Online URL Encoder & Decoder

Type or paste your text into the Input panel. Make sure Encode mode is active in the toolbar. The tool applies percent-encoding and shows the result instantly in the Output panel.

Use Copy Output or Save Output to export the encoded string. Percent-encoding converts unsafe characters like spaces into %20, making them safe for use in URLs, query strings, and web requests.

Paste a percent-encoded URL (such as those containing %20, %2F, etc.) into the Input editor. Select Decode to convert the encoded characters back to normal text. The decoded URL or text appears in the Output panel automatically.

This is particularly useful when inspecting API responses, analyzing query parameters, or debugging URLs that contain encoded special characters.

Click the Open File button to load a text file. The tool reads your file locally and applies URL encoding or decoding without uploading anything. This is ideal for processing logs, API payloads, and encoded file contents that need to be made URL-safe.

File processing happens entirely in your browser, ensuring your data remains private and secure.

• Encoding unsafe characters in URLs: Convert spaces, special characters, and non-ASCII characters before sharing or embedding URLs in web pages.
• Decoding percent-encoded API parameters: Convert encoded query strings from API requests back to readable text for debugging.
• Preparing URLs for redirects: Ensure URLs are properly encoded before using them in redirect parameters or form submissions.
• Inspecting encoded data: Decode percent-encoded data in logs, network requests, or server responses to understand what data is being transmitted.

Related tools: Base64 Encoder/Decoder, Hex Encoder/Decoder, and ASCII Encoder/Decoder.

This URL encoder and decoder runs entirely in your browser using JavaScript. Your text and files never leave your device, making it suitable for sensitive logs, API queries, and debugging data containing private information.

Note: URL encoding is not a form of encryption. It only escapes characters so they can be safely transmitted in URLs. Anyone can decode percent-encoded strings, so never rely on URL encoding for security or privacy.

Does this tool upload my text or files?

No. All URL encoding and decoding happens fully in your browser. Nothing is uploaded or stored.

What type of URL encoding does this tool use?

It uses percent-encoding, the standard method for escaping characters in URLs (for example: spaces become %20).

Can I decode URL parameters?

Yes. Paste the full query string or single parameter and choose Decode to convert percent-encoded characters back to readable text.

Can I encode or decode files?

Yes. You can open a file and the tool will encode or decode the content entirely on your device.

Is URL encoding the same as encryption?

No. URL encoding only escapes characters so they can be safely transmitted. It provides no security or secrecy.