I Built a Set of Dev Tools That Work Offline, Don’t Track You, and Just Work

Quick intro: This is a side project I’ve been building and using myself, and I finally decided to polish it and share it.

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🛠️ What is ToolShelf?

ToolShelf is a fast, privacy-conscious collection of developer utilities.

It runs entirely in the browser — no registration, no popups, no nonsense.

Perfect for:

• Backend devs (like me),
• Frontend folks,
• Writers and tinkerers,
• Anyone who’s tired of searching “base64 decode” or “quick hash generator” again and again.

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🔍 What’s Included?

A focused set of tools I actually use — built for speed and clarity.

• Hash Generator: MD5, SHA-1, SHA-256, SHA-3, Blake2, HMAC, batch mode
• Text Transformer: Uppercase, lowercase, sort, trim, remove duplicates
• Base64 Encoder/Decoder: Paste text or upload files
• JSON Formatter: Beautify, minify, validate, JSONPath
• QR Code Generator: Contact, WiFi, logo, bulk CSV, export to PNG/SVG/PDF

✅ Works offline after first load

🌗 Light/Dark mode toggle

📱 Mobile-friendly

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🧠 Why I Built It

I got tired of:

• Sketchy browser extensions
• “Free” tools that track everything
• Cookie banners, ads, and overly bloated pages

I just wanted something clean, reliable, and fast — especially for local dev, debugging, or working with production data.

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🔐 Privacy-First by Design

• No login or user data collected
• No cookies (just localStorage for theme)
• No server processing of input data
• Google Analytics 4 is used in anonymized mode — only to understand which tools are popular

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🚀 Try It Out

• QR Generator
• Base64 Encoder
• JSON Formatter
• Hash Generator
• Text Transformer

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💬 Feedback is Welcome

If you try it, I’d love to hear:

• What’s useful?
• What’s missing?
• What tool should I add next?

This is 100% a personal/indie project. Just something I wanted to build — and hopefully, something you'll find handy too.

Thanks for reading! 🙏

→ https://toolshelf.tech