I built 31 free developer tools in a weekend — here's what I learned

Every developer has that moment: you need to quickly format some JSON, test a regex, or decode a JWT. You Google it, click the first result, and get hit with cookie banners, newsletter popups, and the nagging feeling that your data is being shipped to some server. I decided to fix this. Over a weekend, I built 31 developer tools — all running 100% in your browser. No signup. No tracking. No data ever leaves your machine. The Collection Here's what's in DevTools Hub so far: 🔧 Data & Text Tools DevFormat — Format, beautify, validate & minify JSON Base64 Tool — Encode & decode Base64 for text and images URL Encode/Decode — Percent-encoding with component & full URL modes Lorem Ipsum Generator — Placeholder text in paragraphs, sentences, or words Markdown Preview — Live editor with GFM, tables, code blocks, task lists 🔐 Security & Auth HashGen — Generate MD5, SHA-256 & SHA-512 hashes JWT Decoder — Inspect headers, payloads, claims & expiration Password Generator — Crypto-strength random pa