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URL Encoder / Decoder

Encode and decode URLs, query strings, and percent-encoded text instantly in your browser.

Input

Paste a URL, query parameter, path segment, or encoded string.

Output

Copy the encoded or decoded result.

About This Tool

The URL Encoder / Decoder converts text for safe use in URLs and decodes percent-encoded strings back into readable text. It is useful for query parameters, redirect links, API debugging, form submissions, and copied URLs that contain spaces or special characters. Decode errors are shown clearly when the input contains incomplete escape sequences.

ToolPool runs this utility in your browser, so your input stays on your device and is not uploaded to our server.

How To Use This Tool

  1. 1Paste a URL, parameter value, path segment, or encoded string.
  2. 2Click Encode URL or Decode URL depending on the task.
  3. 3Copy the output or clear the workspace.

Benefits

Fast conversion with native browser URI functions.
Friendly error handling for malformed percent encoding.
Useful for developers, marketers, and support teams working with links.

Common Use Cases

  • Encoding campaign URLs and query strings.
  • Decoding copied redirect URLs during debugging.
  • Preparing API parameter values safely.
  • Reading percent-encoded text from logs.

Workflow Tips

URL Encoder / Decoder is designed for quick browser work, but it is still worth reviewing the result before you use it in a live project, client document, public page, or production workflow. Keep an original copy of important source material, compare the output with what you expected, and repeat the task with slightly different settings when quality, formatting, or accuracy matters.

For larger workflows, pair this page with JSON Formatter, Base64 Encoder, UUID Generator, JSON Validator. Moving between related utilities can save time when you need to clean source data, prepare web assets, create supporting IDs, check calculations, or package output for another system. Internal links also make it easier to stay in one private workspace instead of jumping between several single-purpose sites.

The local processing model helps protect sensitive content because ToolPool does not need to receive your files, text, or form values to complete the task. Good privacy habits still matter after the result leaves the page: avoid pasting unnecessary secrets, check downloaded files before sharing them, and clear the workspace when you are finished on a shared computer.

FAQ

What does URL encoding do?

It replaces unsafe characters with percent-encoded sequences so text can travel safely inside a URL.

Why can decoding fail?

Decoding fails when a percent sign is not followed by a valid encoded byte, such as an incomplete %2 sequence.

Should I encode a whole URL?

Often you should encode only parameter values, not the entire URL structure. It depends on the workflow.

Is pasted URL data uploaded?

No. Encoding and decoding use browser JavaScript only.

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