To convert JAR to 7Z, select or drop your .jar file above, check that 7Z is chosen as the output, and click Convert. Files up to 200 MB are converted right in your browser, so they never leave your device.
What is a JAR file?
JAR – Java archive. JAR is a Java application packaged as a ZIP archive, with an added manifest in its META-INF folder.
JAR Converter →What is a 7Z file?
7Z – 7-Zip archive. 7Z is the native format of the open-source 7-Zip. It packs files tighter than ZIP, mostly thanks to LZMA2 compression, and supports AES-256 encryption of both contents and file names.
7Z Converter →How to convert JAR to 7Z
- Click Select File, or drop your .jar files anywhere on this page. You can add several at once.
- Check that 7Z is chosen as the output format. On this page it is picked for you.
- Click Convert. When a file has to go to our server, the button says Upload and convert instead.
- Click Download next to each file when it's done.
JAR vs 7Z: how they compare
| JAR | 7Z | |
|---|---|---|
| Type | Archive | Archive |
| Holds | Many files and folders | Many files and folders |
| Compression | Deflate (it is a ZIP) | LZMA2 (also LZMA, PPMd, BZip2) |
| Encryption | None | AES-256, file names too |
| Created by | Sun Microsystems (Java), 1997 | Igor Pavlov (7-Zip), 1999 |
| Best for | Shipping Java programs and libraries | Small archives with strong encryption |
Good to know
- Symbolic links, hard links and special files (such as devices) are left out of the result for safety; the page tells you when it does this.
Frequently asked questions
Is converting JAR to 7Z free?
Yes. Everyone gets 25 free credits a day, with no account needed. Conversions on our server use one credit per started minute of work, so most cost a single credit. Credits reset at midnight UTC.
Are my JAR files uploaded anywhere?
Files up to 200 MB never leave your device: ConvertKitty runs 7-Zip inside your browser. Only larger files, or formats your browser cannot handle, are sent to our server, over an encrypted connection, and deleted 72 hours after the conversion. The button says "Upload and convert" whenever that happens.
How large can the JAR file be?
Files up to 200 MB are converted right in your browser. Larger files, up to 1 GB, are converted on our server.
Will the folders inside my JAR be kept?
Yes. The 7Z has the same folders and file names as the JAR. Only links and special files are left out, and the page tells you if it did that.
Can I convert several JAR files at once?
Yes. Add as many files as you like; they are converted one after another, and each one gets its own Download button.
Convert JAR to other formats
- JAR Converter
- JAR to ZIP Converter
- JAR to TAR Converter
- JAR to TAR.GZ Converter
- JAR to TAR.BZ2 Converter
- JAR to TAR.XZ Converter
- JAR to RAR Converter
Convert other files to 7Z
- Convert to 7Z
- ZIP to 7Z Converter
- RAR to 7Z Converter
- TAR.GZ to 7Z Converter
- TAR to 7Z Converter
- ISO to 7Z Converter
- GZ to 7Z Converter
- TGZ to 7Z Converter
- TAR.XZ to 7Z Converter
- CAB to 7Z Converter
- TAR.BZ2 to 7Z Converter
Just need the files inside?
Updated