Configurable CAPTCHA library built around accessibility and simplicity, earning about $5k in its first year and drawing roughly 4k monthly uniques before being open sourced. Sold via Transferslot; price undisclosed.
This database tracks 190 Developer Tools exits, and the ones that disclosed a price sold at a median of $23,000. Category matters more than founders expect: buyers apply different discount rates to a content business, a mobile app and a B2B tool even at identical revenue.
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