How to Compress Images Without Losing Quality
Learn how to compress images without losing quality by resizing wisely, choosing the right format, tuning quality, and checking results.
October 9, 2026 · 5 min read
Guides
Practical guides for working with images, video, code, QR codes and passwords — with free tools that run in your browser.
How to Format and Validate JSON
Learn how to format and validate JSON, fix common syntax errors, read line and column messages, minify data, sort keys, and compare versions.
October 9, 2026 · 4 min read
Convert Video to GIF: Settings for a Smaller File
Convert video to GIF with practical frame-rate, width, and length settings. Learn when MP4 or WebM is better and how browser conversion works.
October 9, 2026 · 5 min read
How to Make a QR Code for WiFi
Learn how to make a QR code for WiFi, choose the right security fields, set print size and contrast, test scanning, and share access safely.
October 9, 2026 · 5 min read
How Strong Should a Password Be?
Learn how strong a password should be, why length and uniqueness matter most, how passphrases and managers help, and when to add two-factor authentication.
October 9, 2026 · 4 min read