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App Are Cool - 260+ Dev Tools

ExtensionDeveloper Tools
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Item media 1 (screenshot) for App Are Cool - 260+ Dev Tools
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Item media 3 (screenshot) for App Are Cool - 260+ Dev Tools
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Item media 5 (screenshot) for App Are Cool - 260+ Dev Tools

Overview

Quick access to 260+ developer tools - JSON, XML, HTML, CSS, Crypto, Color tools and more!

Use this version without the separator lines: 🚀 App Are Cool - Your Ultimate Developer Toolkit Instant access to 260+ professional developer tools right from your browser toolbar! All tools run 100% client-side - your data never leaves your device. ​ 🎯 35+ SPECIALIZED TOOLKITS: 📦 Data Formats JSON Tools (13): Beautify, minify, validate, diff, path tester XML Tools (6): Beautify, validate, convert to/from JSON YAML Tools (5): Beautify, validate, convert HTML Tools (7): Beautify, minify, preview, encode/decode CSS Tools (8): Beautify, box shadow, gradients, flexbox generator 🔧 Developer Essentials String Tools (12): Password generator, UUID, case converter, slugify Color Tools (7): Picker, converter, palette, gradient, contrast checker Crypto Tools (8): MD5, SHA-256, AES encrypt/decrypt, bcrypt Encode/Decode (8): Base64, URL, HTML entity, JWT decoder 🔄 Converters Format Converters: JSON⇄XML, YAML⇄JSON, Markdown⇄HTML Unit Converters: Length, weight, temperature, speed, data size ✅ Validators Email, URL, JSON, XML, YAML, credit card, regex tester ⚡ Code Tools Minifiers: JS, CSS, HTML, JSON, XML, SQL Beautifiers: JS, CSS, HTML, SQL, PHP JS Obfuscator: Protect your JavaScript code 🌐 Network & API IP Lookup, DNS, CIDR Calculator, Subnet Calculator, Port Checker 📊 Generators QR Code, Barcode, UUID, Lorem Ipsum, Fake Data Charts: Pie, Bar, Line from your data 💰 Finance Tools (32) EMI Calculator, Compound Interest, SIP, ROI, Stock Average Currency Converter, Tip Calculator, Profit Margin 📅 DateTime Tools (11) Unix Timestamp, Timezone Converter, Cron Builder, Age Calculator 🎲 Random Tools (20) Random Numbers, Strings, Colors, Coin Flip, Dice Roll ✨ KEY FEATURES: 🔒 100% Privacy – All tools run locally in your browser ⚡ Blazing Fast – No server requests, instant results 🌓 Dark/Light Mode – Easy on your eyes 🔍 Quick Search – Find any tool instantly ⏱️ Recent Tools – Access your frequently used tools 💾 No Signup – Use all tools immediately 🏆 WHY CHOOSE APP ARE COOL? ✓ 260+ tools in one extension ✓ Clean, modern interface ✓ Regular updates with new tools ✓ Completely free, no ads ✓ Open source friendly ✓ Works offline 📢 PERFECT FOR: Web Developers Software Engineers DevOps Engineers Data Analysts UI/UX Designers Students learning to code 🌐 Visit https://apparecool.online for the full web experience! 📧 Feedback? We’d love to hear from you!

Details

  • Version
    1.0.0
  • Updated
    January 1, 2026
  • Offered by
    Sendwin
  • Size
    14.95KiB
  • Languages
    English
  • Developer
    Techrosh LLC
    wyoming 1309 Coffeen Avenue STE 1200, Sheridan, Wyoming 82801 Sheridan, WY 82801 US
    Email
    support@send.win
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes

Support

For help with questions, suggestions, or problems, please open this page on your desktop browser

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