Developer Tools— Guides & Articles

• HTTP Response Codes List: Search by Code, Class, or Phrase

  Published 2026-08-07

  Reference of registered HTTP status codes from the IANA registry. Filter by response class, look up by code or phrase, and consult RFC references for…

  

• How to Change a Web Icon in HTML

  Published 2026-08-07

  Change a web icon in HTML with a link rel='icon' tag in the head. Verify the markup in a sandboxed local preview before going live.

  

• How to Convert an Excel File to JSON for GST

  Published 2026-08-07

  Convert a GST worksheet into JSON in the browser without uploading it. Formulas don't run, every header must be unique, and the .xlsx stays intact.

  

• How to Highlight in Excel With Keyboard Shortcuts

  Published 2026-08-07

  Find the exact keyboard shortcuts for highlighting cells, rows, columns, and data regions in Excel for Windows, macOS, and the web.

  

• Extract and Sort an Excel Column in Alphabetical Order

  Published 2026-08-07

  Need to sort an Excel column alphabetically without altering the original file? Extract the column as a CSV, then sort it in any spreadsheet tool—no upload…

  

• CSS Stripes Generator Alternative With Hard-Edge Stops

  Published 2026-08-07

  A CSS stripes generator alternative that validates angle, two colors, and band widths and copies one repeating-linear-gradient declaration.

  

• CSS Speech Bubble Generator API Alternative: Run Locally

  Published 2026-08-07

  Swap a speech-bubble API for a local CSS Speech Bubble Generator. Validate colors, radius, tail size, and side, then copy a deterministic pseudo-element rule.

  

• Bulk Clip Path Generator: Build Many Polygon Clips

  Published 2026-08-07

  Generate and refine many CSS polygon clip-path declarations. Edit up to 20 percentage coordinates, preview at the right aspect ratio, then copy valid CSS.

  

• How to Clean HTML Text Using the Browser Parser

  Published 2026-08-06

  Clean HTML text by running it through the browser's HTML parser. Optionally strip comment nodes and review the normalized body output without execution.

  

• Hello World Examples for 12 Programming Languages

  Published 2026-08-06

  Compare Hello World syntax across JavaScript, Python, Java, C, C++, C#, Go, Rust, Ruby, PHP, Swift, and Kotlin, with filenames and runtime notes.