What is URL encoding?

URL encoding, or percent-encoding, converts special characters in URLs into a safe ASCII format using '%' followed by two hexadecimal digits, allowing parameters to pass through HTTP requests securely.

Does this tool upload my link data?

No, never. The conversion processes are completed locally on your client machine using JavaScript's encodeURIComponent and decodeURIComponent standard APIs.

How does Parameter Only encoding work?

It parses the URL query boundary ('?') and applies percent-encoding only to values after the '=' character, preserving the domain address and parameters names intact.

Home > Developer Tools > URL Encoder Decoder

URL Encoder & Decoder

Percent-encode special character parameters securely, decode escaped link values, and parse query parameters locally.

Use Tool Below ↓

Invalid character sequence parsed for URL decoding.

Encode Parameter Values Only (Preserves domain structure)

Input String

Transformed Result

How to Percent-Encode links

🔗

1. Paste Your Link

Enter the raw link URL or query parameters inside the left text editor textarea.

⚙️

2. Choose Method

Check "Encode Parameters Only" to parse query strings safely while keeping standard HTTP markers.

📋

3. Copy Output

Your results are computed dynamically. Click the Copy button to capture the output string.

Outstanding Encoder Features

⚡ Dual Parameter Preservations

Optionally percent-encode only specific argument values, keeping protocol addresses clean.

🔒 Secure Client Sandbox

All conversions occur locally. No URLs data logs uploaded, ensuring absolute privacy.

📋 URI Validation Metrics

Detects incorrect percent characters formatting on input strings and triggers friendly alerts.

Reserved URL Characters

Character	Name / Purpose	Percent-Encoded Format
Space	Word separators	%20
/	Directory path separation	%2F
?	Query parameters start boundary	%3F
&	Multiple parameters connector	%26
=	Value assignation	%3D

Frequently Asked Questions

Why is URL encoding necessary? +

URLs can only be sent over the internet using the ASCII character set. Special characters like spaces or brackets are replaced with a percent sign (%) and two hex digits.

What happens on Malformed Decodes? +

If the decoder encounters a percent character not followed by two valid hexadecimal digits, standard browsers trigger URI errors. Our tool detects this and displays a warning banner.

Does parameter mode handle multiple question marks? +

Yes. It identifies the first query boundary mark '?' to separate the path parameters, dividing remaining clusters by '&' and '=' correctly.

URL Encoder & Decoder

How to Percent-Encode links

Outstanding Encoder Features

Reserved URL Characters

Frequently Asked Questions

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