ToolNest v2.0: Added Client-Side PDF Tools, Regex Tester & QR Code Generator (25 Free Tools)

Ayaan shaikh — Mon, 24 Aug 2026 15:29:36 +0000

We've all been there: you need to quickly merge two PDF documents, format an API payload, or test a regular expression, but every tool online forces you to:

❌ Create an account or sign in with Google
❌ Hit a "daily usage quota" or paywall
❌ Upload sensitive contracts, bank statements, or API keys to unknown third-party servers
❌ Navigate through dozens of intrusive popups and fake download buttons I got tired of this broken developer experience, so I built ToolNest — a fast, clean, and 100% client-side utility hub. Today, I’m excited to launch ToolNest v2.0, expanding the platform to 25 free utilities with a brand new in-browser PDF suite, live dark mode, and zero-scroll sidebar navigation. --- ### 🌐 Live Platform 👉 toolnest.shaikhayaan.com (No login required) --- ### 🔥 What's New in ToolNest v2.0? #### 1. In-Browser PDF Suite (100% Client-Side) Unlike services that upload your PDFs to remote cloud servers, ToolNest processes documents directly in your browser memory:
📄 PDF Merger: Combine multiple PDFs with drag-and-drop reordering.
✂️ PDF Splitter: Extract specific pages or custom ranges (e.g. 1-3, 5, 8-10).
🖼️ Images to PDF: Convert JPG/PNG batches into multi-page A4 or native-fit PDFs.

* 📸 PDF to Images: Render all PDF pages into high-res 2x PNG images with 1-click download.

2. Essential Developer & Security Tools

🧪 Regex Tester: Real-time match highlighting with quick presets (Email, URL, IP, Dates, Hex).
🔐 SHA Hash Generator: Instant SHA-1, SHA-256, SHA-384, and SHA-512 cryptographic digests using the native crypto.subtle API.
📋 JSON Formatter & Validator: Beautify, minify, and inspect syntax errors according to RFC 8259.
🔑 UUID v4 Generator: High-entropy batch identifier generation.
🛡️ Password Generator: CSPRNG-powered random credentials with live entropy strength meter.

* 🔤 Base64 & URL Encoder/Decoder: UTF-8 safe component transformations.

3. Text, Media & SEO Utilities

📱 QR Code Generator: Generate custom-colored, high-resolution QR codes with adjustable error correction (up to 1024px PNGs).
📝 Text Diff Checker: Side-by-side comparison highlighting additions and deletions.
🔍 Meta Tag Generator: Generates HTML <head>, Open Graph, and Twitter Card tags with live character limit guidance.
🗜️ Image Compressor & Resizer: Reduce JPG, PNG, and WebP file sizes in-browser via HTML5 Canvas.

* 📊 Word Counter & Percentage Calculator.

⚙️ How It Works (Technical Architecture)

ToolNest is built on a Zero-Backend Processing architecture:

PDF Operations: Uses pdf-lib and Mozilla's pdfjs-dist to manipulate and rasterize PDF streams locally.
Cryptography & Hashes: Directly leverages window.crypto.subtle for hardware-accelerated SHA hashing.
Image Processing: Handled via HTML5 Canvas 2D rasterization without transmitting any bytes over the network.

* Hosting: Deployed on AWS Amplify with instant global CDN caching and Single-Page Application routing.

💬 I'd Love Your Feedback!

ToolNest is built for developers, designers, and students who value speed and privacy.
Try it out here: toolnest.shaikhayaan.com

Which tool do you use the most in your daily workflow?
What additional tool would you like to see added next? Drop your thoughts and feature requests in the comments below! 👇

I built ToolNest: A fast, privacy-first suite of free online developer tools

Ayaan shaikh — Sun, 23 Aug 2026 17:11:48 +0000

Hey everyone! 👋

I wanted to share a project I've been building called ToolNest (https://toolnest.shaikhayaan.com).

Why I built it:

Many popular online developer tools are bloated, full of intrusive popups, or require mandatory user signups. ToolNest is engineered to run 100% client-side inside your browser memory. Your images, JSON payloads, and text files never get uploaded to any remote server.

Included Free Tools:

🛠️ Developer: JSON Formatter, JSON Validator, UUID v4 Generator, Base64 & URL Encoder
🖼️ Image: Image Compressor, Resizer, JPG ↔ PNG Converters
📝 Text & Math: Word Counter, Case Converter, Password Generator, Color Converter, Percentage Calculator

Check it out at https://toolnest.shaikhayaan.com and let me know your thoughts and suggestions!

DEV Community: Ayaan shaikh