Turn JAR packages into 7Z. It is converted in your browser, so the file never leaves your device.
Drop JAR files here
or choose from your computer paste with Ctrl V
from Photos or Files
Ready · other file types work too0 bytes uploaded, ever
Drop JAR (WAR, EAR) files onto the box above, or click it to choose them. ToAny reads the file's contents to detect the type, so a wrong extension does not matter.
Press Convert. There is nothing else to set. The work happens in this tab.
Save the 7Z, or download everything as one ZIP if you converted several files.
The JAR to 7Z converter is part of this page and runs inside your browser. Your packages are never sent to ToAny or to anyone else.
Nothing has to travel to a server and back, so the conversion starts the moment you press Convert, even on a slow connection.
No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.
JAR is a ZIP renamed for Java, and unpacking it does not give you readable source code. 7z usually compresses tighter than ZIP. JAR is at home in packaging Java applications and libraries; 7Z is the usual choice for the smallest archives.
A password-protected archive is refused, since its contents cannot be read without the password. A JAR is a ZIP archive with a signature. The files inside are repacked unchanged, but the new 7Z is no longer signed, so it will not install.
A JAR is a ZIP file with a manifest, holding compiled Java classes and resources; WAR and EAR files for web and enterprise applications are built the same way. Any ZIP program can open one to show its contents, even though the Java runtime is what executes it.
Opens in The Java runtime (to run it) and any ZIP tool (to look inside)
JAR converter7z is the format of the open-source 7-Zip tool. It usually compresses noticeably better than ZIP, at the cost of needing an extra app on many computers.
Opens in 7-Zip, Keka, The Unarchiver, WinRAR; not built into older Windows or macOS
7Z converter| JARJava archive | 7Z7-Zip archive | |
|---|---|---|
| Stands for | Java Archive | 7-Zip archive |
| Type | ZIP-based package | Compressed archive |
| Compression | Lossless (Deflate, as in ZIP) | Lossless (LZMA / LZMA2) |
| Introduced | 1997, by Sun Microsystems | 1999, by Igor Pavlov |
| Opens in | The Java runtime (to run it) and any ZIP tool (to look inside) | 7-Zip, Keka, The Unarchiver, WinRAR; not built into older Windows or macOS |
| Best for | Packaging Java applications and libraries | The smallest archives |
| File extension | .jar, .war, .ear | .7z |
No. The JAR to 7Z conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.
No. The files inside are repackaged unchanged.
Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.
The steps are the same everywhere because ToAny runs in the web browser: open this page in a current version of Chrome, Edge, Safari or Firefox, add the JAR file, press Convert and save the 7Z. There is nothing to install.
Yes. An archive can be up to 500 MB, unpack to at most 1 GB and hold up to 50,000 files; beyond those limits the page says so. Beyond that the limit is your device's memory, since nothing is uploaded; a computer copes with large files better than a phone.