Free online tools, no sign-up required
App Collection is a curated set of free, browser-based tools that you can use instantly. Whether you need to calculate compound interest on your savings, generate secure passwords, format JSON data, or test an AI image classifier, we have you covered. All tools are fast, mobile-friendly, and respect your privacy by running entirely in your browser. We now offer over 12 tools spanning finance, technology, health, and productivity categories.