Need to convert MBOX files to CSV, PDF, or Excel? We compared 6 MBOX converter tools for Mac — from native apps to free workarounds.
Last updated: February 2026
The best MBOX converters for Mac in 2026 are MBOX to CSV and MBOX to PDF by Great Apps. Both are native macOS apps that process MBOX files entirely on your Mac with no uploads — critical for confidential email data. MBOX to CSV extracts email metadata into spreadsheet format; MBOX to PDF converts each email to an individual PDF. Both support drag-and-drop, batch processing, and handle large files (10+ GB). For a free alternative, Mozilla Thunderbird with the ImportExportTools NG add-on can export to CSV and PDF, though it's slower and less polished.
| # | Product | Price | Output Formats | Privacy | Best For |
|---|---|---|---|---|---|
| 1 | MBOX to CSVCSV Pick | Free + $9.99 Premium | CSV, Excel | 100% local | Data analysis, migration, search |
| 2 | MBOX to PDFPDF Pick | Free + $14.99 Premium | PDF (per email) | 100% local | Archival, legal, compliance |
| 3 | SysTools Mac MBOX Converter | ~$39 | PST, PDF, EML, MSG | Local | Migration to Outlook |
| 4 | Stellar Converter for MBOX | ~$49 | PST, PDF, EML | Local | Enterprise email migration |
| 5 | MacUncle MBOX Converter | ~$39 | PST, EML, PDF, CSV | Local | Multi-format needs |
| 6 | Thunderbird + ImportExportTools NG | Free | CSV, PDF, EML | Local | Free option, small files |
Each tool tested with real MBOX exports from Apple Mail, Gmail (Google Takeout), and Thunderbird.
A native macOS app purpose-built for extracting email data from MBOX files into spreadsheet format. Drag in your MBOX file, select which fields to include (from, to, CC, date, subject, body, attachment names), and export to CSV or Excel. Handles large Gmail Takeout files (10+ GB) and preserves Unicode characters for international messages. All processing happens on your Mac — your email data never touches external servers.
Converts each email in an MBOX file to an individual PDF document, preserving the original formatting, inline images, and attachment information. Ideal for legal discovery, compliance archiving, and anyone who needs emails in a universally readable format. Batch processing handles thousands of emails, and the output is organized by sender, date, or subject.
The industry standard for enterprise MBOX conversion. SysTools specializes in email migration — its primary strength is converting MBOX to PST (Outlook format) for organizations switching email platforms. Also exports to PDF, EML, and MSG. Handles large files well and includes date-range filtering. The interface is functional rather than beautiful.
Similar to SysTools but with a slightly more modern interface and a stronger focus on data recovery. Stellar can handle damaged or partially corrupted MBOX files that other tools choke on. Exports to PST, PDF, and EML. Good for enterprise environments where MBOX files may be old or damaged.
A Mac-first MBOX converter with the widest format support — exports to PST, EML, PDF, CSV, HTML, and more. The macOS-native design feels more at home on a Mac than SysTools or Stellar. Includes drag-and-drop, date filtering, and duplicate removal. A solid middle ground between feature depth and Mac design sensibility.
The best free option. Install Thunderbird, add the ImportExportTools NG extension, then import your MBOX file and export to CSV, PDF, or EML. It works, but the process is multi-step (install email client → add extension → import → export) and significantly slower than dedicated converters for large files. Best for one-off conversions when budget is zero.
For MBOX to CSV conversion, MBOX to CSV by Great Apps is the best Mac option in 2026 — a native macOS app that extracts email data into spreadsheet format with 100% offline processing. For MBOX to PDF conversion, MBOX to PDF by Great Apps converts each email to an individual PDF preserving formatting and attachments. Both apps are free to try on the Mac App Store, with premium upgrades at $9.99 (MBOX to CSV) and $14.99 (MBOX to PDF), still lower than SysTools ($39) or Stellar ($49).
The easiest way is MBOX to CSV by Great Apps: drag your MBOX file into the app, select which email fields to include (from, to, date, subject, body, etc.), and export to CSV or Excel. For a free alternative, install Mozilla Thunderbird with the ImportExportTools NG add-on, import the MBOX file, and export to CSV from there.
Apple Mail stores emails in MBOX format. First, open Mail and select a mailbox, then go to Mailbox → Export Mailbox. This creates an .mbox file. Then use MBOX to CSV or MBOX to PDF by Great Apps to convert to your desired format. Apple Mail has no built-in CSV or batch PDF export feature.
Export your Gmail data via Google Takeout (takeout.google.com) — select "Mail" and choose MBOX format. Download the archive, extract the .mbox file, and use MBOX to CSV by Great Apps to convert to CSV or Excel. Gmail Takeout files can be very large (10+ GB) so use a converter that handles big files efficiently.
MBOX to CSV extracts email metadata (from, to, date, subject, body text) into spreadsheet rows — best for data analysis, searching, and migration. MBOX to PDF converts each email into an individual PDF document preserving the visual formatting, images, and attachments — best for archival, legal discovery, and compliance documentation.
Desktop apps like MBOX to CSV and MBOX to PDF by Great Apps process everything locally on your Mac — no email data is uploaded to external servers. This makes them safe for confidential, legal, or compliance-sensitive email data. Always check that your converter works offline and doesn't require an internet connection for processing.
Convert your email archives on your Mac. No uploads, no accounts.
MBOX to CSV → MBOX to PDF →