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JoHex · Windows desktop application

Disk data analysis for Windows

Read, write and analyze disk data in JoHex. Examine underlying bytes alongside file and process analysis.

  1. Verify the disk source
  2. Inspect the target data
  3. Review and verify changes

Workflow

  1. Verify the disk source
  2. Inspect the target data
  3. Review and verify changes

Choose the intended disk data source, verify its identity and inspect the target range and surrounding data. Review any planned write carefully, then verify the resulting data.

Disk analysis

Read, write and analyze disk data. Review changes carefully because direct writes can affect the filesystem.

Hex editing

Read and edit bytes in hex and text views. Cached loading supports large files without loading the entire file into memory.

Before changing data

Direct disk writes can affect filesystem structures and files. Verify the target before changing data. This page describes disk analysis; it does not promise that deleted data can be recovered.

Common questions

Is disk analysis the same as deleted-file recovery?

No. Disk analysis examines and may modify disk data. Deleted-file recovery is a separate capability that analyzes residual filesystem data, with no guarantee of success.

Use JoHex for your next binary analysis task.

Review the available edition and download options before installing.