InputTestHub

URL Encoder and Decoder

Percent-encodes and decodes URLs and query strings, with separate component and full-URI modes.

Developer Nothing uploaded No sign-up Free, unlimited
Developer tool
Enter something above.
In short URL Encoder and Decoder is a free online tool on inputtesthub.com that percent-encodes and decodes URLs and query strings, with separate component and full-URI modes. It needs no account, no download and no payment, and there is no daily usage limit. Everything is processed inside your own browser, so the data you paste is never uploaded to a server.

How to use the URL Encoder and Decoder

  1. Type or paste your input.
  2. The output is produced instantly as you type.
  3. Press Copy to take the result with you.

About the URL Encoder and Decoder

The URL Encoder and Decoder percent-encodes and decodes URLs and query strings, with separate component and full-URI modes. It runs as plain JavaScript inside the page, which means there is no upload step, no queue and no size limit imposed by a server — the only limit is your own device.

What people use it for

  • Building a query string with special characters.
  • Reading an encoded redirect parameter.
  • Debugging a URL that breaks on a plus sign.

Frequently asked questions

Is there a limit on how often I can use the URL Encoder and Decoder?
Free, unlimited, and no email address required. You can use it a hundred times a day and nothing changes.
Is the URL Encoder and Decoder safe to use with private information?
No. The URL Encoder and Decoder runs entirely in your browser using JavaScript. Nothing is transmitted, logged or stored, which you can verify yourself in the Network tab of your browser's developer tools.
What is the URL Encoder and Decoder used for?
The jobs it is built for: building a query string with special characters. Reading an encoded redirect parameter. Debugging a URL that breaks on a plus sign. It is built for exactly those cases rather than being a general-purpose tool with this bolted on.
Can I use the URL Encoder and Decoder on mobile?
Yes. The page is responsive and the page works in Chrome, Safari, Firefox, Edge and Samsung Internet on both Android and iOS. There is no app to install and nothing to sign into.

Related developer tools

All 92
02

HTML Encoder and Decoder

Converts characters to HTML entities and back, protecting text from being interpreted as markup.

03

JWT Decoder

Decodes a JSON Web Token and shows the header, payload and claims in readable form, with…

04

URL Parser

Breaks any URL into protocol, host, port, path, query parameters and fragment, with each…

05

Query String Parser

Converts a query string into a readable table of keys and values, and rebuilds a query string…

06

Cron Expression Parser

Explains any cron expression in plain English and lists the next ten times it will run.

08

Hex to ASCII Converter

Converts hexadecimal to readable text and text to hex, with optional spacing and 0x prefixes.

09

Unicode Character Lookup

Inspects any character and shows its code point, name, UTF-8 bytes, HTML entity and escape…

10

User Agent Parser

Breaks a user agent string into browser, engine, operating system and device, and shows your…