Text Converter

What is Text Converter?

Text Converter is a free online tool that provides various text processing functions including case conversion, URL encoding/decoding, and Base64 encoding/decoding. It can easily perform text conversions frequently needed in web development, programming, and data processing tasks, and is instantly usable in your browser without installing separate programs. Converted results can be copied with one click to increase work efficiency.

How to Use

  1. Enter the text you want to convert in the left input field.
  2. Click the desired conversion method button (uppercase, lowercase, URL encoding, etc.).
  3. The converted text is immediately displayed in the right result field.
  4. Click the result field to copy the converted text to clipboard.

Use Cases

  • Programming: Batch convert variable names or constants to uppercase/lowercase
  • Web development: URL encode when including Korean or special characters in URLs
  • Data processing: Encode image or file data in Base64 for transmission
  • API testing: Decode encoded parameters to check original values
  • Document work: Unify large amounts of text to uppercase or lowercase

Notes

URL encoding is used to safely transmit special characters or Korean text that cannot be included in URLs. Base64 is used to convert binary data to text for transmission and is an encoding method, not encryption, so it's not suitable for protecting sensitive information.