Jarscanner
Github Discord

Jar scanning that stays ready.

Jarscanner Desktop watches your Downloads folder, scans new JAR files automatically, and opens them in a focused workspace for source inspection and patching.

Get desktop access View API plans
DESKTOP WORKFLOW

From download to inspection.

The desktop client combines automatic API scanning with local tools for understanding and modifying an archive.

Automatic download scanning

Monitor a chosen folder and scan completed JAR downloads in order. Duplicate file events and incomplete browser downloads are ignored.

Local source workspace

Browse archive files, classify extracted strings, and decompile selected classes locally without launching code from the archive.

Non-destructive patching

Edit one class at a time, compile changes locally, and export a separate patched archive. Your original file is left untouched.

HOW IT WORKS

One key. Continuous protection.

  1. 1.
    Activate

    Enter the API key supplied with your plan to unlock the client.

  2. 2.
    Choose a folder

    Enable automatic scanning and select the folder Jarscanner should watch.

  3. 3.
    Download normally

    Completed JAR files are submitted for analysis and checked one at a time.

  4. 4.
    Review the result

    Receive a Windows notification and open the archive workspace for details.

SECURITY BOUNDARIES

Clear about what happens to your file.

ON YOUR COMPUTER

Inspection and editing

  • Archive browsing and class decompilation
  • Source edits and class compilation
  • Patched archive creation
  • No archive classes are executed
JARSCANNER API

Detection report

  • The opened JAR is uploaded for static analysis
  • The API returns findings and account usage
  • Each automatic scan consumes plan quota
  • Uploaded files are analyzed in memory and not retained
REQUIREMENTS

Before installing.

Operating systemWindows 10 or 11, 64-bit
Java runtimeJava 17 or newer
Jarscanner accessActive API key
ConnectionInternet access for scanning

Beta software: Jarscanner provides static indicators, not a guarantee that a file is safe. Treat suspicious files cautiously and keep backups before patching.

PRIVATE BETA

Available with a Jarscanner API plan.

Desktop builds and individual API keys are currently delivered manually through the Jarscanner Discord server.

Join Discord