ASCII Art Generator from Image
Convert any image into text-based ASCII art. Customize the detail level and character set for different artistic effects.
This tool converts an image into ASCII art by analyzing its pixel data. Here's a breakdown of the process:
- The image is drawn onto a hidden canvas element, making its pixel data accessible.
- The script iterates through the image in small blocks, determined by the 'Detail Level' slider.
- For each block, it calculates the average brightness (luminance).
- This brightness value (from black to white) is then mapped to a character from the selected character set. Darker areas get characters like '.' or '`', while brighter areas get characters like '#' or '@'.
- The characters are assembled into lines of text, creating the final artwork.
Why does lower detail level look more detailed?
The 'Detail Level' slider controls the size of the pixel block that is sampled for each character. A smaller block size means the tool is analyzing smaller parts of the image, resulting in a more fine-grained and detailed ASCII representation. A larger block size averages bigger areas, creating a more abstract look.
Which images work best?
Images with high contrast and clear subjects (like portraits or simple objects) tend to produce the best results. Complex, 'busy' images may look jumbled.
Is my image uploaded to a server?
No. This tool is 100% private. All image processing happens in your browser. Your files are never sent to a server.