Tools / Base64 Encoder/Decoder

Base64 Encoder/Decoder

Encode text to Base64 or decode Base64 to text. Supports Unicode characters. Instant conversion with copy functionality.

5,500 AI Tokens Used
Jan 31, 2026 Created
developertext
Categories

Base64 encoding converts binary data to ASCII text. It's commonly used for embedding data in HTML, CSS, or JSON.

How This Tool Was Built

This tool was created entirely by AI. Here's the exact prompt used to generate it:

Prompt Used 
Create a Base64 Encoder/Decoder tool with these features:

1. Mode toggle: Encode or Decode
2. Input textarea
3. Convert button
4. Output display with monospace font
5. Copy to clipboard button
6. Swap button to use output as new input
7. Clear button
8. Support Unicode text properly using TextEncoder/TextDecoder
9. Error handling for invalid Base64 input
10. Show input/output character counts

Make it clean with orange as the accent color.
AI
Claude AI Model
#
5,500 Tokens Used
100%
AI-Generated Code Origin