# URL Encoder Decoder Offline

> Encode and decode URL components directly in Firefox. All text is processed locally and is never uploaded, stored, or transmitted.

Canonical page: [https://chrome-stats.com/d/url-encoder-decoder-offline](https://chrome-stats.com/d/url-encoder-decoder-offline)

## Overview

- **ID:** `url-encoder-decoder-offline`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** v8
- **Category:** web-development
- **Daily users:** 1
- **Version:** 1.0.0
- **Last updated:** 2026-07-28
- **First published:** 2026-07-25
- **Size:** 17 KB
- **Data as of:** 2026-09-06
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/url-encoder-decoder-offline/)

## Description

<strong>URL Encoder Decoder Offline</strong> is a lightweight developer and productivity utility for encoding and decoding URL components directly from the Firefox toolbar.

<ul><li>Encode text using standard URL percent-encoding.</li><li>Decode percent-encoded URL components.</li><li>Convert spaces, symbols, Unicode characters, and reserved characters safely.</li><li>Copy the processed result to the clipboard.</li><li>Clear both input and output with one click.</li><li>Work completely offline.</li><li>Require no registration or account.</li></ul>
<ol><li>Click the URL Encoder Decoder Offline icon on the Firefox toolbar.</li><li>Type or paste text into the input field.</li><li>Click <strong>Encode</strong> to create a percent-encoded URL component.</li><li>Click <strong>Decode</strong> to restore encoded text.</li><li>Click <strong>Copy Result</strong> to copy the output.</li></ol>

The extension uses the browser's built-in URL component encoding and decoding functionality. It is suitable for query values, path segments, search terms, and parameter values.

If the entered text contains an invalid percent-encoded sequence, the extension displays an error instead of changing the content.

URL Encoder Decoder Offline does not collect, store, log, transmit, sell, or share entered text or processed results.

The extension processes only content that the user manually enters or pastes into the popup. It does not inspect open tabs, website content, browsing history, cookies, passwords, network traffic, or account information.

The extension requests no website permissions and uses no content scripts, background scripts, remote code, analytics services, advertising services, or external APIs.

Clipboard access occurs only when the user clicks the copy button.

All encoding and decoding operations run locally inside Firefox. An Internet connection is not required.

## Rankings

- #96,215 — Overall
- #61 — offline
- #128 — component

## Safety

- **Risk impact:** Very low risk impact
- **Risk likelihood:** High risk likelihood

### Analysis details

- This permission has no access or impact on the user's system or data, thus carrying no risk.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/url-encoder-decoder-offline)