CtxPack turns noisy web pages, HTML, or Markdown into compact context that AI agents can safely consume while tracking token savings.
Publisher’s description
What is CtxPack?
CtxPack is an open-source notes & to-do program for Windows from Akira Taniwaki. It is written in Go.
Installation and requirements
Official installers exist for 64-bit and ARM64 as Portable. It runs without installation (portable).
Popularity and file types
The source code on GitHub (atani/ctxpack) has 6 stars. Similar programs include Obsidian, Logseq and QOwnNotes.
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
In short: CtxPack is an open-source notes & to-do tool for 64-bit and ARM64 PCs.
Is CtxPack 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:
69F78A73D41BA111D06899DAD70A5F8D8112F87830E8D6146B6A890614F71740· 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 1 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 0.4.0Latest | June 16, 2026 | — | ARM64 ZIP64-bit ZIP |
Install from the command line
Silent install ›winget install --id atani.ctxpack -eRelated guide: How to use winget: install and update apps
Information
- Publisher
- Akira Taniwaki
- Category
- Notes & to-do
- Licence
- MIT
- Price
- Free
- Source code
- github.com/atani/ctxpack
- Written in
- Go
- Requires
- Windows 11 / 10
- Architecture
- 64-bit, ARM64
- Installer
- Portable
- Version
- 0.4.0
- Released
- June 16, 2026
- Added to the catalogue
- June 16, 2026
- Versions listed
- 1
- GitHub stars
- 6
- Website
- github.com
- winget ID
- atani.ctxpack
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is CtxPack free?
Yes. CtxPack is open-source software under the MIT licence.
Is CtxPack 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 CtxPack 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 CtxPack run on ARM (Windows on Arm)?
Yes, there is a native ARM64 installer.
Can I use CtxPack without administrator rights?
Yes, it is portable: unpack and run it.
What are alternatives to CtxPack?
Obsidian, Logseq, QOwnNotes, Evernote and Super Productivity. The alternatives page compares them.
