Add Line Numbers to Text: 3 Easy Options That Actually Work
Add line numbers to text online: skip blank lines, custom start numbers, 3 separator styles, plus VS Code, Notepad++, and terminal alternatives compared.
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Regex Cheat Sheet: 4 Proven Patterns + The Complete Basics
Regex cheat sheet with tested real-world patterns: email, URL, date, phone, IP — plus quantifiers, groups, anchors, and one backtracking trap to avoid.
What Is Unix Timestamp? Easy Guide to 10 vs 13 Digits
What is Unix timestamp? A plain guide with real computed examples: 10-digit vs 13-digit epoch time, UTC gotchas, and converting timestamps to dates.
Excel to HTML Table: 5 Fixes for This Easy Conversion
Excel to HTML table without the breakage: fix merged cells, escape 5 special characters, keep leading zeros, fix dates, and make tables responsive.
How to Make a Study Timetable: 6 Proven Steps
How to make a study timetable that survives reality: 6 steps covering energy-matched scheduling, real breaks, buffer blocks, and a missed-day plan.
OCR PDF Searchable Text: 16 Languages, One Free Workflow
Get OCR PDF searchable text with this honest guide: 300 DPI scan settings, 16-language Tesseract OCR, the scan-to-Word pipeline, and real limits.
What Is SHA256 Hash? 3 Properties of This Proven Fingerprint
What is SHA256 hash used for? Learn how this 64-character fingerprint verifies downloads, how checksums work, SHA-256 vs MD5, and two honest caveats.
What Is URL Encoding? The Easy Guide to %20 and 2 Functions
What is URL encoding? A plain-English guide to %20, + vs %20, the 2 JavaScript encoding functions, and how to spot and fix double-encoding bugs fast.
How to Write Better AI Prompts: 5 Proven Parts
Master how to write better AI prompts: 4 real before/after examples (emails, summaries, cover notes, code bugs) built on one 5-part method that works.
What Is JSON Formatter? 4 Things This Easy Tool Does
Wondering what is JSON formatter software? A beginner walkthrough covering 4 jobs — format, validate, fix a trailing comma, and minify — all in your browser.