FILE TOOL // 011

Split File Joiner

Put numbered file chunks back together in the right order, with optional size and SHA-256 checks from a split manifest.

Processed locally in your browser

Split File Joiner

Local browser processing

Drop files here Choose all parts of one split file. Parts are sorted by the number in their names before joining.

FileSizeType

No files selected.

Output filename Part order Manifest Hash check

Choose files to begin.0 files

How to use Split File Joiner

Add the requested files.
Review the options and the displayed queue.
Select Join Files, inspect the result, and download the generated Generated file.

What this file tool does

The joiner sorts selected chunks, checks them against an optional JSON manifest, and concatenates the actual bytes into one downloadable file.

Sort parts, validate available metadata, then append each byte range without changing it.

Your browser must hold the completed Blob. Very large joins may need a desktop tool with streaming disk access.

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 selected in the browser
Output	Generated file
Processing	Local browser session

Example and practical tips

Practical example

Select movie.part001 through movie.part010 and the matching manifest, then download the reconstructed file.

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 join .part files in my browser?

Select every numbered part, keep Numeric suffix selected, and run the joiner.

Does the joiner change the bytes in each chunk?

No. It concatenates each selected chunk in the resolved order.

Can I verify split parts before joining them?

Yes. Add a compatible JSON manifest containing file names, sizes, and optional SHA-256 values.

What happens when a numbered part is missing?

A manifest mismatch stops the join. Without a manifest, review the displayed order carefully.

Can I join very large files on a phone?

It may fail if the browser cannot allocate enough memory for the final Blob.

Related file tools

File Type Authenticity Checker File Integrity Manifest Creator File Integrity Manifest Verifier Folder Contents Report Generator

At a glance

Item	Support
Input	Files selected in the browser
Output	Generated file
Processing	Local browser session

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