Every day, millions of developers copy-paste sensitive data into random online tools. A JSON response from a production server into an online formatter. A snippet containing a database connection string into a snippet manager. A UI design file from Figma into an online image cropper. We do it because it’s fast. But we rarely stop to ask: where is this data actually going? If you paste a JSON payload with a live Bearer token into a standard online formatter, that token travels across the internet to a third-party server. If you upload a design file containing proprietary UI to an online cropper, that intellectual property is now sitting on someone else's hard drive. For side projects, we might not care. But for client work or proprietary code, this is a massive security hole. The "Local-Only" Alternative Over the last few months, I've been building a suite of browser-native tools that process everything locally. Because they use native JavaScript APIs, the data never triggers a network request.…