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updated app to support to v2 useotools site
🧰 245+ free tools: QR codes, PDF, SEO, converters & calculators. No sign-up!
🧰 Useotools puts 245+ free, fast and private web tools in your pocket. QR codes, PDF tools, file converters, SEO checks, password tools and electrical calculators, all in one app. No account, no sign-up, no clutter. ✨ WHY PEOPLE USE IT 🔒 Private by design: most tools run right on your phone, so your files are not uploaded anywhere ⚡ Fast: open a tool and get the answer, with no waiting and no sign-up 💾 Downloads really save: QR codes, PDFs and converted files go straight to your phone, ready to share 🌙 Dark mode, and 15 languages 🆓 Free, with new tools added regularly 🎨 QR CODE DESIGNER Make QR codes for links, Wi-Fi, WhatsApp, contacts, email, SMS, locations, events, UPI, PayPal and Bitcoin. Pick a style, add a frame with "SCAN ME", change colours and shapes, put your logo in the middle. Every code is checked so it scans before you save it as PNG, SVG, PDF or JPG. 🔐 PASSWORDS & SECURITY • Strong password and passphrase generator • WordPress, Joomla, Drupal, phpBB and other CMS password hash generators, with the SQL to reset an account • Hash generator (MD5, SHA-256 and more), htpasswd and bcrypt • Password strength checker and email header analyser ⚡ ELECTRICAL & SOLAR • Battery backup time calculator (lead acid and lithium) • Solar panel, inverter and battery bank sizing • Voltage drop and wire size calculator (AWG and mm²) • Conduit fill, Ohm's law, LED resistor, kVA, power factor and electricity bill calculators 📄 PDF & FILES • Merge, split, compress and crop PDF • Add page numbers and extract images from PDF • Convert images, documents, audio and archives 🔍 SEO & WEBSITE TOOLS • Meta tag checker and generator, robots.txt and AI crawler blocker • Google index checker, hreflang validator, redirect checker • PageSpeed, keyword density and backlink tools • DNS lookup, IP location, WHOIS and server status 🔄 CONVERTERS & CALCULATORS • Units: length, weight, area, temperature, cooking and many more • Colour converter, number bases, case converter, Morse code • Loan, EMI, BMI, age and date calculators 👩💻 FOR DEVELOPERS • JSON editor, code formatter and minifier, cURL to code, cron expressions • chmod calculator, .htaccess generator, regex tester, JWT decoder • Hex, Base64 and URL encoders and decoders 📱 MADE FOR YOUR PHONE Find any tool in seconds with search, keep your recently used tools on the home screen, and use the back button the way you expect. Results can be copied, shared or downloaded with one tap. 💚 Useotools is made by a small team. If a tool helps you, please rate the app ⭐ and tell us what to build next at useotools.com.