Blog
Guides, tutorials, and comparisons on free, private, browser-based online tools.
How to Format, Validate, and Minify JSON (Free, In-Browser)
A practical guide to pretty-printing, validating, and minifying JSON without uploading anything to a server. Covers common syntax errors and how to fix them.
How to Create a Custom QR Code with Logo, Colors, and Frames
Step-by-step tutorial for generating a branded QR code with a custom logo, colors, and dot styles, plus best practices to keep it scannable.
Browser-Based vs Upload-Based Online Tools: A Privacy Comparison
Most online tools upload your files to a server. This comparison explains how client-side tools differ, how to tell them apart, and when each approach makes sense.
How to Compress Images Without Losing Quality
A practical guide to shrinking JPG and PNG file sizes while keeping visual quality. Understand lossy vs lossless compression, pick the right quality setting, and learn why browser-based compression is the most private option.
How to Take a Passport Photo at Home for Free
Skip the photo studio: take a compliant passport or ID photo with any smartphone. This tutorial covers lighting, background, posing, country-specific size specs, and the most common rejection reasons.
JPG vs PNG vs WEBP: Which Image Format Should You Use?
A clear comparison of the three dominant image formats - how each one compresses, when to use it, and how to convert between them. Includes a practical decision list for websites, photos, screenshots, and transparency.