Developer Tools — Guides & Articles

• How to Get an Excel Column by Its Number and Export It

  Published 2026-09-20

  Find an Excel column number with COLUMN() or by letter, then extract that single column from a local .xlsx as a formula-safe CSV in your browser.

  

• How to Create an Empty File in Windows in Your Browser

  Published 2026-09-20

  Generate an exact-size empty file in Windows without CMD, PowerShell, or admin rights. Create zero, random, or repeated-text dummy files locally in your…

  

• How to Check Differential Fluid Level in Text Files

  Published 2026-09-19

  Compare two text files and read the differential fluid level — added, removed, and unchanged line counts — instantly in your browser with no upload.

  

• Camel Case to Snake Case Cheat Sheet: Six Naming Styles

  Published 2026-09-19

  Get a practical cheat sheet for converting camel case to snake case — tokenization rules, acronym handling, six naming styles, and project-safe renaming.

  

• Convert CSV to HTML Table in JavaScript: A Safe Workflow

  Published 2026-09-19

  Convert CSV to HTML table in JavaScript without XSS risk. The browser-based tool uses an RFC 4180-style parser, escapes every cell, and previews through…

  

• Bulk Text Shadow Generator: Produce Auditable Layers

  Published 2026-09-19

  Produce bulk text-shadow declarations with the CSS Text Shadow Generator — bounded ±100 px offsets, 0–100 px blur, six-digit hex colors, and a preview that…

  

• CSS Stripes Generator Cheat Sheet: Angle, Widths, Output

  Published 2026-09-18

  CSS stripes generator reference: validated angle, hex colors, and band widths produce one repeating-linear-gradient declaration with hard-edge stops.

  

• CSS Speech Bubble Generator: Command Line vs Online

  Published 2026-09-18

  Comparing a command-line script to an online CSS speech bubble generator for chat UIs and tooltips, with a step-by-step walkthrough.

  

• Bulk Neumorphism Generator: One Base Color, Many Surfaces

  Published 2026-09-18

  Run a neumorphism generator bulk workflow from one base color — paired shadows, distance, blur, and contrast reused across cards, buttons, inputs.

  

• CSS Loader Generator Cheat Sheet: Inputs, Bounds, Output

  Published 2026-09-18

  CSS Loader Generator cheat sheet: bounded inputs (size 12–160 px, duration 0.2–5 s), .loader and @keyframes output, plus accessibility and reduced-motion…