URL Encoder & Decoder
Encode query parameters and URLs into standard percent-encoded format (RFC 3986) or decode encoded URLs back to human-readable strings.
Encode special characters into percent-encoded URL formats and decode safe web links. Fast browser-based URI parsing tool with zero tracking or limits.
Key Features
Explore performance capabilities engineered for in-browser execution.
How to Use This Tool
Follow these 3 simple steps to use URL Encoder / Decoder directly in your browser.
Paste the URL or text string you want to encode, or paste a percent-encoded string you want to decode.
Select 'Encode' to make your string URL-safe, or 'Decode' to convert it back to plain text.
Copy the encoded or decoded result with a single click.
RFC 3986 URL Percent-Encoding and Query Parameter Sanitization
Uniform Resource Identifiers (URIs) only permit a restricted set of ASCII characters; spaces, symbols, and non-Latin characters must be converted into percent-encoded triplets (like %20 for spaces or %26 for &) to prevent broken links and corrupted query strings. This tool provides instant, bidirectional RFC 3986 compliance.
Encode search queries, filter values, and callback redirect URLs before appending them to HTTP GET request paths.
Decode encoded Google Analytics and advertising UTM parameters from incoming traffic links to audit campaign source attribution.
Use "Encode Component" for query string parameter values (like search keywords) to safely encode ampersands and question marks.
Frequently Asked Questions
Clear, verified answers to common technical and workflow questions about URL Encoder / Decoder.
What is URL encoding?
URL encoding (percent-encoding) replaces unsafe ASCII characters with a '%' followed by two hexadecimal digits. For example, a space becomes %20. This ensures URLs are transmitted correctly over the internet.
What is the difference between encodeURI and encodeURIComponent?
encodeURI encodes a complete URL and preserves characters like '/', '?', '&', and '#'. encodeURIComponent encodes individual URL parameters and escapes those characters too, making it suitable for encoding values inside query strings.
Related Guides & Tutorials
In-depth technical guides, step-by-step walkthroughs, and best practices for URL Encoder / Decoder.
URLs are limited to a strict ASCII character set. Special characters — spaces, accents, ampersands, slashes — mu...
HTML entity encoding converts special characters (<, >, &, ", ') to safe representations (< > & "...
Base64 encoding converts binary data into a text-safe character set (A-Z, a-z, 0-9, +, /) that can be embedded i...
Related Tools
Complementary productivity utilities that pair with URL Encoder / Decoder for comprehensive file management.