Marklet is an open source #altai client primarily intended for use with local models (i.e. in conjunction with Ollama or a similar runner). Its primary purpose is to do this simply and to do it well.
Marklet is a native desktop application which provides a near out-of-box experience, comprising everything except the models and runner. It is clean, principled and designed for those who do not want bloat or web-UIs.
It prioritises the individual, and is personal in the way a PC was once personal.
Above, Marklet preview version.
UNDER ACTIVE DEVELOPMENT 2026
This is a preview release encompassing the primary aspects of the user interface and database. It does not currently contain the code needed to connect it to a model. There is no actual "AI" in current releases. It is coming. Click Watch for updates.
That being said, you should find the user interface very polished. You can download and run it, and it will generate stub response messages intended to exercise the user interface.
It initially supports:
- Linux
- Windows
Runable Linux AppImage and simple Windows zip are provided only for this release. It should build and run on macOS, but the means to test this is currently unavailable to the authors (feedback on this appreciated).
Marklet is not designed to automate human lives.
- Marklet is designed to run models locally rather than for use with remote cloud services
- It does not actively encourage models or users into sycophancy
- It's intended to be simpler to use than other AI clients with non-technical AI users in mind
- Not designed to scale beyond a single user
- Privacy focused with zero telemetry. Any connectivity to the outside world, i.e. to pull web-page information, explicitly opt-in rather than opt-out
- It is a sovereign human written code base with minimal dependencies on third-party libraries
- Native, compact, self-contained rather than an Electron or web-app
- Users are ultimately free to use the software as they wish
An approximate roadmap is as follows:
- Continued development of the user interface and data backend
- Completion of "note taking" interface
- Completion of "project" interface
- Implement connection to model runners and context generation
- Syntax high-lighting for fenced code
- LaTeX math symbols in markdown
- Support for attachments, images
- Text to speech, yet undecided features
- A plugin architecture
Marklet is not intended to support image or video generation capabilities. Any text-to-speech capability will be for accessibility only and not to mimic real human voices.
There are likely to be several interim releases before an initial version 1.0. Work continues.
Follow author: Substack, LinkedIn, X @KuiperZone
Visit the official website for more information which will be populated as the project develops:
https://kuiper.zone/marklet-ai
If you like this project, please like and share. If you don't like it, just keep that to yourself.
COPYRIGHT : Andrew Thomas © 2025-2026 All rights reserved
Marklet is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, version 3 of the License only.
Marklet is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.
In order to prevent "passing off", "Marklet" in connection with AI software is a trademark of Andrew Thomas (kuiperzone). Marklet is, however, a non-commercial project. Use of the name "Marklet" for derivative works or forks requires explicit written permission. The same applies to the "Marklet Owl" image and other original graphical works. While no great artistic skill is claimed, the image is nevertheless an original copyrighted work of the author and is specifically excluded from the AGPL.