Developer Tools— Guides & Articles

• VS Code Keyboard Shortcuts: Find and Change the Default

  Published 2026-08-15

  Confirm a VS Code shortcut's default on Windows, Linux, or macOS, then change it inside the editor's Keyboard Shortcuts panel using the exact command ID.

  

• How to Generate UUIDs in JavaScript

  Published 2026-08-15

  Generate random RFC 4122 v4 UUIDs in JavaScript with a browser tool. Pick 1–100, toggle uppercase or no-hyphen, and copy in bulk locally.

  

• How to Parse a URL in Java Without Code

  Published 2026-08-15

  Skip the java.net.URL boilerplate. URL Parser breaks any HTTP or HTTPS URL into protocol, host, path, query, and hash components in your browser.

  

• How to Convert a Unix Timestamp in SQL Queries

  Published 2026-08-15

  Practical SQL patterns for turning Unix timestamps into readable dates and back, in MySQL, PostgreSQL, and SQL Server, plus a quick browser-based checker.

  

• Decode a ULID Timestamp: Read the Milliseconds in UTC

  Published 2026-08-15

  Read the 48-bit Unix millisecond timestamp inside a 26-character ULID. See how the decoder handles case, alphabet, and overflow, all in your browser.

  

• Text to HTML Paragraphs API Alternative in the Browser

  Published 2026-08-15

  Skip the server round trip. Convert blank-line-separated plain text to escaped HTML p elements with an explicit br or space choice, locally.

  

• How to Convert SVG Image to Base64 Data URLs

  Published 2026-08-14

  Convert an SVG image to a Base64 data URL locally in your browser. Step-by-step encoding, decoding, UTF-8 detail, and tips for testing the result.

  

• How to Calculate Subnet Bits From an IP and Mask

  Published 2026-08-14

  Calculate subnet bits from any IPv4 address and CIDR prefix or subnet mask. The Subnet Calculator returns network, broadcast, host range, and usable host…

  

• How to Split Excel Sheets Side by Side Into Files

  Published 2026-08-14

  Turn every worksheet in a local .xlsx workbook into a separate data-only .xlsx file, packaged in one ZIP. No upload, no formulas, no formatting preserved.

  

• How to Check a Regex Pattern in JavaScript

  Published 2026-08-14

  Check a regex against sample text live in your browser. Type a pattern, toggle flags, and watch matches, capture groups, and named groups appear.