A lightweight, gorgeous desktop utility for Windows, macOS, and Linux that turns raw screenshots into polished visual assets.
Achu (அச்சு) means `print` in Tamil. 🖨️
| 🎨 Canvas Beautification & Presets | 🛡️ Privacy Guard & Redaction |
|---|---|
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| 🤖 AI Issue Agent Integration | 🔍 OCR Text Extraction |
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- Beautification Layouts: Frame screenshots with custom padding, background blur, rounded corners, adjustable shadows, scale, and custom aspect ratios.
- Fluid Mesh Gradients: Generate premium multi-point mesh gradients for background wrappers, along with linear/radial gradients and solid colors.
- Browser Chrome Overlays: Instantly add polished browser mockups (macOS-style or Windows-style window controls) around your screenshots.
- Aspect Ratio Presets: Quickly format your graphics for popular social platforms like Twitter/X, LinkedIn, and Product Hunt.
- Auto-Scanning: Scans screenshots locally using Tesseract WASM to automatically detect credentials, API keys, passwords, credit card numbers, email addresses, IP addresses, phone numbers, and physical locations.
- Pixel-Perfect Redaction: Toggle visibility for individual detected items or redact all with one click.
- Gaussian Blur & Solid Masks: Choose between soft Gaussian Blur or clean 100% Solid Color masks.
- PNG Integrity: Suggests exporting to PNG format for redacted captures to ensure deleted/masked pixel values are completely scrubbed and unrecoverable.
- Automated Bug Reporting: Uses vision models to analyze your screenshot and generate full GitHub issue templates (titles, tags, reproduction steps, and system context).
- Multi-Provider AI support:
- Ollama (Fully Offline): Run models locally (e.g.,
llava-phi3) with no external data leaks. - Google Gemini:
gemini-2.5-flash - OpenAI:
gpt-4o-mini - Anthropic Claude:
claude-3-5-sonnet-latest
- Ollama (Fully Offline): Run models locally (e.g.,
- Direct GitHub Integration: Connect your repository and push the generated issue reports directly to GitHub.
- Right-Click OCR: Right-click anywhere on the canvas screenshot to extract text content instantly.
- Grab Text Modal: Edit, trim, format, and copy the extracted text to your clipboard.
- 100% Private: Runs Tesseract OCR in-browser via WebAssembly, performing text extraction locally on your machine.
- Drawing Tools: Annotate screenshots using rectangles (filled/outline), ovals (filled/outline), straight lines, arrows, freehand pen, custom text fields, and emojis.
- Full Object Control: Move, resize, delete, and re-order drawn annotation layers.
- Deep Edit History: Full support for multi-step Undo (
Ctrl+Z) and Redo (Ctrl+Y) operations.
| Shortcut | Description |
|---|---|
Ctrl + V / Ctrl + Alt + V |
Paste image from Clipboard |
Ctrl + Z |
Undo last action |
Ctrl + Y |
Redo last action |
Ctrl + Shift + S |
Copy beautified snap to clipboard |
Delete / Backspace |
Delete selected annotation object |
V or 1 |
Select / Move Tool |
R / Shift + R / 2 / 3 |
Rectangle Tool (Outline / Filled) |
C / O / Shift + C / 4 / 5 |
Circle / Oval Tool (Outline / Filled) |
L / A / 6 / 7 |
Line / Arrow Tool |
T / P / 8 / 9 |
Text / Freehand Pen Tool |
E / 0 |
Add Emoji Tool |
- Node.js 18 or higher
- npm
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Clone the repository:
git clone https://github.com/QAInsights/achu.git cd achu -
Install dependencies:
npm install
-
Launch development mode with Hot Reload:
npm run dev
Achu uses electron-builder to package lightweight native binaries for Windows, macOS, and Linux.
| Script | Action | Output / Description |
|---|---|---|
npm run build |
Compile code | Generates optimized production bundles in app-bundle/ |
npm run test |
Run tests | Runs unit and rendering tests using Vitest |
npm run test:coverage |
Coverage | Generates a coverage report via v8 |
npm run package |
Pack App | Builds production bundles and packages portable packages in release/ |
- Windows Target: Standalone portable
.exeexecutable (x64 / arm64). - Linux Target: Standalone AppImage and
.debpackages. - macOS Target: Standalone
.dmgdisk image and.ziparchives.
- Local OCR & Secrets Scanning: Tesseract WASM scans and extracts your screenshot text strictly locally inside the Electron sandbox. No images or text are sent to third parties during OCR or Privacy Guard runs.
- Secure Token Storage: All external AI keys and GitHub API tokens are stored using Electron's native safeStorage API, which encrypts credentials on disk using operating-system-level cryptography (Keychain on macOS, DPAPI on Windows, and Secret Service/KWallet on Linux).
If you find Achu useful, consider supporting development or checking out QAInsights resources:
- Sponsor & Donate: Buy Me a Coffee
- License: MIT License. See LICENSE for details.