I built a free dev tools site after almost leaking my staging credentials into a "popular" online JWT decoder

Was debugging a JWT token last month. Opened one of those popular online decoders, pasted my token — then checked the Network tab. POST request. My entire token (which included a staging database URL) was being sent to their server. I looked for a client-side alternative and couldn't find one that had all the tools I needed. So I spent the last couple months building ApexApps.in. It's 10 free dev tools that run entirely in your browser: JSON Formatter (format / validate / minify) JWT Decoder — completely offline CSS Minifier SQL Formatter Base64 Encoder/Decoder Regex Tester with live match highlighting Cron Builder (visual + plain English explanation) Color Tools (HEX/RGB/HSL + WCAG contrast checker) Timestamp Converter HTML Formatter with live preview You can verify the privacy claim yourself: DevTools → Network tab → use any tool → zero POST requests. Everything runs through the local V8 engine so it's also faster than server-based tools for large files. Happy to answer questions abo