A high-performance image processing utility for seamless format conversion and batch optimization.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install image-converter
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install image-converter using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is Image Converter?
The Image Converter is a robust utility designed for the Openclaw Skills ecosystem that enables developers and users to transform visual assets across multiple formats including PNG, JPG, WEBP, SVG, and GIF. By leveraging local processing power via Python's Pillow and CairoSVG libraries, it ensures maximum privacy and speed without relying on external cloud APIs.
This skill is particularly valuable for web developers and content creators who need to optimize assets for performance or compatibility. It handles complex transitions, such as converting transparent PNGs to solid-background JPEGs or rasterizing vector SVGs, all while maintaining granular control over output quality and compression ratios.
Image Converter Use Cases
- Rapid conversion of high-resolution PNG files to optimized WEBP formats for web performance.
- Batch processing entire directories of images to a unified format for consistent project assets.
- Converting SVG vector files into raster formats like PNG for broader application compatibility.
- Optimizing JPEG quality to reduce storage footprints in large-scale Openclaw Skills workflows.
How Image Converter Works
- The user provides an input image path or a directory for batch processing.
- The skill identifies the target format and checks for necessary library support (Pillow for standard formats, CairoSVG for vector tasks).
- It automatically handles color mode conversions, such as flattening RGBA transparency to RGB when saving as JPEG.
- The processing engine applies user-defined quality settings (defaulting to 95%) to balance file size and visual fidelity.
- The converted file is saved to the specified destination, returning a success status or detailed error log.
Image Converter Setup
To use this within your Openclaw Skills environment, ensure you have Python 3 installed and run the following command to install the required dependencies:
pip install pillow cairosvg
Image Converter Data Schema & Taxonomy
The Image Converter manages data through a structured input-output mapping. It tracks file metadata to ensure proper extension handling and mode compatibility.
| Feature | Supported Formats |
|---|---|
| Full Bidirectional | PNG, JPG, WEBP, GIF, BMP |
| Vector Support | SVG to Raster conversion |
| Metadata Preservation | Basic EXIF and quality flags |
| Output Modes | RGB, RGBA, L (Grayscale), P (Paletted) |
Image Converter Advanced Features
- Smart transparency handling that prevents errors when converting alpha-channel images to non-alpha formats.
- Support for batch conversion workflows allowing for hundreds of files to be processed in a single execution loop.
- Custom quality parameters allowing users to define the specific compression level for WEBP and JPEG outputs.
- Local-first architecture ensuring that sensitive visual data never leaves your machine during the conversion process.
SKILL.md
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