Automatically solve CAPTCHAs using cutting-edge AI — no manual intervention needed.
📥 Download v0.3.1 · 🌐 Website · 📊 Dashboard · 💬 Discord ·
- 🔧 Improved Geetest v4 Slide solve accuracy with human-like drag simulation
- 🛡️ Enhanced reCAPTCHA detection reliability
- 🎯 Added Binance CAPTCHA solver support
- ⚡ Faster background task resolution and reduced latency
- 🐛 Bug fixes across content scripts and proxy handling
- 🌍 Multi-browser build pipeline (Chrome MV3, Firefox MV2, Edge MV3)
| CAPTCHA Type | Status | Notes |
|---|---|---|
| PopularCaptcha (Image / Grid / BBox / Multi) | ✅ Supported | Full challenge-type coverage |
| reCAPTCHA v2 (Visible & Invisible) | ✅ Supported | Checkbox + image challenges |
| reCAPTCHA v3 | ✅ Supported | Score-based token generation |
| AWS WAF CAPTCHA | ✅ Supported | Puzzle-based challenges |
| Geetest v3 (Slide / Click) | ✅ Supported | Multiple challenge modes |
| Geetest v4 (Slide) | ✅ Supported | Adaptive slide solving |
| BLS OCR / Text CAPTCHA | ✅ Supported | Optical character recognition |
| mtCaptcha | ✅ Supported | Interactive widget solving |
| CaptchaFox | ✅ Supported | Widget auto-solve |
| Tencent CAPTCHA | ✅ Supported | Slide & puzzle challenges |
| TikTok CAPTCHA | ✅ Supported | Slide, circle, and click types |
| Prosopo / Procaptcha | ✅ Supported | PoW-based challenges |
| Binance CAPTCHA | ✅ Supported | Custom puzzle challenges |
| Universal OCR | 🔜 Coming Soon | General-purpose text recognition |
- 🤖 AI-Powered Solving — Leverages advanced AI models for high-accuracy CAPTCHA resolution
- 🔌 Zero-Config Integration — Works automatically on any website with supported CAPTCHAs
- 🌐 Multi-Browser Support — Chrome, Firefox, Edge, Brave, and all Chromium-based browsers
- 📱 Mobile Compatible — Touch event simulation for mobile browser environments
- ⚙️ Custom API Endpoint — Connect your own solving infrastructure via settings
- 🔐 Integrity Verification — Built-in WASM-based request signing for tamper-proof communication
- 🎨 Theming Support — Light & dark mode with customizable popup UI
- 📊 Analytics Dashboard — Track solve rates, usage, and performance at my.captchasonic.com
- 🧩 Proxy Management — Built-in proxy support with health checking and rotation
- 🔄 Auto-Retry Logic — Smart retry with countdown notifications on transient failures
- Download the latest release for your browser from the Releases Page.
- Follow the guide for your browser:
- 🟢 Chrome / Brave / Edge: Chrome Installation Guide
- 🟠 Firefox: Firefox Installation Guide
| Command | Browser | Manifest |
|---|---|---|
bun run build:chrome |
Chrome / Brave / Edge | MV3 |
bun run build:firefox |
Firefox | MV2 |
bun run build:edge |
Edge | MV3 |
bun run build:all |
All browsers | — |
- Install the CaptchaSonic extension in your browser.
- Visit any webpage with a supported CAPTCHA challenge.
- Relax — CaptchaSonic detects and solves the CAPTCHA automatically.
No manual clicking, no tokens to copy — it just works.
captchasonic-extension/
├── entrypoints/ # Content scripts for each CAPTCHA type
│ ├── background.js # Service worker (task routing, API calls)
│ ├── popup/ # Extension popup UI (SolidJS + Tailwind)
│ ├── options/ # Settings page
│ └── *.content.js # Per-CAPTCHA detection & solving logic
├── src/
│ ├── tools.js # Shared utilities (DOM, canvas, drag simulation)
│ ├── integrity.js # WASM-based request signing
│ └── proto/ # Protobuf definitions
├── public/
│ ├── icons/ # Extension icons
│ ├── _locales/ # i18n strings
Tech Stack: WXT Framework · SolidJS · Tailwind CSS v4 · AssemblyScript / WASM · Protobuf
| Resource | URL |
|---|---|
| 🌐 Homepage | captchasonic.com |
| 📊 Dashboard & Pricing | my.captchasonic.com |
| 💬 Discord Community | discord.captchasonic.com |
| telegram.captchasonic.com | |
| 📥 Releases | GitHub Releases |
Is CaptchaSonic free to use?
CaptchaSonic offers free usage during the beta period. Paid plans with affordable pricing will be available after the beta ends.
Which browsers are supported?
Chrome, Firefox, Edge, Brave, Opera, and any Chromium-based browser. The extension ships with MV3 for Chrome/Edge and MV2 for Firefox.
How accurate is the CAPTCHA solving?
CaptchaSonic uses advanced AI vision models to achieve high solve rates. Accuracy varies by CAPTCHA type — popularCaptcha and reCAPTCHA typically see 90%+ success rates.
Can I use my own API endpoint?
Yes. Go to the extension settings and configure a custom API endpoint to route solve requests through your own infrastructure.
Does it work with proxies?
Yes. CaptchaSonic includes a built-in proxy manager with health checking, rotation, and support for HTTP/HTTPS/SOCKS5 protocols.
Can I suggest new CAPTCHA types or features?
Absolutely! Open an issue in this repository or reach out on Discord or Telegram.
We welcome contributions! To get started:
- Fork the repository
- Create a feature branch (
git checkout -b feature/my-feature) - Commit your changes (
git commit -m 'feat: add my feature') - Push to the branch (
git push origin feature/my-feature) - Open a Pull Request
Please follow our Contribution Guidelines and ensure all builds pass before submitting.
CaptchaSonic is licensed under the MIT License. See the LICENSE file for details.

