Have I Been Pwned Has a Free API — Check If Any Email Was in a Data Breach

March 24, 2026 · Dev.to

I Built a Free Tool for Printable Conversion Charts – No Signup Required
The Problem As a developer who spends time in both the digital and physical worlds, I kept running into the same frustra
33 Tools for Mailchimp in One MCP Server — Here's How I Built It
I wanted to manage my Mailchimp campaigns from Claude without copy-pasting data between tabs. The existing MCP servers f
How I Added Dark Mode to a 37-Tool Vite SPA in One Prompt
I've been building RelahConvert — a browser-only image converter with 37 tools — and yesterday I decided to add dark mod
How Markdown Parsers Actually Work Under the Hood
Markdown to HTML conversion looks simple until you try to build a parser. The original Markdown specification by John Gr
Charting the OpenAI ‘ecosystem’
Map of the problematique