PACfile extension

Proxy Auto-Config File

Have trouble opening the .pac extension? Don't panic! This page explains pac files and suggests programs you may use to open pac files. You can download these programs through this page!

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What is PAC file?

PAC (Proxy Auto-Config Files) is a file format for automatically configuring a web browser connected to a proxy server. As a rule, such a file is named "proxy.pac" and located on the web server of a corporate or another network. In a plain text format, this file contains JavaScript code. This code specifies the rules for selecting a proxy server and parameters for connecting to it.

More information

Since PAC files contain basic information in plain text, they can be opened and edited with any text editor, even with a standard Windows Notepad. However, using an IDE with JavaScript syntax highlighting is better for easier editing


How to open PAC file?

Here are some universal methods of opening a file. Please, use this list of solutions.

Method 1: Correctly fix file association error

By following these steps, the user will be able to fix the pac extension association problem in an instant automatically:

Download Solution

Step 1: Click the "Download Solution" button to download the automatic tool from Appsitory.

Step 2: Now click "Start Scan" to find out all potential problems.

Step 3: Review the resulting scan and click the "Fix Items" option.

Method 2: Download apps that open the pac file

Here is a list of the presented programs that you should use to open/convert the pac file. You can choose the right program for your OS and click on it to start the download. You can also visit the developer's website.

Apps that open PAC files

Method 3: Use Universal File Viewer

The recommended use of Universal File Viewer, a tool for opening over 250 file extensions, complements the list of programs above. This utility is capable of opening your pac file. Download Universal File Viewer to your OS quickly and securely.