Tools, Tips & Tutorials
Expert guides on image optimization, PDF tools, AI writing, web performance, and developer productivity.
Best Time to Send Money to Pakistan: Understanding Exchange Rate Fluctuations
Is there really a "best time" to send money to Pakistan? Here is what actually moves the needle on the exchange rate you get.
Currency Converter for Travelers: Convert PKR to Foreign Currency Before Your Trip
Traveling soon? Here is how to use a free currency converter to budget your trip, compare prices on the go, and avoid bad exchange counters.
Free AI Humanizer: How GMC Tools Makes AI Text Sound Human
Free AI Humanizer that rewrites ChatGPT output to pass AI detectors. No paid subscription needed. Works with GPTZero, Originality.ai, and more.
How to Rotate Pages in a PDF Without Special Software
How to Rotate Pages in a PDF Without Special Software Here's a clear, step-by-step walkthrough anyone can follow.
Free App Icon Generator — Create Android, iOS & PWA Icons in One Click
Upload one image and get all 24 app icon sizes for Android, iOS, and PWA in seconds — free, with custom colors, padding, and shape preview.
Android App Icon Sizes 2026: The Complete Guide (mdpi to xxxhdpi)
A complete reference for Android app icon sizes across all density buckets, plus the Play Store icon — and a free tool to generate them all at once.
iOS App Icon Size Guide: Every Size Apple Requires for App Store (2026)
A complete reference for every iOS app icon size Apple requires, including the special rules for the 1024px App Store icon — plus a free generator.
How to Create a Complete PWA Icon Set (Favicon, Apple Touch, Manifest) for Free
A step-by-step guide to generating and wiring up a complete PWA icon set — favicons, Apple touch icon, and manifest icons — for free.
App Icon Design Best Practices: Shape, Padding & Color Explained
Shape, padding, and color are the three decisions that make or break an app icon. Here is how to get each one right, with a free preview tool.
Free Favicon Generator: Create Every Favicon Size from One Image
A missing favicon makes a site look unfinished. Generate every favicon size you need from one image, free, with the code to wire it up.
GMC Tools App Icon Generator vs Icon Kitchen & MakeAppIcon: Honest Comparison
How does the free GMC Tools App Icon Generator compare to Icon Kitchen and MakeAppIcon? An honest, feature-by-feature breakdown.
Android Adaptive Icons Explained: Square, Rounded & Circle Masks
Android launchers can mask your icon into a circle, squircle, or rounded square. Here is how to design for it, with a free shape preview tool.
From Logo to App Icon: A Step-by-Step Free Workflow
Have a logo but need app icons? Here is the complete free workflow from cropping to generating every Android, iOS, and PWA icon size.
7 Common App Icon Mistakes (and How to Fix Them for Free)
From transparent App Store icons to clipped adaptive icons, here are the 7 most common app icon mistakes — and how to fix every one for free.
83 Free Browser-Only Tools — No File Uploads, Ever
83 free online tools, most of which run entirely in your browser. No file uploads for lightweight tools. Server-side tools delete files immediately after download. No storage, ever.
How to Add a Watermark to Your PDF Files
How to Add a Watermark to Your PDF Files Here's a clear, step-by-step walkthrough anyone can follow.
GMC Tools vs iLovePDF: The Privacy-First Alternative to PDF Tools
iLovePDF stores your files temporarily. GMC Tools deletes them immediately. Here's a full, honest comparison of both platforms on privacy, cost, and features.
How to Add Page Numbers to a PDF Document
How to Add Page Numbers to a PDF Document Here's a clear, step-by-step walkthrough anyone can follow.
GMC Tools vs Smallpdf — Which One Should You Use in 2026?
Smallpdf gives you 2 free tasks per day. GMC Tools gives you unlimited. Here is a full honest comparison of both tools.
GMC Tools vs TinyPNG — Which Image Compressor is Actually Better?
TinyPNG is famous but has a 5MB limit and uploads your files. GMC Tools has no limits and works in your browser. Full comparison inside.