URL Encoder & Decoder - Encode or Decode URL Strings
Encode special characters for safe URLs or decode percent-encoded strings.
Processed 100% locally in your browser. Never sent to our server.
About URL Encoder & Decoder - Encode or Decode URL Strings
Uses encodeURIComponent / decodeURIComponent to safely handle URL-reserved characters.
What Can You Use This Tool For?
Software engineers, web developers, and API designers use URL Encoder / Decoder to format production data, debug network requests, validate syntax errors, and streamline daily coding workflows without risking data leaks.
How to Encode & Decode URLs
1. Enter plain text or a web URL with query parameters.
2. Select "Encode" to make special characters URL-safe (%20, %26, etc.) or "Decode" to restore plain text.
3. Copy the processed output string.
Usage Examples
Encoding Query Parameter Strings
Input: https://numvax.com/search?q=pdf to word & ocr Output: https%3A%2F%2Fnumvax.com%2Fsearch%3Fq%3Dpdf%20to%20word%20%26%20ocr
Frequently Asked Questions
Can I use this URL Encoder / Decoder offline without an internet connection?
Yes, once the web page is loaded in your browser, all parsing and code processing execute client-side using JavaScript without requiring active server connections.
Does Numvax log, save, or transmit my code/data?
Never. Numvax operates under a strict client-side privacy architecture. All operations execute strictly inside your local browser memory.
Is there a file size or character limit for this tool?
There is no artificial limit. The tool can process payloads as large as your device memory and browser can handle.
Is this URL Encoder / Decoder free for commercial use?
Yes, all Numvax developer tools are 100% free for personal, educational, and commercial development workflows with no subscriptions or accounts required.
Why do URLs need encoding?
URLs can only contain standard ASCII characters. Spaces and symbols like &, ?, #, and = must be percent-encoded to prevent breaking HTTP requests.
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