APNG File Extension
Animated Portable Network Graphics Format
- File Type apng
- Popularity
- Application Firefox
- Category Raster Image Files
- Format Binary
What is a APNG file?
The APNG extension is related to Animated Portable Network Graphics Format and is classified in the Raster Image Files category, which contains 575 files.
APNG file support extends to various operating systems, including Windows, Mac OS and Linux. There are 5 programs available to view a APNG file, including popular tools like XnView, Firefox and Opera Browser.
Programs that support APNG files
Online Services
How to open a APNG file?
If you are having trouble opening a APNG file, it usually means the right software is not installed. Choose a program from the list that matches your operating system. Next, visit the official website of the developer, download the software, and install it on your device.
Thanks to their popularity, XnView, Firefox and Opera Browser are often the go-to programs for managing APNG files. If you want the most recent release of Firefox, head over to the Mozilla site and download the version designed to run on all platforms.
After completing the installation, APNG files should be recognized by the system and linked to Firefox.
Set Firefox as your default APNG viewer
Set default app to open files on Mac
- Right-click or Control + left-click on the desired APNG file to open a menu of available actions;
- Choose "Open in Application" and click "Other";
- In the lower section of the window, you’ll find the "Enable" menu, with "Recommended Programs" pre-selected as the default option;
- Select "All Programs" in this menu, and then search for Firefox. Check the box next to "Always open in app" to make sure it’s the default option.
Change a default app in Windows
- To get started, right-click your APNG file, then choose "Open With" and select "Choose Another Application" from the context menu;
- From the list of applications in the pop-up window, find and select Firefox as your desired application;
- Check the "Always use this app" checkbox, and then click "OK" to set your chosen app as the default for opening APNG files.
Solving Common APNG File Challenges
While APNG files can sometimes present difficulties, most problems can be resolved quickly with minor software modifications. Check the tips below to help solve them.
What Causes Firefox to Crash Frequently?
Insufficient software updates are a likely cause of Firefox crashes. Be sure to install the latest updates for Mozilla products.
A simple restart of your computer can often fix many common problems, which is why it is the recommended first step before making any adjustments to your software settings.
How can I restore a damaged APNG file?
Start a data recovery program and open the damaged APNG file. Then, choose the "Repair" option from the menu. Allow the recovery process to complete, which will automatically repair the damaged raster image files.
How can I determine if my APNG file is damaged?
Characteristics of corrupted APNG raster image files can include:
- Firefox or other programs stop responding or crash when trying to handle the file;
- Error notifications appear during file manipulation;
- When opening the file, errors occur or the inability to access its contents;
- Unexplained APNG file size inflation;
- Editing the archive in Photopea is hampered by poor overall performance;
How to edit a APNG file?
To modify APNG files, you need to install special software that makes it possible to open and edit raster image files. Online APNG editors are more restricted compared to software designed for Animated Portable Network Graphics Format.
Best APNG Editor Software in 2026
Taking the above factors into account, we have selected a list of APNG editors currently available.
| APNG Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| Photopea | Photopea | Online Services | 4.7 out of 5 (37 reviews) |
Convert files to and from APNG
If working with a APNG file is challenging, one solution is to convert it to formats like GIF, PDF or other supported formats.
After converting a APNG file, some capabilities may be limited, but you can often convert it back to the original format.