Image to ASCII Art Generator - Online Text Picture Converter

What is an Image to ASCII Art Generator?

An Image to ASCII Art Generator converts your photos or images into text-based artwork using ASCII characters. Each pixel or region of the image is mapped to a character based on its brightness—darker areas get dense characters like "@" or "#", while lighter areas get characters like "." or spaces. The result is a recognizable text representation of your image that can be shared anywhere plain text is supported.

How does the conversion work?

The tool loads your image onto an HTML5 Canvas, scales it down to match your chosen output width, then samples each pixel's grayscale brightness. Using the formula gray = 0.299R + 0.587G + 0.114B, it maps brightness values (0–255) to positions in your selected character set. Darker pixels map to denser characters, creating the illusion of shading in pure text.

What's the best character set to use?

It depends on your goal. The Standard set (@%#*+=-:.) offers a good balance of detail and readability. The Detailed set provides finer gradations for complex images. Blocks (█▓▒░) create a solid, pixel-art look. Simple sets work well for high-contrast images or when you want a minimalist style. You can also enter a custom character set to experiment.

Can I use the generated ASCII art anywhere?

Absolutely! The plain text output can be pasted into emails, social media posts, forum signatures, code comments, terminal displays, or any text-based environment. The colored HTML version preserves the original colors and can be embedded in web pages. ASCII art is universally compatible since it uses standard text characters.

What image formats are supported?

The tool supports all common image formats including JPEG, PNG, WebP, GIF, BMP, and SVG (rasterized). For animated GIFs, only the first frame is processed. Maximum recommended source image size is around 4000×4000 pixels—larger images will be automatically downscaled for efficient processing. All processing happens locally in your browser.

Is my image uploaded to a server?

No. This tool runs entirely in your browser using client-side JavaScript and the HTML5 Canvas API. Your images are never uploaded to any remote server. The file stays on your device, ensuring complete privacy and security. This also means the tool works offline after the page loads.

How do I get the best ASCII art results?

For optimal results: (1) Use images with good contrast and clear subjects. (2) Adjust the Output Width—higher values give more detail but may be harder to view. (3) Tweak Brightness and Contrast to bring out details. (4) Experiment with the Height Scale to correct aspect ratio distortion. (5) Try different character sets to find the best aesthetic. (6) For portraits, a width of 60–100 characters usually works best. (7) Enable Invert for images with light backgrounds.

What is the "Color HTML" mode?

When Color HTML mode is enabled, each character in the output is wrapped in a <span> tag with the original sampled color applied. This creates a colored ASCII art effect that preserves the hues of your original image. The output can be copied as HTML and pasted into web pages, blogs, or any rich-text editor that supports HTML. Note that colored output is larger in file size and may be slower to render at very high widths.

Why does my ASCII art look stretched?

ASCII characters are not square—they're typically about twice as tall as they are wide. The default Height Scale of 0.50 compensates for this by sampling fewer rows, making the output proportions closer to the original image. Adjust the Height Scale slider to fine-tune: increase it (toward 0.70) if the output looks too flat, or decrease it (toward 0.30) if it looks too tall.