Web App
NEWSplit Gmail MBOX Files By Date, Sender Or Label
Divide an exported Gmail MBOX file into smaller MBOX files by date, sender, label or selected size limit. Save an index showing which messages were placed in each output file.
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Video demo
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Divide an exported Gmail MBOX file into smaller MBOX files by date, sender, label or selected size limit. This silent webapp demonstration shows Quick Help, Load Samples, Split MBOX Files, completed result files and Download All As ZIP.
Description
What is this software?
Divide an exported Gmail MBOX file into smaller MBOX files by date, sender, label or selected size limit. Save an index showing which messages were placed in each output file.
Features
- Divide an exported Gmail MBOX file into smaller MBOX files by date, sender, label or selected size limit. Save an index showing which messages were placed in each output file.
- Result files can include mailboxes/, mbox-index.csv. Optional files depend on the selected settings and supported input.
- Choose Split By, Maximum MiB before processing.
Divide an exported Gmail MBOX file into smaller MBOX files by date, sender, label or selected size limit. Save an index showing which messages were placed in each output file.
Features
- Divide an exported Gmail MBOX file into smaller MBOX files by date, sender, label or selected size limit. Save an index showing which messages were placed in each output file.
- Result files can include mailboxes/, mbox-index.csv. Optional files depend on the selected settings and supported input.
- Choose Split By, Maximum MiB before processing.
Your files
Processing takes place in your browser, without uploading your files for processing. Results are saved to your device.
The app's ? Help contains instructions, supported formats and browser limits.

