Show HN: Synonymizer – an experiment in non AI text adjustment (synonymizer.fyi)

Ever since hearing about the interesting key-based algorithmic approach to AI text watermarking (Google SynthID and the one I don't know the name of from Anthropic) I was curious about just swapping in synonyms. Built something fun to explore it. I suspect the watermarking from these labs actually goes off more than single-token assessments, and there's no public validator I can find to actually assess Synonymizer score against the watermark. But I thought it was fun to play with. Kind of an auto-mad-lib. :D Enjoy poking around with it on your Sunday afternoon