FILE TOOL // 013

File Integrity Manifest Creator

Create a clean JSON record of file paths, sizes, timestamps, and cryptographic hashes for later verification.

Processed locally in your browser

File Integrity Manifest Creator

Local browser processing

Drop files here Choose files or a folder to create a portable manifest with paths, sizes, dates, and SHA-256 digests.

FileSizeType

No files selected.

Manifest name Hash algorithm Path style Sort entries

Choose files to begin.0 files

How to use File Integrity Manifest Creator

Add the requested files or choose a folder.
Review the options and the displayed queue.
Select Create Manifest, inspect the result, and download the generated JSON.

What this file tool does

The creator reads every selected file, computes a real Web Crypto digest, and saves a versioned integrity manifest.

Hash actual bytes, normalize relative paths, sort entries, and serialize a versioned JSON manifest.

Hashing is local but still reads every byte. Large folders can take time and may consume significant browser memory.

Supported inputs and limits

The tool works with files exposed through the browser picker. Actual limits depend on available device memory and browser support.

Item	Support
Input	Files and folders
Output	JSON
Processing	Local browser session

Example and practical tips

Practical example

Create a manifest before copying a photo archive, then verify the destination against it later.

Tips

Keep an untouched copy of important source files.
Review the result list before using the download.
For large batches, test a small sample first.

Frequently asked questions

How do I create a SHA-256 manifest for a folder?

Choose the folder, select SHA-256, and download the generated JSON manifest.

Does the manifest contain my file contents?

No. It stores paths, sizes, dates, and hashes, not the file bytes.

Can I use SHA-512 instead of SHA-256?

Yes. SHA-256, SHA-384, and SHA-512 are available.

Will changing a file name change verification?

Yes when paths are preserved, because the manifest matches entries by their recorded path.

Can a manifest restore a damaged file?

No. It can detect a mismatch but cannot reconstruct missing or changed bytes.

Related file tools

File Type Authenticity Checker File Integrity Manifest Verifier Split File Joiner Folder Contents Report Generator

At a glance

Item	Support
Input	Files and folders
Output	JSON
Processing	Local browser session

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