My Thought Safe
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Download My Thought Safe 0.10.0

Free for any use. No account, no sign-up, no email. Each download is self-contained — there’s no .NET or anything else to install first.

Windows portable

Unzip and run from any folder or USB drive. Writes nothing to the registry or your user profile.

Windows 10 or 11, 64-bit
98.5 MB · MyThoughtSafe-0.10.0-win-x64-portable.zip
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SHA-256
16eedecce9d6b893a3685edebfafecd8c409063f3988074d14e82d0999c114f0

Linux AppImage

One self-contained file. Mark it executable and run it; nothing is installed and nothing is left behind.

x86-64 Linux with glibc (Ubuntu 22.04+, Fedora, Debian 12, Arch…)
91.1 MB · MyThoughtSafe-0.10.0-x86_64.AppImage
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SHA-256
bbc81b4784657bde186d0023c8683b34b10c0ed7f412da80522b54d02249270d

Windows may warn you on first run. This release is not yet code-signed, so SmartScreen may show “Windows protected your PC”. Check the SHA-256 below first, then choose More info → Run anyway. Some antivirus products are also wary of the large, unsigned AI engine libraries the app bundles.

Released September 13, 2026. There is no automatic updater — by design, the app never checks for anything. A new version is one you choose to download. By downloading you agree to the license; please link people to this page rather than sharing copies, so the checksums below stay meaningful.

Before you install

What you’ll need

The app is the easy part. The AI model is a separate file you download once and keep wherever you like.

System

WindowsWindows 10 or 11, 64-bit (x64)
Linuxx86-64, glibc 2.34 or newer (Ubuntu 22.04+, Debian 12+, Fedora 35+, RHEL 9+, Arch), X11 or Wayland with XWayland
MemoryAt least 8 GB of RAM for a small (3–4B) model; 16 GB is comfortable for a 7–9B model. The app itself uses about 150 MB, but the model is held in system memory too, even when most of it runs on the graphics card: in testing, a 9B Q4_K_M model (a 5.6 GB file) used about 4.5 GB of RAM with 27 of its 32 layers on the GPU. The app shows you the fit before it loads.
DiskAbout 270 MB for the app, plus your model file (typically 2–5 GB)
NetworkNone. The app runs fully offline.

Graphics acceleration optional

NVIDIASupported via Vulkan Tested
AMDSupported via Vulkan Not yet tested
Intel Arc / iGPUSupported via Vulkan Not yet tested
No GPURuns on the CPU — slower, fully functional

AMD and Intel GPUs use exactly the same bundled Vulkan engine as NVIDIA, with nothing vendor-specific in between, but they haven’t been verified on real hardware yet. All you need is a current graphics driver. If a card isn’t picked up, the model runs on the processor instead.

An AI model (GGUF)

My Thought Safe doesn’t bundle a model. You supply a chat model in GGUF format — the same files LM Studio and llama.cpp use — and point the app at the folder. An instruction-tuned model of 7–9B parameters in a Q4_K_M quantization is a good starting point.

Optionally add a small GGUF embedding model for better memory search. Choosing a model →

Hardware security keys optional

Any FIDO2 key that supports the hmac-secret extension — YubiKey 5 series, SoloKeys, Nitrokey 3 and most modern keys — can unlock a vault alone or together with a passphrase.

Linux: install libfido2 (sudo apt install libfido2-1) and the udev rule described in the install guide. Windows needs nothing extra.

Checksums

Verify your download

Compare the SHA-256 of the file you downloaded against the value published here. A match means the file arrived intact and is the one the author published.

Windows (PowerShell)

Get-FileHash .\MyThoughtSafe-0.10.0-setup.exe -Algorithm SHA256

Or in Command Prompt: certutil -hashfile MyThoughtSafe-0.10.0-setup.exe SHA256

Linux

sha256sum -c SHA256SUMS-0.10.0.txt --ignore-missing

Or check one file: sha256sum MyThoughtSafe-0.10.0-x86_64.AppImage

SHA256SUMS-0.10.0.txt Download 
ef1adf5ea028f424fdbba5a517b3a9fad097eaa8622ecd39e22ec29099951c7b  MyThoughtSafe-0.10.0-setup.exe
16eedecce9d6b893a3685edebfafecd8c409063f3988074d14e82d0999c114f0  MyThoughtSafe-0.10.0-win-x64-portable.zip
bbc81b4784657bde186d0023c8683b34b10c0ed7f412da80522b54d02249270d  MyThoughtSafe-0.10.0-x86_64.AppImage

A matching hash proves where the file came from, not what’s inside it — no hash can. That’s why the license explicitly permits you to take the app apart, and why the security page lists checks you can run on the app itself.

Next

Installed? Here’s where to go

Installing, step by stepInstaller, portable and AppImage, including SmartScreen and Linux libraries. Creating your first vaultPassphrases, hardware keys, and why there is no recovery. Choosing a modelWhich GGUF to download, and how the GPU and CPU split works. The five-minute quick startFrom download to your first entry.