● Encoding

URL Encoder

Encode URLs or query string parameters to percent-encoded format.

Processed locally. Your input stays in this browser.

Zero Data Sent

Encoding Scope Mode:

URL Input

1 line•63 chars•63 B

Ctrl/Cmd+Enter run

Percent-Encoded Output

https%3A%2F%2Fexample.com%2Fsearch%3Fquery%3Dhello%20world%20%26%20developer%20tools!

1 line•85 chars•85 B

Read-only output

What URL Encoder Does

Percent-encode URL components or full URL addresses for safe HTTP GET transmission.

How It Works

1.Paste your URL string or query parameter value.
2.Choose Component mode (encodes all special characters) or Full URL mode.
3.Copy the percent-encoded URL.

Common Use Cases

•Encoding query parameter values containing spaces, ampersands, or question marks.
•Constructing safe OAuth redirect URIs.

Related Developer Guides

Base64 Encoding Explained: How Binary-to-Text Encoding Works

Deep dive into Base64 encoding. Understand 6-bit binary translation, Base64 character index tables, padding with =, URL-safe Base64, and UTF-8 string encoding.

Read Guide

Frequently Asked Questions

What is the difference between Component and Full URL mode?

Component mode encodes special characters like "?", "&", "=". Full mode preserves URL structure.

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