Convert JAR to APK
Free, fast JAR → APK. No watermarks, no sign-up.
How to convert JAR to APK
1. Upload JAR
Drop your JAR file into the converter above.
2. Confirm APK
Output is already set to APK. Adjust only if you need to.
3. Download
Convert and download your APK file instantly.
Format Details
JAR
JAR (Java Archive) is a ZIP-based package for Java classes, libraries, and resources. Extract or convert to ZIP, TAR, and other archive formats.
archiveAPK
APK (Android Package) is a ZIP-based archive that bundles Android app code, resources, and manifests. Extract contents or repackage to ZIP, TAR, and other archive formats.
archiveConverting JAR to APK: what actually changes
JAR to APK is one of the conversions this site performs, but the two formats are not interchangeable containers. Here is what the file keeps, what it loses, and how to get a result you can use.
What .JAR and .APK each hold
.JAR is a archive format built for storing several files as one smaller bundle, storing the files packed inside and their paths. .APK is a archive format built for storing several files as one smaller bundle, storing the files packed inside and their paths. Converting between them is a decision about which of those two jobs the result needs to do.
What changes in the conversion
Both files belong to the archive category, so this is a like-for-like repackage: the same kind of content, stored in a different container. What changes is how .APK encodes the files packed inside and their paths — not what the file is about.
When this conversion is the right one
Reach for .APK when the software, device or platform you are sending to expects it — the content is the same archive, only the packaging differs. The reverse direction works the same way, so you can always convert back from .APK to .JAR using the same tool.
Tips for a clean JAR to APK conversion
Start from the original file
Convert the .JAR you started with, not an earlier .APK output. Every extra round trip costs quality and can accumulate formatting drift.
Check the real type, not the extension
Application/java-archive becomes application/vnd.android.package-archive. If a file was renamed rather than converted, it will fail to open — rename it back to its true extension before uploading and the conversion will recognise it.
The contents travel with it
Archives are repacked, not opened. Password-protected or damaged .JAR bundles fail for the same reason in the target format, so test the source archive before converting.
Limits worth knowing
Uploads are capped per file (30 MB, or 100 MB for video) and processed temporarily — nothing is kept as a permanent copy. For huge archive files, split or compress the source first.
Frequently Asked Questions
How do I convert JAR to APK?
Upload your JAR file on Convertek, select APK as the output format, then click Convert. Your APK file will be ready to download instantly.
Is the JAR to APK converter free?
Yes. Converting JAR to APK on Convertek is completely free with no watermarks. Fair upload limits apply (typically 30 MB per file).
Is my file kept after conversion?
No. Files are processed temporarily and not stored permanently. Converted downloads are available only in your browser session.
What is the difference between JAR and APK?
JAR and APK are different file formats with distinct use cases. Converting between them lets you use your file in software or workflows that require the APK format.