Have to deal with JS (JavaScript) formatting? Then this tool is made for you! Use the super simple online form below to uglify (minify) or prettify (beautify) your data. Welcome!

Uglify JS

Simply use the form below

Uglify JS files

Click (or tap) here to select JS files
You have to select at least one file to uglify (maximum 100 files in 192MB size). Multiple files will be merged in alphabetical order.

Please wait until the upload and uglifying process completes.
CLICK OR TAP HERE to download the uglified JS file.
Please note that the uglified file is removed from our system right after the first download attempt or 15 minutes of inactivity.
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Meet JS Uglify and Prettify, a simple online tool that does exactly what it says; uglifies and prettifies JS quickly and easily. Minify your JS in a hassle-free way, or beautify it into human-readable format.

Uglify (or minify), in computer science is the process of removing all unnecessary characters from source code without changing its functionality. These unnecessary characters usually include white space characters, new line characters, comments, and sometimes block delimiters, which are used to add readability to the code but are not required for it to execute. Uglified source code is especially useful for interpreted languages deployed and transmitted on the internet (such as JavaScripts), because it reduces the amount of data that needs to be transferred.

An uglified source code may be reversed using a prettify (or beautify) process, which applies various stylistic formatting conventions to it. These formatting conventions usually adjust positioning, spacing, and similar modifications intended to make the content easier for people to view, read, and understand.

Easy to use

Begin with the "type (or paste) here..." area to enter your data, then hit the "uglify" or "prettify" buttons respectively. After a blink of any eye, the results will be shown below these buttons. Alternatively, use the "click (or tap) here..." area to select JS files from your device, then hit the corresponding button. Once the upload and processing completes, you will be notified to download the resulting uglified/prettified JS file. That's all!

Completely free

Our tool is free to use. From now you don't have to download any software for such tasks.

Safe and secure

All communications with our servers are made through secure SSL encrypted connections (https). Uploaded files are deleted from our servers immediately after the uglify or prettify process, and the resulting downloadable JS file is deleted right after the first download attempt, or 15 minutes of inactivity. We do not keep or inspect the contents of the entered data or uploaded files in any way. Read our privacy policy below for more details.
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