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Download CapyBro 2.0.3 for Windows

AI text rewriter for Windows on a single global hotkey

Roman Tykhonenko AI assistants & LLMs

CapyBro is a Windows tray utility that brings AI to any text on your PC via a global hotkey. Select text in any application (Word, Telegram, Outlook, browser, code editor) and press Ctrl+Shift+E - AI rewrites it in place. Fix grammar, translate between languages, paraphrase, formalize tone, or run your own custom prompts. Two AI modes: cloud-based via OpenRouter (one API key gets you GPT, Claude, Gemini, DeepSeek and dozens of other models) or fully local via Ollama - your text never leaves your computer. The core application is open-source under the MIT license. A Pro tier (one-time payment) unlocks usage statistics, settings backup, history export, a model-switch hotkey, and curated prompt packs. Native .NET 8 WPF application - lightweight, no Electron. Available in English, Ukrainian, and Russian.

Publisher’s description

What is CapyBro?

CapyBro is a free ai assistants & llm program for Windows from Roman Tykhonenko. It is written in C#.

Installation and requirements

Official installers exist for 64-bit as EXE (NSIS). It can be installed for the current user only, without administrator rights. The installer supports unattended (silent) installation.

Updates and version history

The current version is 2.0.3, released on October 8, 2026. 3 versions are listed since May 22, 2026, each with links to its own installer files. The last update is less than a month old.

Popularity and file types

The source code on GitHub (phantasmat2018/capy-bro) has 7 stars. Similar programs include Claude Code, Codex CLI and ChatGPT.

Pros / Cons

Pros

  • Free to use
  • Documented silent install
  • Installs without administrator rights
  • Updated in the last two months

Cons

  • No native ARM64 build

In short: CapyBro is a free ai assistants & llm tool for 64-bit PCs. Administrators can deploy it unattended.

Is CapyBro 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: 338D4890EE388567922C00673B09CF38C42ABD31DDE9AE015DD2BB4151FBD1AF · Open the VirusTotal report for this hash
  • The link has not been checked yet
  • ExeAtlas does not host, wrap or modify installers

Related guide: How to check a file’s SHA256 hash on Windows

Recent versions

All 3 versions ›
2026: 3 3 26
VersionDateSizeFiles
2.0.3Latest October 8, 2026 — 64-bit EXE (NSIS)
2.0.2 June 27, 2026 — 64-bit EXE (NSIS)
2.0.0 May 22, 2026 — 64-bit EXE (NSIS)

Install from the command line

Silent install ›
PowerShell
wingetwinget install --id RomanTykhonenko.CapyBro -e
silentCapyBro-Setup-2.0.3.exe /S

Related guide: How to use winget: install and update apps

Information

Publisher
Roman Tykhonenko
Category
AI assistants & LLMs
Licence
Freemium
Price
Free
Source code
github.com/phantasmat2018/capy-bro
Written in
C#
Requires
Windows 11 / 10
Architecture
64-bit
Installer
EXE (NSIS)
Version
2.0.3
Released
October 8, 2026
Added to the catalogue
June 16, 2026
Versions listed
3
GitHub stars
7
Website
capybro.app
winget ID
RomanTykhonenko.CapyBro

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Frequently asked questions

Is CapyBro free?

Yes. CapyBro is free to use.

Is CapyBro 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 CapyBro 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.

Can CapyBro be installed silently?

Yes. The silent install page lists the exact command for each installer.

Does CapyBro run on ARM (Windows on Arm)?

There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.

Where can I download an older version of CapyBro?

The versions page lists all 3 versions with links to their official installer files, back to May 22, 2026.

Can I use CapyBro without administrator rights?

Yes, there is a per-user installer that does not need administrator rights.

What are alternatives to CapyBro?

Claude Code, Codex CLI, ChatGPT, GPT4All and Jan. The alternatives page compares them.

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