I built PlayTools because I kept bouncing between a dozen different sites for simple stuff — a loan calculator here, a JSON formatter there, a favicon generator somewhere else — each one cluttered with ads or asking me to sign up just to see a result. PlayTools puts 67 of these tools in one place: 💰 Finance — loan/mortgage/auto loan calculators, compound interest, ROI 📅 Date & Time — age calculator, timezone converter, business days 🛠️ Developer — JSON/YAML/CSV converters, regex tester, JWT decoder, cron generator 🔍 SEO — meta tag generator, robots.txt generator, keyword density checker 📝 Text — word counter, case converter, diff checker, markdown editor 🖼️ Images — compressor, resizer, favicon & app icon generators ⚙️ Utilities — password generator, unit converter, QR code generator A few things I care about: - No sign-up, ever — open a tool and use it immediately - Most tools run entirely client-side, so your data (images, text, numbers) never leaves your browser - Free, and staying free Still actively adding tools based on what people ask for, so I'd love to hear which ones you'd want next — or any bugs you spot. Thanks for checking it out! 🙏

PlayTools

free calculators, converters & dev tools — no sign-up

free calculators, converters & dev tools — no sign-up