URL Encoder & Decoder

Instantly convert strings into URL-safe formats or decode percent-encoded URLs back to readable text.

Raw String / Encoded URL

Result

What is URL Encoding?

1

Percent Encoding

URL encoding, or percent-encoding, converts characters that have special meaning in a URL into a format that can be transmitted safely over the internet.

2

Safe Data Transfer

Ensures that non-ASCII characters, spaces, and reserved symbols (like ?, &, =) are handled correctly by web servers and browsers.

3

API Compatibility

Vital for passing parameters in GET requests and building dynamic query strings for RESTful APIs and web applications.

Key Features

Full UTF-8 Support

Correcty handles multi-byte characters like emojis, non-Latin scripts, and complex symbols without corruption.

Instant Conversion

Perform encoding or decoding locally in your browser with zero latency and absolute privacy for your data strings.

Smart Decoding

Automatically detects and handles malformed percent-encoding strings to prevent application crashes during decoding.

Frequently Asked Questions

Why do URLs have %20?
Spaces are not allowed in URLs. The %20 is the percent-encoded version of a space character, ensuring the URL remains a single continuous string.
Is this tool safe for sensitive data?
Yes. All processing happens within your browser's local JavaScript engine. Your input data is never sent to our servers.
Difference between encodeURI and encodeURIComponent?
encodeURI is used for full URLs (preserves /, ?, :), while encodeURIComponent is used for individual parameters (encodes almost everything). This tool uses the robust Component method.