About JavaScript Decoder
JavaScript Decoder is a free online tool designed to decode commonly encoded JavaScript and text representations. It can process several common encoding formats directly inside your browser.
Supported Decode Methods
- Base64 encoded JavaScript
- URI and URL encoded text
- Unicode escape sequences
- Hexadecimal escape sequences
- HTML entities
- Common JavaScript string escape sequences
How To Use
- Paste your encoded JavaScript into the input box.
- Select the appropriate decoding method.
- Click the Decode button.
- Review the decoded JavaScript in the output box.
- Use Copy Output or Download JS to save the result.
Is JavaScript Decoder Free?
Yes. The JavaScript Decoder is free to use and does not require an account or registration.
Does JavaScript Decoder Upload My Code?
The decoding operations are performed in your browser using JavaScript. The tool does not need a server-side decoding service.
Frequently Asked Questions
Can this tool decode every JavaScript obfuscator?
No. JavaScript obfuscation can use many different techniques. This tool focuses on common encoding and escaping formats rather than automatically reversing every possible obfuscation method.
Can I decode Base64 JavaScript?
Yes. Select Base64 or use Auto Detect when the input is a valid Base64 representation.
Does it work offline?
The decoding logic runs in the browser, so the actual decoding operation does not require an external decoding API.
Can I download the decoded JavaScript?
Yes. After decoding, use the Download JS button to save the output as a JavaScript file.
Is my JavaScript sent to a server?
No external decoding request is required. The decoding functionality is performed locally in your browser.