Blog
Guides and articles to get the most out of our tools.
No articles found.
- Developers
How to Convert Number Bases: Binary, Octal, Decimal, and Hex
Learn how to convert numbers between binary, octal, decimal, and hex by hand, with a full worked example (202) and a real chmod 755 case.
July 11, 2026 - Generators
How to Make a QR Code That Actually Scans, Every Time
Most QR codes fail to scan for three fixable reasons. Learn error correction, quiet zones, and input length so your QR code actually works. Free generator included.
July 11, 2026 - Developers
How to Test a Regular Expression Online (With Real Patterns)
Learn how to test a regular expression online: build the pattern, pick flags, check matches and capture groups before you ship it.
July 11, 2026 - Developers
What Is a Unix Timestamp? A Complete Guide With Examples
A Unix timestamp counts seconds since January 1, 1970 UTC. Learn how it works, how to spot seconds vs. milliseconds, and how to convert it.
July 11, 2026 - Developers
What Is Base64 Encoding? How It Works, With Examples
Base64 turns any data into 64 printable ASCII characters. See the bit-level trace, padding rules, and real examples like Basic Auth and JWT.
July 11, 2026 - Utilities
Why Your 1TB Drive Shows 931GB (and How to Convert GB, MB, TB Correctly)
Learn why a 1TB drive shows as 931GB in Windows or macOS, the real difference between binary and decimal storage math, and how to convert between units.
July 11, 2026 - Text
How Many Words Should You Write? Targets by Format (Essays, Posts, Meta Descriptions)
Real word and character targets for essays, tweets, meta descriptions and cover letters, plus why two word counters never agree on the same text.
July 11, 2026 - Calculators
GCD and LCM: How to Find the Greatest Common Divisor and Least Common Multiple
Learn the Euclidean algorithm and prime factorization to find GCD and LCM, with worked examples for two and three numbers.
July 10, 2026