Barcodes: where and why to use them
The use of barcodes in trade, logistics, libraries, medicine and warehouses.
5 min read - 2026-03-10
Articles, guides and tips for online tools
The use of barcodes in trade, logistics, libraries, medicine and warehouses.
5 min read - 2026-03-10
Where to use the mock data generator: development, QA, demo, training and load testing.
6 min read - 2026-03-10
New NIST SP 800-63B standards for passwords: length over complexity, no rotation needed, no hints.
6 min read - 2026-03-10
Comparison of image formats 2026: WebP vs AVIF vs JPEG XL vs PNG - compression, quality, browser support.
7 min read - 2026-03-10
Amazing applications of prime numbers in cryptography, computer science, and nature.
6 min read - 2026-03-10
When to check keyword density: copywriting, SEO audit, competitor analysis.
4 min read - 2026-03-10
Real data extraction scenarios: collecting contacts, parsing logs, analyzing texts.
5 min read - 2026-03-10
Real scenarios: cooking, medicine, cars, construction and household calculations.
5 min read - 2026-03-10
When you need an energy converter: electricity calculations, nutrition, engineering and alternative energy.
5 min read - 2026-03-10
How to use the pregnancy calculator: calculating PDA, tracking development, planning maternity leave.
5 min read - 2026-03-10
How the aspect ratio calculator helps videographers, designers, and content creators in their daily work.
6 min read - 2026-03-10
When the paper size reference is useful: from office work to preparing files for printing.
4 min read - 2026-03-10
Practical tutorials and deep guides for calculators, converters, generators and developer tools.