Supported Scope And Limits
Learn why every part and the app's manifest are needed, and why splitting is not compression.
Supported Scope
Free File Split Join uses PeaZip's split and join engine with a SHA-256 manifest. Choose a part size or part-count option, create new parts, then verify and rebuild a new file.
Important Limits
Keep the whole generated .parts folder: every numbered part, manifest.fsj.json and the .check integrity file where generated. This release rejoins sets created by this app, not arbitrary historical splitter formats. Splitting is not compression or encryption.
Keep A Sensible Safety Copy
Keep the original file until the joined copy is verified and usable. Splitting does not encrypt private data. Store or transfer sensitive parts using your normal secure storage and transfer method.