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.

Ramp candidates are measured as grapheme units

Candidate deduplication no longer splits combining/emoji sequences. The review flags two-column glyphs because density ramps are most portable with one-column monospace characters.