ASCII Character Ramp Analyzer

Render candidate characters to Canvas and sort them by measured pixel coverage for image-to-ASCII work.

Candidate characters

Runs locally in your browser. Image tools use the File API and Canvas; images are not uploaded.

How to use this ASCII Character Ramp Analyzer

Measure character ink coverage and build a dark-to-light ramp in the browser. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.