Developer Tools — Guides & Articles

• Get an Excel Column Letter and Export It as CSV Without Uploading

  Published 2026-08-17

  Need a single Excel column as a clean CSV file? Open your local .xlsx workbook, pick the column by its letter, and download a formula-safe CSV—no upload, no…

  

• How to Create an Empty File in Any Browser with Exact Size

  Published 2026-08-17

  Create an empty file in your browser with exact byte count from 1 to 50 MiB. Pick zero, random, or repeated text content for testing.

  

• How to Generate a Directory Tree From Pasted Paths

  Published 2026-08-17

  Turn a list of pasted relative file paths into a deterministic directory tree. Strict validation, Unicode or ASCII output, and no project upload required.

  

• How to Check Different Times on Google Maps and Files

  Published 2026-08-17

  A browser diff checker solves the same compare two points problem as checking different times on Google Maps — see added and removed lines line by line.

  

• Circle Button CSS: Dial In Radius, Padding, and Color

  Published 2026-08-17

  Make a circle button in CSS by tuning border-radius, padding, font, color, and shadow in a live preview. Copy a clean class and adapt states.

  

• How to Safely Convert CSV to HTML Table in Your Browser

  Published 2026-08-16

  Paste comma-delimited CSV, choose header handling, and copy escaped HTML table markup with a React preview—no delimiter guessing or silent corruption.

  

• Create Deterministic CSS Stripes Without an API

  Published 2026-08-16

  Generate sharp, repeatable CSS stripe backgrounds with precise angle, colors, and band widths—no raster images, no API calls, just one copy-ready declaration.

  

• Get a Linear Gradient From Figma Into CSS

  Published 2026-08-15

  Read the angle, hex colors, and stop positions from a Figma linear gradient and enter them into the CSS Gradient Generator to copy validated CSS.

  

• Frosted Glass CSS: Tune Blur, Alpha, and Border

  Published 2026-08-15

  Build a frosted glass CSS effect with a backdrop-filter that shows. Tune blur, alpha, border, and radius, then copy production-ready CSS with a WebKit fallback.

  

• Clip Path Generator Cheat Sheet: Polygon Coordinates

  Published 2026-08-15

  Clip path generator cheat sheet covering polygon coordinates, the 3-20 point limit, eight preset shapes, validator rules, and a copy-ready build flow.