The Toolerax Blog — Page 6
Practical guides and tips to get the most out of our tools — and the concepts behind them.
How to Write Numbers in Words
The rules for spelling out numbers in words — hyphenating tens, handling hundreds and large scales, decimals, and the correct wording for cheques and invoices.
Read articleHow to Sort a List Alphabetically
How alphabetical sorting really works, why numbers sort in the wrong order, natural sort, case sensitivity, accented letters, and how to sort a list correctly.
Read articleHow to Remove Duplicate Lines
How to find and remove duplicate lines, why near-duplicates hide from exact matching, case and whitespace traps, and how to clean an email or keyword list.
Read articleHow to Compare Two Texts
How diff tools work, why line-based comparison beats reading side by side, invisible characters that cause phantom differences, and how to compare documents and code.
Read articleHow to Reverse Text
Reverse characters, words or lines — and learn why naively reversing a string breaks emoji and accented letters, plus how upside-down text really works.
Read articleHTML Encoding Explained
Why HTML needs entities like < and &, which characters must be escaped, how escaping prevents XSS attacks, and the double-encoding trap.
Read articleHow to Change Text Case
Every text case explained: title case vs sentence case, camelCase, snake_case and kebab-case, when to use each, and the rules title case actually follows.
Read articleWhat Is a UUID?
UUIDs explained: the versions, why v4 collisions are effectively impossible, UUID vs auto-increment IDs, database performance, and when to use UUIDv7.
Read articleHow to Remove Line Breaks from Text
Why text copied from PDFs and emails is full of broken line breaks, and how to reflow it cleanly — removing breaks while keeping real paragraphs intact.
Read articleWhat Is a JWT (JSON Web Token)?
How JSON Web Tokens work: the three parts, why a JWT is signed but not encrypted, the alg:none attack, revocation problems, and when not to use one.
Read articleURL Encoding Explained
Why URLs use %20 and + for spaces, which characters must be encoded, the double-encoding trap, encodeURI vs encodeURIComponent, and how UTF-8 fits in.
Read articleWhat Is JSON and How to Format It?
JSON explained: the six data types, the strict syntax rules, why trailing commas and single quotes break it, minify vs prettify, and how to fix invalid JSON.
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