 Mail app.

Step 4: Inside Bluestacks, you’ll see the Google Play Store. It’s like a digital shop filled with apps. Click on it and log in with your Gmail account.

Step 5: Inside the Play Store, search for “K-9 Mail” using the search bar. When you find the right app, click on it.

Step 6: Ready to bring K-9 Mail into your computer? Hit the “Install” button.

Step 7: Once the installation is complete, you’ll find the K-9 Mail icon on the Bluestacks main screen. Give it a click, and there you go – you’re all set to enjoy K-9 Mail on your computer. It’s like having a mini Android device right there!

Method #2: Download K-9 Mail on PC using MEmu Play

Step 1: Go to, the MEmu Play website. Download the MEmu Play app, which helps you enjoy Android apps on your PC.

Step 2: Follow the instructions to install MEmu Play. Think of it like setting up a new program on your computer.

Step 3: Open MEmu Play on your PC. Let it finish loading so your K-9 Mail experience is super smooth.

Step 4: Inside MEmu Play, find the Google Play Store by clicking its icon. Sign in with your Gmail account.

Step 5: Look for “K-9 Mail” using the Play Store’s search bar. Once you find the official app, click on it.

Step 6: Hit “Install” to bring the K-9 Mail to your PC. The Play Store takes care of all the downloading and installing.

Step 7: Once it’s done, you’ll spot the K-9 Mail icon right on the MEmu Play home screen. Give it a click, and there you have it – K-9 Mail on your PC, ready to enjoy!

Similar Apps

Blue Mail

Blue Mail features an easy interface and allows different email accounts. It puts a focus on customization and a unified inbox.

Aqua Mail

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ProtonMail is renowned for its emphasis on end-to-end encryption and security. Ideal for users prioritizing privacy, it ensures that emails remain confidential and protected from external threats.

Nine – Email & Calendar

Nine provides a seamless experience for users managing both email communication and scheduling in a single application.


FairEmail focuses on simplicity and efficiency. It also features a clean and easy interface and robust features.


How do I add multiple accounts in K-9 Mail?

To add multiple accounts, navigate to Settings > Accounts > Add Account, and follow the prompts to configure additional email accounts.

Can I edit the look of Unified Inbox?

Yes, users can customize the appearance of the Unified Inbox by adjusting settings in the app’s display options.

Is K-9 Mail available for iOS devices?

Currently, K-9 Mail is exclusively available for Android devices.

How do I control push notifications for my emails?

Push notifications can be enabled in Settings > Fetching Mail > Push. Ensure that your email provider supports push notifications for this feature to work.

What is OpenPGP email encryption, and how do I set it up?

OpenPGP email encryption adds a layer of security to your emails. Install the “OpenKeychain: Easy PGP” app and follow the setup instructions within K-9 Mail to use this feature.

Can I use K-9 Mail without an internet connection?

While an internet connection is necessary for syncing and sending emails, K-9 Mail allows users to access locally stored emails without an active connection.

How can I help with K-9 Mail development?

Interested individuals can contribute to K-9 Mail’s development by joining the community on their GitHub page. Opportunities for developers, designers, documenters, translators, and bug triagers are available.

Are there any known privacy concerns with K-9 Mail?

No, K-9 Mail is privacy-friendly, with no tracking whatsoever. It only connects to the user’s email provider, ensuring a secure and private email experience.


K-9 Mail emerges as a reliable open-source email client that prioritizes user privacy and offers a feature-rich experience. With support for multiple accounts, a Unified Inbox, and robust security measures like OpenPGP email encryption, it caters to users seeking a versatile and secure email solution. For those looking beyond K-9 Mail, alternatives like Blue Mail, Aqua Mail, ProtonMail, Nine, and FairEmail provide diverse options tailored to different preferences. As the K-9 Mail community actively welcomes contributions, users can participate in the app’s development, ensuring its continual improvement and adaptation to evolving user needs.

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