Download ChatKeeper

Latest release: 2026.03.001

March 1, 2026

By downloading ChatKeeper, you are agreeing to its Terms of Service and EULA. It’s a quick read and (I believe) a reasonable policy, but it’s important that we start on the same page.

You can try ChatKeeper for free without providing your name, email, credit card, or anything else. If you don’t have a license, there will be some limitations as described here.

Already have ChatKeeper and just want your "Forever License"?

I’m pleased to announce the first official desktop GUI release of ChatKeeper.

This release marks a major milestone. ChatKeeper’s new GUI is installed alongside the same Command Line Interface (CLI) that you’re familiar with. The GUI can can do everything the CLI can do, and the CLI remains included and fully supported.

To launch the GUI, just click on the desktop or menu shortcut, or invoke chatkeeper with no arguments.

Version Numbering Update: This is also the first production release with a new version numbering scheme.

Version numbers now begin with the year and month in which the release was created. The third number resets each month and increments for every build (including internal test builds).

Adventure Builds use this same numbering format, with an -adventure suffix.

Fixed and Added in This Release:

• Full Desktop GUI using the same proven sync engine as the CLI
• Platform-specific desktop installers for Windows, macOS, and Linux
• Drag-and-drop support for ChatGPT export ZIP files
• Guided syncing workflow with clear, step-by-step options
• Support for ChatGPT’s new February 2026 export format
  • Handles new conversations-000.json, conversations-001.json, etc.
  • Original conversations.json still supported.
• Automatic PATH integration so chatkeeper works from any terminal
• Proper handling for “Your Year with ChatGPT” conversations.
• Fix for multimodal text parsing issue where non-string parts could cause conversion errors

Known Issues

None currently known.

That said, new software often finds ways to surprise us. If you encounter anything unexpected, please let me know. I read every message.

Upgrading

From an earlier Adventure Build

Just download via the above links and install. No need to uninstall anything first.

From version 1.3.0 or earlier

Mac (Homebrew) users: Run

brew remove martian-software-inc/chatkeeper/chatkeeper

to avoid conflicts with the new installer. Then simply install the new version.

Everyone else: Simple delete the old chatkeeper executable before installing the new version.

Pricing Update

Thank you to everyone who supported development early.

As noted in the Adventure Builds announcement, ChatKeeper’s price is now $29.99.

Existing license holders continue to receive both the CLI and GUI versions at no additional cost.

ChatKeeper remains a one-time purchase. No subscriptions. No telemetry.

After downloading…

• If you like what you see, consider purchasing a license if you haven’t already!
• See the ChatKeeper Command Line Interface (CLI) Quick Start Guide to start converting your conversations right away.
  • Don’t miss the Command Line Helper which can provide extra help!
• Check back for product updates (you can also get specific upgrade recommendations from the GUI’s “Help & More” page)
• Review ChatKeeper’s privacy policy if you have any questions or concerns about that sort of thing.
• Send me an email to let me know how you are using ChatKeeper, what you like or don’t like about it, what features you’d like to see, or any other feedback. I’d love to hear from you.
• Sign up for updates and articles from Martian Software. You can unsubscribe at any time.

All ChatKeeper Releases