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Open source applications

WhyNotWin11 Portable 2.7.0.0 (Windows 11 upgrade readiness utility) Released

John T. Haller's picture
Submitted by John T. Haller on January 20, 2026 - 3:03pm

Eraser logoA new version of WhyNotWin11 Portable has been released. WhyNotWin11 is a Windows 11 upgrade readiness utility that shows you which components of your PC are ready or not ready for Windows 11. It's packaged in PortableApps.com Format so it can easily integrate with the PortableApps.com Platform. And it's open source and completely free.

Update automatically or install from the portable app store in the PortableApps.com Platform.

Zettlr Portable 4.1.0 (modern markdown editor) Released

John T. Haller's picture
Submitted by John T. Haller on January 20, 2026 - 2:29pm

A new version of Zettlr Portable has been released. Zettlr is a modern markdown editor with a rich feature set. It's packaged in PortableApps.com Format for easy use from any portable device and integration with the PortableApps.com Platform. And it's open source and completely free.

Update automatically or install from the portable app store in the PortableApps.com Platform.

OpenJDK JRE 25.0.1-8 (portable Java runtime environment) Released

John T. Haller's picture
Submitted by John T. Haller on January 20, 2026 - 2:27pm

A new version of OpenJDK JRE Portable has been released by PortableApps.com. OpenJDK JRE Portable allows you to carry a full-featured Java® runtime environment (JRE) on your PortableApps.com-enabled device all without any Java runtime on the local PC. It's packaged in PortableApps.com Format for easy use from any portable device and integration with the PortableApps.com Platform. It's open source for personal and business use.

Update automatically or install from the portable app store in the PortableApps.com Platform.

Oracle and Java are registered trademarks of Oracle and/or its affiliates. Other names may be trademarks of their respective owners.

OpenJDK JRE Legacy 17.0.17-10 (portable Java runtime environment) Released

John T. Haller's picture
Submitted by John T. Haller on January 20, 2026 - 1:54pm

A new version of OpenJDK JRE Legacy 17 Portable has been released by PortableApps.com. OpenJDK JRE Portable allows you to carry a full-featured Java® runtime environment (JRE) on your PortableApps.com-enabled device all without any Java runtime on the local PC. It's packaged in PortableApps.com Format for easy use from any portable device and integration with the PortableApps.com Platform. It's open source for personal and business use.

Update automatically or install from the portable app store in the PortableApps.com Platform.

Oracle and Java are registered trademarks of Oracle and/or its affiliates. Other names may be trademarks of their respective owners.

QOwnNotes Portable 26.1.9 (markdown note taker) Released

John T. Haller's picture
Submitted by John T. Haller on January 19, 2026 - 3:11pm

A new version of QOwnNotes Portable has been released. It's a handy markdown note taking app packaged as a portable app so you can take notes on the go. It's packaged in PortableApps.com Format so it can easily integrate with the PortableApps.com Platform. And it's open source and completely free.

Update automatically or install from the portable app store in the PortableApps.com Platform.

New: Aegisub Portable 3.4.2 (subtitle creator and modifier) Released

Submitted by mwayne on January 19, 2026 - 1:37pm

logoAegisub Portable has been released. Aegisub is a free, cross-platform open source tool for creating and modifying subtitles. It's packaged in PortableApps.com Format so it can easily integrate with the PortableApps.com Platform. And it's open source and completely free.

Update automatically or install from the portable app store in the PortableApps.com Platform.

Mozilla Firefox, Portable Edition Stable 147.0.1 (web browser) Released

John T. Haller's picture
Submitted by John T. Haller on January 18, 2026 - 5:21pm

A new version of Mozilla Firefox®, Portable Edition has been released. It's the Mozilla Firefox browser bundled with a PortableApps.com launcher as a portable app, so you can take your browser, bookmarks, settings and extensions on the go. And it's open source and completely free. Firefox Portable is a dual-architecture 64-bit and 32-bit (optional) app, ensuring Firefox runs as fast as possible on every PC.

Mozilla®, Firefox® and the Firefox logo are registered trademarks of the Mozilla Foundation and used under license.

Update automatically or install from the portable app store in the PortableApps.com Platform.

Thunderbird, Portable Edition 148.0 Beta 1 (email client) Released

John T. Haller's picture
Submitted by John T. Haller on January 17, 2026 - 3:56pm

A new version of Thunderbird®, Portable Edition Beta has been released. It's the popular Thunderbird email client bundled with a PortableApps.com launcher as a portable app. This package allows you to test the upcoming version without impacting your standard portable or local install of Thunderbird. Note that the current beta is English only. It's packaged in PortableApps.com Format so it can easily integrate with the PortableApps.com Platform. And it's open source and completely free.

Mozilla®, Thunderbird® and the Thunderbird logo are registered trademarks of the Mozilla Foundation and are used under license.

Update automatically or install from the portable app store (advanced apps enabled) in the PortableApps.com Platform.

Thunderbird ESR, Portable Edition 140.7.0 (email client) Released

John T. Haller's picture
Submitted by John T. Haller on January 17, 2026 - 3:53pm

A new version of Thunderbird® ESR, Portable Edition has been released. It's the Extended Support Release of the popular Thunderbird email client bundled with a PortableApps.com launcher as a portable app. It's packaged in PortableApps.com Format so it can easily integrate with the PortableApps.com Platform. And it's open source and completely free.

Mozilla®, Thunderbird® and the Thunderbird logo are registered trademarks of the Mozilla Foundation and are used under license.

Update automatically or install from the portable app store (advanced apps enabled) in the PortableApps.com Platform.

Thunderbird, Portable Edition 147.0 (email client) Released

John T. Haller's picture
Submitted by John T. Haller on January 17, 2026 - 3:51pm

A new version of Thunderbird, Portable Edition has been released. It's the popular Thunderbird email client bundled with a PortableApps.com launcher as a portable app. It's packaged in PortableApps.com Format so it can easily integrate with the PortableApps.com Platform. And it's open source and completely free.

Mozilla®, Thunderbird® and the Thunderbird logo are registered trademarks of the Mozilla Foundation and are used under license.

Update automatically or install from the portable app store in the PortableApps.com Platform.

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