Tools / URL Encoder/Decoder

URL Encoder/Decoder

Encode or decode URLs and query parameters. Supports both component encoding and full URL encoding with instant results.

5,800 AI Tokens Used
Feb 1, 2026 Created
developertext
Categories

Encodes all special characters including / : ? # (for query parameters)

0 characters
Common Encodings
Space → %20
! → %21
# → %23
$ → %24
& → %26
' → %27
( → %28
) → %29
+ → %2B
= → %3D
? → %3F
@ → %40

All encoding and decoding happens locally in your browser using built-in JavaScript functions.

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 URL Encoder/Decoder tool with these features:

1. Mode toggle: Encode or Decode
2. Encoding type: Component (encodeURIComponent) or Full URL (encodeURI)
3. Explanation of when to use each type
4. Input textarea
5. Process button
6. Output display with monospace font
7. Copy to clipboard button
8. Swap button to use output as new input
9. Clear button
10. Error handling for invalid encoded strings
11. Character count for input/output
12. Reference section showing common URL encodings

Make it clean with orange as the accent color.
AI
Claude AI Model
#
5,800 Tokens Used
100%
AI-Generated Code Origin