Text improvement in one click
Select text in any program → press a hotkey → AI rewrites, fixes errors, or translates it. Works in Word, Telegram, browser, email client — everywhere.
Free version forever. Pro — one-time payment, no subscription.
Hi. I want to take vacation next week from Monday to Friday because I have family things. Hope it's not gonna be a problem with work.
Dear team, I would like to request leave from next Monday through Friday inclusive due to personal family circumstances. Thank you in advance for your understanding.
Features
Everything you need for fast text work
No bloat, no ads, no tracking. A utility for people who write a lot and want to write better.
Hotkey everywhere
Works in Word, Telegram, Chrome, Outlook, VS Code — any program with text. Select → press → get result.
Cloud AI or local
Choose OpenRouter (access GPT, Claude, Gemini in one account) or Ollama — fully local AI, your text never leaves the computer.
Custom prompts
Create unlimited template commands: «Fix grammar», «Translate», «Rewrite formally», «Make twice shorter». A hotkey for each one.
Privacy by default
API keys encrypted locally (Windows DPAPI). History stored only on your computer. In Ollama mode — text never goes to the network at all.
Three UI languages
English, Ukrainian, Russian — switch instantly. AI models support many more languages: the response will be in whatever language you request.
Open source
Full code is open on GitHub under MIT license. Anyone can verify exactly what the program does — especially important for working with confidential text.
What it looks like
Clean interface. Nothing unnecessary.
The program lives in the tray and stays out of the way. Settings open only when you need them.
settings.png
Settings
One screen — all the main parameters. Hotkeys, AI provider (cloud or Ollama), timeout, interface language.
prompts.png
Prompts
Create unlimited prompts. Separate hotkey and dedicated model for each — if needed.
history.png
History
Every operation is stored locally. You can re-copy the result or return to the original text.
Replace these placeholders with real screenshots: public/screenshots/ (settings.png, prompts.png, history.png)
Pricing
Free for everyone. Pro — for those who want more.
Base version stays free forever. Pro — one-time payment, no monthly fees.
Free
Everything you need for everyday work. No ads, no time limits.
- Text improvement via hotkey
- OpenRouter + Ollama (both providers)
- Unlimited custom prompts
- History of last 50 operations
- 3 UI languages
- Basic updates
Pro
Premium prompt packs, history export, extra themes + all future updates.
No subscription · 14 days money-back
- Everything from the free version
- 5 premium prompt packs (~50 ready)
- Unlimited history + export to file
- 5 extra color themes
- System prompt editing
- Priority email support
- All future updates free forever
Full comparison
| Feature | Free | Pro |
|---|---|---|
| Text improvement via hotkey | ||
| OpenRouter (GPT, Claude, Gemini in one account) | ||
| Ollama (local AI, full privacy) | ||
| Custom prompts | unlimited | unlimited |
| Built-in prompt presets | 3 pcs. | 3 pcs. |
| History of operations | last 50 | unlimited |
| Premium prompt packs (~50 ready) | — | |
| Extra color themes (5 pcs.) | — | |
| Export history to file (CSV / JSON) | — | |
| Settings backup | — | |
| System prompt editing | — | |
| Usage statistics | — | |
| Priority email support | — | |
| All future updates | — | forever |
| "Supporter" badge in app | — |
No monthly payments. Buy once — use for years.
Which operating systems are supported?
For now, only Windows 10 and Windows 11 (x64). macOS and Linux versions are not planned — the program uses specific Windows APIs for hotkeys and text-pasting into other programs.
Is internet required for it to work?
Depends on the mode. In OpenRouter mode — yes, because the AI runs in the cloud. In Ollama mode — NO, the AI runs right on your computer with zero network requests. You can fully disable internet and the program will still work.
Which AI models are supported?
Through OpenRouter — all the major ones: GPT-4o, Claude Sonnet, Gemini, Llama, DeepSeek, Mistral, and others (the full list is constantly updated). Through Ollama — any model you've downloaded locally (gemma, llama, mistral, qwen, etc.).
How much does cloud AI cost to use?
OpenRouter charges per use — you pay per thousand tokens. A typical «fix text» request costs roughly $0.0001–0.001 depending on the model. A $5 top-up on OpenRouter lasts months of active use. CapyBro shows the estimated cost of the request before sending it.
What's included in the Pro version for $19?
5 premium prompt packs (Legal, Marketing, Academic, Code Review, Business Correspondence), unlimited history with CSV/JSON export, 5 extra color themes, system prompt editing, usage statistics, priority email support, and all future updates free — forever.
Is this a subscription or one-time payment?
One-time payment. Pay $19 once — use Pro forever, with all future updates included. No monthly or yearly payments.
On how many computers can I use Pro?
Up to 3 devices with one key — for example home, work, and laptop. If you need more — write to support@capybro.app.
What if I don't like it after purchase?
14 days money-back guarantee. Write to support@capybro.app — I'll refund without unnecessary questions. It's not a marketing trick, it's a real policy.
Is it safe to enter the OpenRouter API key in the program?
Yes. The key is stored only on your computer, encrypted via Windows DPAPI (the standard Windows mechanism for secrets). It's never sent to any third-party server except OpenRouter itself. The code is open — you can verify.
What if I don't want to trust anyone with my text?
Enable Ollama mode. It's a fully local AI that runs on your computer. Install Ollama from ollama.com, download a model (e.g., «ollama pull gemma3»), switch CapyBro to Ollama — and your text never leaves the machine. A moderately powerful computer is needed (8+ GB RAM for small models, 16+ GB is better).
I'm from Ukraine / Poland / Georgia — will I be able to pay?
Yes. Gumroad accepts international Visa and Mastercard cards, as well as PayPal and Apple Pay. For Ukrainian cards you may need to enable «internet payments» in your bank app (Privat24, Monobank — that's a setting in card security).
Where to write with questions or bugs?
Email: support@capybro.app — I respond within 1–2 days. Or file an issue on GitHub: https://github.com/phantasmat2018/capy-bro/issues — there you also see the full history of known bugs and planned features.