Chunkfy
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Local file tools

File splitter and joiner

Create numbered chunks and a SHA-256 manifest, then reassemble the file locally.

Choose file

File limit: 250 MiB

Drop a file here

or choose from your device

File limit: 250 MiB. Reassembly runs in this browser. The manifest verifies each chunk name, size, and SHA-256 before export. · Splitting runs locally in your browser. Your files are never uploaded to a server.
Task

Split settings

The result includes numbered chunks and a SHA-256 manifest. Chunks can only be reassembled.

Reassembly runs in this browser. The manifest verifies each chunk name, size, and SHA-256 before export.
Choose file

Results

Download results here after processing
Results will appear here after processing.

Results

Privacy

Splitting runs locally in your browser. Your files are never uploaded to a server.

File limit

250 MiB. Reassembly runs in this browser. The manifest verifies each chunk name, size, and SHA-256 before export.

Output

Download ZIP; The total result is too large for a ZIP download. Download files individually.

How this tool works

Create numbered chunks and a SHA-256 manifest, then reassemble the file locally. Splitting runs locally in your browser. Your files are never uploaded to a server.

Supported split methods
Custom chunk size · Checksum manifest · Local reassembly
Input limit
250 MiB
Privacy
Splitting runs locally in your browser. Your files are never uploaded to a server.

Frequently asked questions

How do I reassemble split file parts?

Choose Join parts, select the complete set of numbered parts, enter the output filename, and start processing. Keep every part together and do not rename their numeric order.

Are these standard ZIP or 7-Zip volumes?

No. This tool creates raw binary chunks with a checksum manifest. Reassemble them with this tool; they are not interchangeable with standard multi-volume archive files.

What is the maximum file size?

The configured original-file limit is 250 MiB. Choose a chunk size that keeps the number of output parts within the per-task segment limit.