JAR Converter > Convert JAR (Java Archive) File to 7Z / RAR / TAR / TAR.BZ2 / TAR.GZ / ZIP

JAR Converter – How to Use?

A step-by-step guide to convert your JAR file into different archive formats.

2 minutes
  1. 1

    Step 1: Upload JAR File

    Click the ‘Select File’ button to upload the JAR file you want to convert.
  2. 2

    Step 2: Analyze Content

    The content of the uploaded JAR file will be automatically analyzed, including META-INF and MANIFEST.MF.
  3. 3

    Step 3: Choose Conversion Mode

    You can choose the ‘Preserve Archive’ mode to package the JAR without altering it, or select the ‘Content’ mode to extract the JAR and convert it to the target format.
  4. 4

    Step 4: Specify Target Format

    Select the format you want to convert to (7Z, RAR, TAR, TAR.BZ2, TAR.GZ, ZIP).
  5. 5

    Step 5: Start Conversion Process

    After making your selections, click the ‘Convert’ button to start the process.

What does the JAR Converter do?

The JAR format is ZIP-based and carries metadata with an optional META-INF/ directory (manifest, service definitions, versioning, security/signature, etc.).

Free Tool (Membership Required)

JAR Dönüştürücü

Java Archive dosyalarını farklı formatlara dönüştürün

JAR dosyasını sürükleyin veya tıklayın Maksimum 500MB • Java Archive

Dönüştürülüyor…

Dosya işleniyor…

Dönüştürme Tamamlandı!

dosya 0 KB
Suggest Tool

Sitene Ekle

Asagidaki kodu kopyalayip sitenize yapistirin. Arac sitenizde calisacaktir.

EMBED KODU

Kodu sitenize yapistirin. “Powered by Tools1984” linkini kaldirmayin, aksi halde arac calismaz.

Frequently Asked Questions

Is this tool free?
Yes, the JAR Converter tool is completely free.
Are my files stored on the server?
No, the files you upload are processed temporarily and then deleted.
Is there a limit on usage?
Yes, you can only upload one file at a time, but there is no daily limit.
Which formats are supported?
You can convert your JAR file to 7Z, RAR, TAR, TAR.BZ2, TAR.GZ, and ZIP formats.
Does it work on mobile?
Yes, the JAR Converter can also be used on mobile devices.

This tool operates in two clear modes:

Mode 1 > Preserve Archive (recommended, safe mode)

Purpose: To preserve the “signed jar” and “byte-level” integrity as much as possible by placing the JAR in the target container without opening it.

  1. Analyze the JAR file (is META-INF, MANIFEST.MF present?)
  2. Check if it is signed (META-INF/*.SF, .RSA/.DSA-like blocks)
  3. Select target format
  4. Place as original.jar inside the output archive

This mode is the correct default for teams sensitive to “verify jar signature”.

Mode 2 > Content (jar extract > normalize)

Purpose: Extract JAR content (jar extract / unpack jar) > repackage in target format.

  1. List content (classes, resources, META-INF)
  2. Filter (e.g. only META-INF, only .class, only resources)
  3. Extract
  4. Place in target archive with folder structure (extract files from jar)

Important warning: If the JAR is signed, repackaging in content mode practically invalidates the signature; the tool should clearly state this.  

Who is it for?

  • Developers and ops teams searching for “open jar file / extract jar”
  • Those who want to standardize artifacts in CI/CD (tar.gz, zip, 7z)
  • Agencies requiring vendor delivery format
  • Teams with security sensitivity (signed jar, jarsigner, verify jar signature)

Interface flow

  1. Upload JAR
  2. Quick analysis: META-INF, MANIFEST.MF, signature files, possibility of “executable jar” (Main-Class)
  3. Select mode: Preserve Archive / Content
  4. Select target format
  5. Settings: filter, compression level, output name
  6. Convert > download

Settings (details)

  • Signature awareness
    • “Lock content mode if signed” (optional policy)
    • “Show major warning if signed” (default)
  • Manifest viewing
    • Read MANIFEST.MF content (Main-Class, Class-Path, etc.)
  • Filtering
    • Select folder: only META-INF/, only BOOT-INF/ (spring boot jar scenarios), com/…
    • Select extension: .class, .properties, .xml
  • Compression level
    • Fast / Balanced / Maximum
  • Output name standard
    • fileName_format.ext (e.g. app_zip.zip, app_targz.tar.gz)

Error messages (reduce support costs)

  • “This file is not a JAR or has a corrupted ZIP structure (corrupted jar).”
  • “Signed JAR detected > if you repack in content mode, the signature will be invalid.”
  • “Main-Class not found > this file may not be an executable jar.”
  • “RAR output is not supported > choose ZIP or 7Z.”

FAQ

  • Is JAR the same as ZIP? JAR is ZIP-based but carries Java ecosystem-specific metadata (META-INF, MANIFEST.MF).
  • Why does java -jar work? Fields like Main-Class in the manifest determine executable jar behavior.
  • What is a signed jar? It is signed with jarsigner; validation is done through the manifest and file hashes validation.

💬 Comments (0)

Loading comments…