.APNG file extension
To open .APNG files on Windows, right-click the .APNG file and choose 'Open with'.
.APNG files are animated image files. To open them, use a compatible app like a web browser or a dedicated image viewer.
Last updated: March 19, 2026 · Reviewed by Julian Stricker
What “reviewed” means on this page
- Format fit: whether the “what is this file?” description plausibly matches common real-world use of the extension, including category, typical MIME types, and aliases.
- Opening paths: whether Windows / macOS / Linux steps read plausibly for current OS dialogs and default apps. Not every step was tested on every OS version.
- Security framing: whether risk notes match the extension class (for example executables vs plain data) and whether affiliate wording does not contradict the security section.
- Sources and further reading: external links should point to vendors, standards bodies, or other primary references where possible; not every detail is individually sourced.
- Limits: this is clarity and safety-messaging QA, not a guarantee that every statement is exhaustive or that every binary you download is harmless. Pages without “Reviewed by” have not been through this editorial pass yet.
Full methodology in the Imprint — The Imprint also states where AI is used and what that does—and does not—replace.
Open on your device
Choose your operating system for a dedicated step-by-step opening guide.
How to open .APNG files
Use these platform-specific instructions to open .APNG files safely.
Windows
- Right-click the .APNG file and choose 'Open with'.
- Select a web browser like Firefox or Chrome, or use an image viewer that supports APNG.
Mac
- Control-click the .APNG file and choose 'Open With'.
- Select a compatible browser like Safari or an image viewer that supports APNG.
Linux
- Open the file manager and right-click the .APNG file.
- Choose 'Open With' and select a browser like Firefox or an image viewer that supports APNG.
iOS
- Open the .APNG file in the Files app and tap 'Share'.
- Select a compatible app that supports APNG playback.
Android
- Open the .APNG file from the Files or Downloads app.
- Choose a browser or image viewer app that supports APNG.
Security notes
- Only open .APNG files from trusted sources to avoid malware.
- Regularly update your software to protect against vulnerabilities.
- Be cautious with APNG files that require additional permissions or scripts.
Can't open this file?
These are the most common causes and fixes when .APNG files fail to open.
Common reasons
- APNG file does not animate
- APNG file not recognized
Fix steps
- Ensure you are using a viewer or browser that supports APNG animations.
- Try opening the file in a different application or update your current app.
Recover a deleted or lost .APNG file
If the file was deleted by mistake or the drive was formatted, data recovery software may be able to get it back. Stop writing to that drive right away, because new data can overwrite what you want to recover.
Windows software that recovers deleted or lost files from PCs and external drives such as HDDs, SSDs, USB drives and memory cards, after deletion, formatting or a crash.
Wondershare RecoveritWindows and Mac software that recovers deleted or lost files from computers and external drives such as HDDs, SSDs, USB drives and SD cards.
We may earn a commission when you use affiliate links. This supports our free file extension guides.
OS-specific troubleshooting
Convert .APNG to other formats
Use conversion tools to change .APNG files into formats your software supports.
What is a .APNG file?
.APNG stands for Animated Portable Network Graphics, a file format that extends the PNG format to include animation capabilities. It maintains backward compatibility with PNG, meaning non-animated PNG viewers can still display the first frame.
Background
The APNG format was developed to add animation capabilities to the widely used PNG format without sacrificing its lossless compression and transparency features. It gained popularity due to its simplicity and compatibility with existing PNG viewers, which can display the first frame as a static image. APNG is often used in web graphics, such as animated icons and banners, because it provides a lightweight alternative to GIFs with better color depth and compression. Despite its advantages, APNG is not as universally supported as GIFs, which can lead to compatibility issues on some platforms. However, major web browsers like Firefox, Chrome, and Safari support APNG natively, making it a viable choice for web developers looking to incorporate animations.
Common MIME types: image/apng
Further reading
Authoritative resources for more details on the .APNG format.
Common .APNG issues
APNG file does not animate
The file opens but only displays a static image.
- Ensure you are using a viewer or browser that supports APNG animations.
- Try opening the file in a different application or update your current app.
APNG file not recognized
The operating system does not associate the file with any program.
- Install a compatible application or browser that supports APNG.
- Manually select the program by using 'Open with' and choosing a compatible app.
FAQ
Can I convert a file by renaming it to .APNG?
No, renaming does not convert the file format. Use a conversion tool or software that supports exporting to APNG.
Is .APNG safe to open?
Yes, if the file is from a trusted source and opened in reputable software.
Why doesn't my APNG file animate in some apps?
Not all applications support the APNG format. Use a compatible viewer or browser.
Similar file extensions
Compare related formats in the same category to find the right tool faster.