Free Online JavaScript Viewer
Format, test, and view your JavaScript code instantly in your browser.
About JavaScript Viewer
The JavaScript Viewer is a free online utility that lets you instantly view and analyze your raw JS code with rich syntax highlighting. It makes variables, functions, strings, and comments easy to distinguish. If you are working with APIs, you might also find our JSON Viewer highly useful.
Why Use a JavaScript Viewer?
- Readability: Instantly highlights syntax to make cluttered or complex scripts easier to read.
- Debugging: Easily identify strings, comments, and keywords to track down syntax issues.
- Efficiency: Review scripts quickly and securely directly in your browser.
How to use?
- Paste or type your unformatted JavaScript into the Input JS Code box.
- Click the View JS button.
- The highlighted code will appear in the Formatted Output box.
- Use the Copy JS button to easily extract the result.
Key Features
- Instant Highlighting: Colors your JS syntax instantly without page reloads.
- Privacy Protected: All processing is done in your browser; no data is sent to any server.
- Real-Time Updates: Watch your code highlight automatically as you type.
Frequently Asked Questions
Is this tool free to use?
Yes, this JavaScript Viewer is completely free for both personal and commercial use.
Does this tool store my code?
No. The tool runs entirely on the client-side (in your browser), so your JS code is never stored or transmitted.
Why use a JavaScript Viewer?
Raw, monochrome code can be incredibly difficult to read. A JavaScript Viewer automatically applies standard syntax highlighting so humans can easily parse and understand the logic.
Need more coding utilities? Check out our Developer Tools.