URL Encoder / Decoder
Encode and decode URLs, query strings, and form data with safety checks.
URL Encoder/Decoder
Encode and decode URLs instantly with percent-encoding for safe web transport, query strings, and API usage. Professional URL encoding tool for developers with real-time processing and validation. All processing happens locally in your browser.
Original Text
Encoded URL
Example Texts
About URL Encoding
URL encoding (percent-encoding) replaces special characters in URLs with a percent sign followed by hexadecimal values. Useful for query parameters, form data, and safe URL construction.
Key Features
Professional-grade tool designed for speed, security, and simplicity
Percent Encoding
Encode/decode percent-encoded characters in URLs.
Query Tools
Work with query strings and form-encoded data.
Batch Mode
Encode or decode multiple lines at once.
How it works
Apply percent-encoding rules and RFC-compliant transformations.
Paste
Provide the URL or text.
Encode/Decode
Choose action and run transformation.
Copy
Copy the sanitized output.
Use cases
API debugging
Fix malformed query strings.
Form data
Prepare form-encoded payloads for submission.
Scripting
Batch-encode strings for automation.
URL Encoding Tips
Small rules that prevent broken links and bad query parameters.
Encode Paths
Always encode reserved characters in path and query components.
Spaces vs +
Use %20 for URLs and + for application/x-www-form-urlencoded contexts.
Normalize Case
Percent-encodings are case-insensitive but normalize to lowercase for consistency.
Avoid Double-Encoding
Ensure you decode before encoding to prevent double-encoding mistakes.
Test Queries
Validate query strings after editing to ensure syntax and semantics are preserved.
Encode When In Doubt
When unsure, encode characters to avoid broken URLs in different contexts.
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