All content on this page is translated from the Simplified Chinese version. Please refer to the Simplified Chinese version as the primary reference. This project does not yet offer an official translation in this language; multilingual versions are planned for the future — stay tuned.

Fetching the latest release…

Update Channels

Channel	Content	Download Line	Notes
Release	Official release versions	GitHub / EZ-Mirror mirror	Default channel; the mirror site syncs these versions
Pre Release	Pre-release versions	GitHub only	Not yet synced by the mirror site; can only be downloaded from GitHub

The "Version" dropdown at the top of the page lists all historical versions under the current channel, with the latest selected by default; you can also freely pick an earlier version number to download. The GitHub and EZ-Mirror links for the corresponding version are generated automatically; if a certain version does not offer an installer version, the page automatically hides the installer button and keeps only the portable package.

Version Types and Sizes

The program offers two single-file publishing modes; the "Portable Lite" and "Portable Full" entries in the download list correspond to them respectively:

Publishing Mode	Requires the .NET 8 Desktop Runtime	Size Reference	Suitable Scenario
Framework-dependent	Yes	About 10~20 MB	The machine already has the .NET 8 Desktop Runtime installed
Self-contained	No	About 90~110 MB	A brand-new system; you don't want to install any runtime

Both modes are a single file LetsMeowToolbox.exe accompanied by a plugins/ directory — extract and use. The file sizes shown on the page are subject to the actual artifacts of the GitHub Release.

Installation and First Run

1. Download and Extract

   Download the zip of the corresponding version from the list above; after extracting you get LetsMeowToolbox.exe and the plugins directory.
2. Install the Runtime If Needed

   If you choose the "Portable Lite", please install the .NET 8 Desktop Runtime (.NET Desktop Runtime 8.x) first; the "Portable Full" ships with the runtime and can skip this step.
3. Double-Click to Run

   Run LetsMeowToolbox.exe directly. The main program contains no high-risk code at all; high-risk features come only from the external plugin DLLs in the plugins directory.
4. Confirm Operations as Prompted

   All modifications, deletions and cleanups require manual confirmation; leftover and locked items are unchecked by default.

The program has built-in global exception catching and logging. If startup fails, open %LocalAppData%\LetsMeowToolbox\logs to check the log file for the corresponding date.

System Requirements and Security Design

System and Architecture

Only Windows 10 / 11 (x64) is supported. Tech stack: WPF · .NET 8 (LTS) · C# · HandyControl.

Security Design

No packing, no obfuscation, no self-extraction logic; the underlying layer only calls Microsoft's native Win32 APIs (RestartManager, MoveFileEx, Registry, etc.).

Built-in Blacklist

Core system directories such as C:\Windows, System32 and WinSxS, as well as core system processes, are forbidden from being force-terminated.

Open Source License

The project is open sourced under the GPL-3.0 license; the main program code is separated from the high-risk plugins, and you can review and build it yourself.

FAQ

Double-clicking the framework-dependent version does nothing / it won't open

Please install the .NET 8 Desktop Runtime first (choose ".NET Desktop Runtime 8.x"). If you don't want to install the runtime, download the self-contained version directly — it ships with the runtime and works with a double-click.

Where are the logs

Logs are located at %LocalAppData%\LetsMeowToolbox\logs\meow-DATE.log. Paste %LocalAppData%\LetsMeowToolbox\logs into the Explorer address bar and press Enter to open the directory.

The interface background became a solid color

On non-Win11 systems the background may automatically fall back to a solid color. This is expected behavior and does not affect functionality.

The high-risk plugin zone is empty

The main program itself contains no high-risk code; high-risk plugins are only loaded after you place their DLLs into the plugins directory alongside the program.

Other Ways to Get It

GitHub Releases

View all historical versions and release notes, and manually pick any package.

EZ-Mirror Mirror Site

An accelerated download line provided by EZ-Mirror; switch it in the "Download Line" above. The mirror only syncs versions already published to that site.

Source Repository

Clone the repository and use the publish scripts under the build directory to build the single-file version yourself.

.NET 8 Desktop Runtime

Before using the framework-dependent version, download and install .NET Desktop Runtime 8.x here.

This is a Vibe-Coding work, and every release is personally tested by the author. Author: Hatasoft-Studio; the project homepage and issue tracker are on the GitHub repository.