Fast workflow
Designed to reduce friction with direct upload, quick processing, and one-click export.
Open Split & join files, add your file, then choose the target output and run conversion.
This tool is optimized for archive handling and works best with * as inputs.
When processing completes, download the result in * and verify quality before sharing.
Split & join files is a privacy-first utility for fast archive handling. It helps you move from * to * with consistent output quality.
Designed to reduce friction with direct upload, quick processing, and one-click export.
Files are handled in an isolated processing flow with minimal retention and clear user controls.
Outputs are tuned for real use cases across *.
A predictable sequence keeps conversion stable across devices and file sizes.
Split & join files accepts * and exports *.
The pipeline is designed for privacy-first processing with clear user control over inputs and outputs.
Use high-quality source files, choose the closest matching target format, and avoid repeated reconversion cycles.
Split & join files follows a deterministic conversion flow so results are repeatable and easier to troubleshoot when a file behaves unexpectedly.
Split large files into smaller parts for transfer, or reassemble split parts back into one file. 100% local.
All processing is done entirely in your browser using the File API and Blob slicing. No data is ever uploaded to any server. Your files stay completely private on your local machine.
Splits any file into equal-sized chunks for email attachments, cloud upload limits, or USB transfer. Parts are named with sequential numbering (e.g., file.part001of005.ext) so they sort correctly. Reassemble parts automatically by dropping all parts and clicking Join.
When you need to send a large file through a service with size limits (email, Discord, cloud storage), transfer files across systems, or reassemble previously split files.
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