Free online AAR to JAR converter
How to convert AAR files to JAR format and discover the best tools for a smooth conversion process.
Convert AAR to JAR online - free
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How it works
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Upload your .aar file
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How to convert aar to jar file
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Understanding AAR and JAR file formats
AAR (Android Archive) files are used in Android development to package libraries, resources, and manifest files for reuse in Android projects. They are similar to JAR files but include Android-specific components such as resources and manifest files.
JAR (Java ARchive) files are standard archives used to aggregate many Java class files and associated metadata and resources (text, images, etc.) into one file for distribution.
Why convert AAR to JAR?
Converting an AAR to a JAR is useful when you want to use the Java classes from an Android library in a standard Java project or another environment that does not support AAR files.
How to convert AAR to JAR
The AAR file is essentially a ZIP archive. To extract the Java classes, you need to:
- Rename the .aar file to .zip and extract it.
- Locate the classes.jar file inside the extracted folder.
- The classes.jar file is your converted JAR file, containing all compiled Java classes from the AAR.
Best software for AAR to JAR conversion
The process can be done manually or with tools. Here are the best options:
- 7-Zip or WinRAR: Use these to extract the AAR file and retrieve classes.jar.
- Android Studio: Import the AAR as a module, then locate the classes.jar in the build output.
- Command line (unzip): Run unzip yourfile.aar and find classes.jar.
Step-by-step example using 7-Zip
- Right-click the .aar file and choose 7-Zip → Extract Here.
- Open the extracted folder and find classes.jar.
- Rename or move classes.jar as needed for your project.
Important notes
- The resulting JAR will only contain Java classes, not Android resources or manifest files.
- Some libraries may not work outside of Android due to dependencies on Android APIs.
Note: This aar to jar conversion record is incomplete, must be verified, and may contain inaccuracies. Please vote below whether you found this information helpful or not.
AAR vs JAR: format comparison
How the AAR and JAR formats compare on the properties that matter most for this conversion.
| Property | .AAR Android Archive | .JAR Java Archive |
|---|---|---|
| Open standard | Partly open | Yes |
| Compression | Lossless | Both |
| Typical file size | Small | Medium |
| Opens in a web browser | No | No |
| Further editing | Limited | Limited |
| Metadata support | Basic | Basic |
| Plain-text readable | No | No |
| Best used for | Embedding in applications | Embedding in applications |
| Introduced | 2008 | 1996 |
| Developer | Oracle (originally Sun Microsystems) | |
| MIME type | application/java-archive | application/java-archive |
Information about file extensions and file types is provided by File-Extensions.org
Frequently asked questions
Is the AAR to JAR converter free?
Yes, converting AAR to JAR on 101convert.com is completely free. No registration, email address or installation is required. If you need a higher file size limit or want to convert more files at once, see our plans.
How large can my AAR file be?
You can upload AAR files up to 30 MB and convert up to 3 files at once in a single batch. With a paid plan the limit is up to 200 MB per file and 5 files at once, see our plans.
What happens to my uploaded files?
Files are processed automatically and deleted from our servers within a few minutes after conversion. We never view or share your files.
Do I need to install any software to convert AAR to JAR?
No. The AAR to JAR conversion runs entirely online in your browser and works on Windows, Mac, Linux, Android and iPhone.
Did the conversion fail?
In most cases, the cause is an incorrect file format. Please upload a valid AAR file for this AAR to JAR conversion. Occasionally, the issue may be on our side. We analyze recurring conversion failures and disable or fix the converter if we detect a defect.