What email fields are exported to CSV?

The app extracts From, To, CC, BCC, Subject, Date, and Body text from each email. Dates are standardized into a clean, consistent format. HTML is stripped to leave readable plain text. Attachments can be saved separately to a dedicated folder.

Is there a free version of MBOX to CSV?

Yes. MBOX files under 50 MB can be converted completely free with no time limits or hidden costs. For larger files, a one-time in-app purchase of $9.99 unlocks unlimited conversions — no subscriptions.

MBOX to CSV Converter for Mac

Export email archives to CSV, Excel, JSON, XML, and TXT

Turn MBOX email archives into clean, structured spreadsheets for analysis, research, or backup. Fast, reliable, and completely private — your emails never leave your Mac.

100% Offline No Data Collection Free Tier Mac App Store

Download on the App Store

Your Emails Never Leave Your Mac

Unlike online converters that require you to upload sensitive email data to their servers, MBOX to CSV processes everything locally on your device. Your files stay under your control at all times.

No Uploads

Your MBOX files and email data are never sent to any server. All conversion happens on your Mac.

No Accounts

No registration, no login, no personal information required. Just open the app and convert.

No Tracking

Zero analytics, zero telemetry, zero tracking frameworks. Your usage is entirely private.

No Servers

We don't operate any data processing servers. The app is self-contained and works completely offline.

Powerful Features for Email Data Extraction

Multiple Output Formats

Export to CSV, Excel, JSON, XML, or plain text. Open your results in any spreadsheet app, database, or analysis tool.

Advanced Data Cleaning

Automatically standardize dates, decode MIME and Base64 encoded text, strip HTML tags, and remove duplicate or irrelevant lines.

Attachment Extraction

Automatically save all email attachments to a dedicated folder — no need to open and download each one manually.

Handle Large Archives

Process massive MBOX files efficiently with optimized streaming technology that doesn't load the entire file into memory.

File Splitting

Split large output files into manageable chunks. Customize the number of records per file to fit your workflow.

Intuitive 3-Step Workflow

Select your MBOX file, choose your output format, and click Convert. No confusing options or complicated setup required.

Customizable Output

Choose your preferred date format, delimiter character, and which email fields to include in your export.

One-Time Purchase

No subscriptions, no recurring fees. Pay once and convert unlimited files forever. Files under 50 MB are always free.

Native macOS App

Built specifically for Mac with native performance and familiar design. Available on the Mac App Store — sandboxed, signed, and Apple-reviewed.

How to Convert MBOX to CSV on Mac

Open Your MBOX File

Launch the app and select your MBOX file. Drag and drop or use the file picker — it works with MBOX files from any email client.

Choose Your Format

Select your preferred output format: CSV, Excel, JSON, XML, or TXT. Configure optional settings like date format and delimiter.

Convert and Export

Click Convert and choose your destination folder. Your structured data is ready to open in Excel, Numbers, Google Sheets, or any analysis tool.

Works With Any Email Provider

Export emails from all major email clients and services. Get your MBOX file and convert it to CSV in minutes.

Gmail

Use Google Takeout to download your Gmail archive as MBOX, then convert to CSV.

Apple Mail

Select a mailbox in Apple Mail, go to Mailbox > Export Mailbox to save as MBOX.

Thunderbird

Thunderbird stores emails in MBOX format by default. Locate your profile folder to find the files.

Outlook

Export Outlook emails to MBOX using third-party tools or convert from PST format first.

Yahoo Mail

Request your data from Yahoo using their privacy dashboard. Download includes MBOX files.

Proton Mail

Use the Proton Mail Export Tool to download your emails in MBOX format for conversion.

Five Output Formats for Any Workflow

CSV

The universal format for spreadsheets. Open directly in Excel, Numbers, Google Sheets, or any data tool.

Excel

Native XLSX format with proper column formatting. Ready for analysis, pivot tables, and charts.

JSON

Structured data format ideal for developers, APIs, databases, and custom data processing pipelines.

XML

Widely used in enterprise systems, compliance workflows, and data interchange between applications.

TXT

Simple plain text extraction for quick reading, archiving, or importing into any text-based system.

What Users Say

★★★★★

"Perfect for my research work. Thousands of old emails in MBOX format extracted to CSV for Excel analysis. Clean, accurate, and fast."

D.Aarseth

★★★★★

"Time saver. Previously used clunky scripts. Now converts in seconds. Worth every penny for large files."

