Sudoku100
FreeLiveLast verified 24 Sept 2026
Generates random or difficulty-picked Sudoku puzzle images (PNG/SVG/WebP) with unique solutions.
Example request
curl -s 'https://www.sudoku100.com/sudoku-img/easy' -o puzzle.png
Free tier, in plain English
Fully free with no API key, no signup, and no stated rate limit.
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