Hey Product Hunt! 👋 I'm the maker of CodeToolTip — and I built it out of pure frustration. As a backend engineer working daily with NestJS and Node.js, I was constantly jumping between tabs — JSONLint to format a payload, Base64Decode to inspect a token, JWT.io to debug auth issues, CyberChef to run a quick AES decrypt. Every single one of those sites is either: ❌ Riddled with ads that slow everything down ❌ Sending your sensitive data (JWTs, API keys, encrypted strings) to external servers ❌ Cluttered with complexity when you just need one quick result So I built CodeToolTip — a clean, fast, privacy-first developer toolkit that runs 100% in your browser. 🛠️ What's inside (20+ tools across 6 categories): • JSON Tools — Formatter, Minifier, Validator, Diff Checker, JSON to XLSX • Encoding — Base64 Encoder/Decoder, URL Encode, Hex to ASCII • Crypto — AES Encrypt/Decrypt, RSA Encrypt/Decrypt, Hash Generator (MD5, SHA-256, SHA-512) • JWT Decoder — Inspect tokens safely, nothing ever leaves your machine • Image Tools — Format Converter, Image to Base64, Base64 to Image • Data Tools — UUID Generator, Word Counter, SQL Formatter ⚡ Why CodeToolTip is different: ✅ 100% browser-based — zero server calls, zero data uploads ✅ Blazing fast — no page reloads, instant results ✅ Zero ads — clean UI, no distractions ✅ Privacy-first — your JWTs, keys, and encrypted data stay on YOUR machine ✅ No sign-up required — open and use immediately 🔒 Privacy matters more than ever. When you paste a JWT or an AES-encrypted payload into a random online tool, you have no idea what happens to it on the server side. With CodeToolTip, there IS no server side. Used by developers across USA, UK, India, China, and Japan for their daily workflows. 💬 I'd love your feedback: — Which tools do you use most? — What other utilities should I add next? — How can I make the developer experience even better? Try it free at codetooltip.com — no sign-up, no ads, no nonsense. Just tools that work. 🚀

CodeToolTip

20+ dev tools, browser-only, blazing fast & zero ads

20+ dev tools, browser-only, blazing fast & zero ads