FounderSold Database

WordPress plugin adding honeypot spam protection, database storage, redirection and webhooks to Contact Form 7. Its original developer announced on the WordPress.org support forum that the plugin had been acquired by WPExperts; price undisclosed.

Service that turned Google Sheets into REST APIs, built as an MVP in a week and doing about $800 MRR a year later. Sold for $35,000 to micro private equity firm Xo.Capital.

Tool that generated and maintained automated structured data markup for websites. Sold for $8,000.

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.

AI-powered service that produced automated code improvements and refactors for developers. Sold for $12,000.

Hotel price comparison API that aggregated room rates from 200+ booking websites and returned the top three vendors with addresses, reviews and ratings as JSON. Sold through the Transferslot marketplace; price undisclosed.

Chrome and Firefox extension for regex-powered find-and-replace text editing directly on web pages. The extension was acquired by another developer team and the original repository was retired.

An Atlassian Marketplace app that auto-generates readable documentation of a Jira instance's project configuration. Its maker sold his first company with his first app.

WordPress plugin for white-labelling the wp-admin dashboard (branding, logos, menus) for agencies and their clients. Solo developer Morgan Hvidt sold it to Link Software LLC, a small serial acquirer of micro plugins; price undisclosed.

A hand-curated web directory of public APIs, grown from an open-source GitHub repo started in January 2019 to 50,000+ monthly page views mostly from organic search. An API company approached the founder and bought it for $23,000.

Maker of an MCP server that lets AI assistants drive a live Unreal Engine editor by natural language to build blueprints, scenes, materials and VFX. Acquired by Aura; terms undisclosed.

LLM-friendly document generation aimed at developers, turning sources into clean machine-readable docs. Sold for $3,500.

A tool to build product landing pages directly inside a Notion workspace, made by Karthik; reached #2 Product of the Day on Product Hunt and was acquired for a four-figure sum.

Third-party plugin that pulled photos from a user Apple Photos shared album onto a TRMNL e-ink display. Built solo by Gustav Westling and acquired by TRMNL, becoming a first-party plugin.

A Notion call-to-action widget builder (Actions.so) made by Nandha; acquired within ~2 weeks for a mid four-figure sum.

RealEmail was an email-verification and validation tool that reduced bounces for senders; founder Stephen Nancekivell sold it for a five-figure sum on Acquire.com.

Turnkey WordPress developer tool that automates plugin generation, sold with brand, domain and codebase. Sold on Flippa to a buyer in Switzerland.

WordPress-focused SaaS/internet tool. Sold on Flippa, seller in the US to a buyer in Germany.

Data scraping tool that automates web scraping and data workflows; sold as a small indie product on Acquire.com and later grown by its buyer to roughly $1.7M ARR.

Hosted Dogecoin wallet and payments API with a Node.js client library for developers accepting DOGE. Acquired by Block.io; terms undisclosed.