Batch Converter

Batch convert multiple lines of text at once. Apply URL encoding, Base64, case conversion, and other transformations to multiple items simultaneously

✅ Local Processing🔄 Batch Convert

Batch Converter FAQ and Usage Guide

What conversion types are available?

The tool provides common conversion features:

  • URL Encode/Decode: Convert special characters to URL-safe format
  • Base64 Encode/Decode: Convert binary data to text format
  • Case Conversion: Convert text to uppercase or lowercase
  • Trim: Remove leading and trailing whitespace from each line
  • Remove Spaces: Remove all whitespace characters
  • Reverse: Reverse character order in each line

How does batch conversion work?

The input text is split by lines, and the selected conversion is applied to each line. For example, if you input 10 URLs, all 10 will be encoded/decoded.

Why use batch conversion?

Save time by processing multiple items at once instead of converting them one by one.

Example use cases:

  • Encode multiple URLs copied from Excel/CSV
  • Bulk decode Base64 strings
  • Convert a long list to uppercase
  • Clean whitespace from each line when copying code

How are empty lines handled?

Empty lines remain empty. This preserves the line structure of the original so you can easily compare and map results.

What happens if conversion fails?

If conversion fails for a specific line, an [Error: ...] message appears for that line. Other lines convert normally.

Example: Attempting to decode invalid Base64 string

What's the difference between URL encoding and regular encoding?

URL encoding (encodeURIComponent) converts special characters to %XX format so they can be safely used in URL query parameters or paths.

Example: Hello World!Hello%20World%21