Baten Elfont

★★★★★

"Super easy to use. Load the MBOX, pick output format, hit convert. No confusing options."

Canice Lilas

★★★★★

"Reliable performance. Used multiple times on different files, never failed. Always accurate and quick."

Disario Eipper

★★★★☆

"Smooth attachment extraction. Attachments were neatly saved in a folder without manual digging through emails."

Esmerelda Jegar

Frequently Asked Questions

What is an MBOX file?

MBOX is a standard file format used to store collections of email messages. Email clients like Apple Mail, Thunderbird, and Gmail (via Google Takeout) export emails in the MBOX format. Each MBOX file can contain hundreds or thousands of individual emails in a single file, making it a common format for email backups, archives, and migrations. Read the full MBOX format reference →

How do I convert MBOX to CSV on Mac?

Download MBOX to CSV Data Extractor from the Mac App Store. Open the app, select your MBOX file, choose CSV (or any other format) as the output, and click Convert. Your email data will be exported to a clean, structured file ready for Excel, Numbers, or Google Sheets. The entire process takes just seconds.

Can I convert MBOX to CSV without uploading my emails?

Yes. MBOX to CSV Data Extractor is a native Mac application that processes all data locally on your device. Your email files are never uploaded to any server, making it the safest option for converting sensitive or confidential email archives. No internet connection is required. See the full comparison with online converters →

What email fields are exported?

The app extracts From, To, CC, BCC, Subject, Date, and Body text from each email message. Dates are automatically standardized into a clean, consistent format. HTML content is stripped to leave readable plain text. Encoded text (Base64, quoted-printable) is decoded automatically. Attachments can be saved separately to a dedicated folder.

How do I export my Gmail emails as MBOX?

Go to Google Takeout (takeout.google.com), deselect all products, then select only Gmail. Choose MBOX as the format and create your export. Google will prepare an archive for you to download. Once downloaded, open the MBOX file with MBOX to CSV Data Extractor to convert it to CSV, Excel, JSON, or any other supported format. Full Gmail Takeout step-by-step guide →

Is there a free version?

Yes. MBOX files smaller than 50 MB can be converted completely free with no time limits, no watermarks, and no hidden costs. For larger files, a one-time in-app purchase of $9.99 unlocks unlimited conversions for all file sizes. There are no subscriptions and no recurring fees.

What output formats are supported?

MBOX to CSV supports five output formats: CSV, Excel (XLSX), JSON, XML, and plain text (TXT). CSV and Excel are perfect for spreadsheet analysis in Excel, Numbers, or Google Sheets. JSON and XML are ideal for databases, APIs, and custom data processing. TXT provides simple plain text extraction for quick reading or archiving.

Can it handle large MBOX files?

Yes. The app uses optimized streaming technology to process large mailbox archives efficiently without loading the entire file into memory. You can also split large output files into smaller, more manageable parts. The file splitting feature lets you customize the number of records per file to fit your specific workflow.

I want to convert MBOX to PDF instead. Is there an app for that?

Yes. If you want each email rendered as a formatted PDF — preserving layout, inline images, and attachments — rather than a spreadsheet, use MBOX to PDF by the same developer. Same privacy-first, 100% offline approach.

Resources

Guides, comparisons, and reference material for working with MBOX files on Mac.

Reference What Is an MBOX File? Format definition, anatomy, variants (mboxo / mboxrd / mboxcl), and how MBOX differs from EML and PST. Guide Convert Gmail Takeout to CSV Request a Google Takeout export and turn the MBOX into a clean CSV — step-by-step. Guide Convert Thunderbird MBOX to CSV Find Thunderbird's hidden MBOX storage inside your Mac profile and convert any folder. Guide Export Apple Mail to CSV Use Apple Mail's built-in Export Mailbox and turn the .mbox package into a spreadsheet. Guide Convert MBOX to Excel Native .xlsx output with typed columns. Ready for filters, pivot tables, and formulas. Compare vs Online MBOX Converters Why uploading your mailbox to a web converter is almost always the wrong call. Compare vs SysTools MBOX Converter Mac-native one-time $9.99 app vs Windows-first enterprise migration suite — who each is for.

Ready to convert your MBOX emails?

Free for files under 50 MB. Full version just $9.99 — one-time purchase, no subscriptions.

Download on the App Store