Hey dev community 👋
I've been building a collection of free online tools for
developers and businesses over the past few months.
Everything runs 100% in the browser — no server uploads,
no signup, no tracking.
Here's what's live right now:
🖼️ Image Tools
- Image Compressor (reduces PNG/JPG up to 80%)
- Image Resizer (exact px or percentage)
- Background Remover (AI-powered)
- Image Format Converter (JPG ↔ PNG ↔ WebP ↔ AVIF)
📄 PDF Tools
- Merge PDF, Split PDF, Compress PDF
- PDF to JPG, Word to PDF
💻 Developer Tools
- JSON Formatter & Validator
- CSS Minifier, JS Minifier, HTML Formatter
- Regex Tester, Color Picker, URL Encoder
- UUID Generator, JWT Decoder, Unix Timestamp Converter
🔐 Security Tools
- Password Generator (client-side only)
- Hash Generator (MD5, SHA-256, SHA-512)
- Base64 Encoder/Decoder
🧮 Calculators
- Age Calculator, BMI, Currency Converter (live rates)
- Loan EMI Calculator, Mortgage Calculator
- Percentage, Tip, Unit Converter
🤖 AI Tools
- Grammar Checker, Text Summarizer
- AI Blog Writer, Ad Copy Generator
📱 Video Downloaders
- TikTok, YouTube, Instagram, Facebook downloaders
💰 Finance Tools
- Invoice Generator, VAT Calculator, Discount Calculator
And 80+ more...
Tech stack: Next.js 14, TypeScript, Tailwind CSS, Vercel
All tools: https://www.codexstudio2026.com/tools
Happy to answer questions about any of the implementations!
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