Image To ASCII Art

Convert image luminance values into character-based ASCII art directly in the browser, with transparent pixels composited against a light background.

Result
Waiting for image

The image brightness map was converted into lines of printable ASCII characters.

Width
80
Lines
0
Charset
standard
ASCII Output
Upload an image to generate ASCII art.

How The Tool Works

The browser downsizes the image, composites transparent pixels against white, measures the luminance of each sampled pixel, and maps darker and lighter values to different characters.

Character width and the selected charset change how much detail the final ASCII art can preserve.

Quick Examples

Detailed charsets produce richer shading but denser output.
Lower widths are useful for compact terminal-friendly ASCII art.
Higher widths preserve more source detail at the cost of longer output.
Local image processing is useful for private assets and quick experiments.

Frequently Asked Questions

Why does the output look stretched?

Text characters are taller than they are wide, so the tool compensates with a height ratio, but fonts still affect the final look.

Can I use the output in terminals or markdown?

Yes. The result is plain text, so it works well in monospaced contexts.

Does color matter here?

Only indirectly. The tool converts the image to brightness values before mapping them to characters.

What images work best?

High-contrast images and portraits with clear shapes usually translate well into ASCII art.

Useful Notes

ASCII art conversion is a text-generation workflow, not an image-preserving one, so fine details will always be simplified.

Changing the width and charset is often enough to get noticeably better results from the same image.

Monospaced display is important for the output to keep its intended shape.

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