Guides
Practical, no-fluff guides on compressing, converting, and working with images and QR codes — written by the people who built the tools.
How to Compress Images Without Losing Quality (2026 Guide)
What 'quality' really means, when lossy compression is invisible to the eye, and the exact settings to shrink photos by 70%+ without a visible difference.
JPEG vs PNG vs WebP: Which Image Format Should You Use?
Photos, logos, screenshots, transparency, animation — a side-by-side breakdown of the three formats that matter, with a quick decision rule for each case.
Favicon Sizes in 2026: Every File You Actually Need
favicon.ico, apple-touch-icon, Android and PWA icons — a sizes table of the favicon dimensions that matter today, plus WordPress/Wix tips and format advice.
How to Compress a JPG to 50 KB Without Ruining It
Forms that demand a JPEG under 50 KB are common. Here's how to hit the limit without turning the photo to mush — and when to use WebP instead.
How to Reduce Image File Size for Email and the Web
Why your photos are 8 MB, the real limits for Gmail and Outlook, sensible dimensions for web pages, and how to compress to an exact size like 100 KB.
QR Codes Explained: Error Correction, Sizes & Best Practices
Why some QR codes expire (and yours shouldn't), what L/M/Q/H error correction does, minimum print sizes, and how to add a logo without breaking the scan.
How to Resize an Image to Exact Pixel Dimensions
Why images stretch, how to keep the aspect ratio, when upscaling goes wrong, and a cheat sheet of good dimensions for the web and social platforms.
How to Crop a Photo Into a Circle for a Profile Picture
The transparent-background trick that makes circular avatars work everywhere, how to frame the shot, and recommended profile-picture sizes.
How to Remove Location & EXIF Data From Photos
What EXIF metadata quietly records (including your GPS location), why it's a real privacy risk, and how to remove it locally before you post.
Data URIs Explained: When to Use Base64 Images
Inlining images as Base64 can cut requests — or bloat your CSS. Here's how data URIs work and the simple rule for when to use them.
What Is HEIC and How to Convert It to JPG
The reason your iPhone photos won't open on a PC — what HEIC is, its pros and cons, and the safest way to convert it to JPG.
How to Watermark Your Photos (Without Ruining Them)
Where to place a watermark, how transparent it should be, and why tiling beats a single corner mark for protecting your images.
How to Blur Out Faces, Plates & Text in a Photo
How to properly hide a face, license plate, or private text in an image — and why a light blur isn't always enough.
How to Convert PNG to WebP (and When You Shouldn't)
WebP usually beats PNG on size while keeping transparency. When it's worth switching, and the few cases where PNG still wins.