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CapyBro · Office #36,583

Rewrite any text in any Windows app via one global hotkey. Open-source.

In the Mac and Windows desktop utilities neighborhood (Desktop and utilities). In town since 11 Oct 2026.

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What Tablif read on CapyBro's site

CapyBro describes itself as: “CapyBro — Free AI Text Rewriter for Windows (Hotkey)”

What it is

Calls itself “AI writing assistant”.

  • Calls itself: AI writing assistant
“CapyBro is an AI writing assistant for Windows that works in any app.”

Where it puts itself

Positions itself as an alternative to Grammarly. Rules out “ads”, “subscription” and “tracking”.

  • Alternative to: Grammarly
  • Says it will not: ads · subscription · tracking
“ChatGPT Desktop opens a separate window — you have to copy your text in, wait for the response, copy it back. The Windows 11 Copilot key opens a sidebar that only works inside some Microsoft apps. CapyBro stays in your context: select text in any application, press one hotkey, the AI rewrites it where it already is.”
“What's the difference between CapyBro and Grammarly?”

What it costs

One-time purchase. A free tier, free forever. No monthly plan. Prices quoted: $0, $9.

  • One-time: yes
  • Monthly: no
  • Free plan: free forever
  • Price: $0 · $9
“$0 forever”
“Buy Pro — $9”

Who it sells to

Sells to consumers. Made for Developers, Students and Writers & creators. Available in 3 languages.

  • Sells to: consumers
  • Made for: Developers · Students · Writers & creators
  • Languages: English · Russian · Ukrainian
“Free for everyone. Pro — for those who want more.”
“Developers Commit messages, docstrings, error explanations, and ticket translation — right inside VS Code, the terminal, and GitHub. Local Ollama keeps proprietary code private.”

How it runs

A desktop app for Windows 10 and Windows 11. Runs locally and works offline. Hosted in the cloud. Distributed through the Microsoft Store. Offers an API. Open source. AI is the core of the product. You can bring your own API key.

  • Kind: desktop
  • Runs on: Windows 10 · Windows 11
  • Runs where: cloud / hosted · on the device, offline
  • Distributed via: Microsoft Store
  • API: yes
  • Open source: yes
  • AI role: core to the product
  • Bring your own key: yes
“CapyBro is a free, open-source (MIT) Windows tray app that rewrites, fixes, or translates selected text with AI on a global hotkey.”
“…v 2.0.3 · Windows 10 and 11”

What it works with

Replaces ChatGPT Desktop and Grammarly. Names Claude, GPT-4o and 3 more on its pages.

  • Replaces: ChatGPT Desktop · Grammarly
  • Names: Claude · GPT-4o · Gemini · +2
“CapyBro is an AI writing assistant for Windows that works in any app.”
“How is CapyBro different from ChatGPT Desktop or the Windows Copilot key?”

What it offers as proof

Live, no waitlist. Try it without signing up. Publishes docs.

  • Instant signup: yes
  • Trial asks for: nothing
“Download for free Buy Pro — $9”
“Download for free”

Sources

Tablif read these pages, last on 11 Oct 2026. Everything above is what the product says about itself; Tablif does not verify every claim.

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