TrustVare OLM to Office 365 Converter vs TrustVare OST to MSG Converter

Converts OST files to MSG format, not OLM to Office 365.

Side by side

What it is: TrustVare OLM to Office 365 Converter:Converts Mac Outlook OLM files to Office 365 accounts while preserving structure and attachments.; TrustVare OST to MSG Converter:Converts Outlook OST files to MSG format on Windows, preserving email structure and attachments.
Best for: TrustVare OLM to Office 365 Converter:Bulk OLM-to-Office365 migration; TrustVare OST to MSG Converter:Batch OST-to-MSG conversion
Who it’s for: TrustVare OLM to Office 365 Converter:IT teams, businesses and individuals migrating from Mac Outlook to Office 365.; TrustVare OST to MSG Converter:IT admins, Outlook users, and businesses needing offline OST migration.
Pricing: TrustVare OLM to Office 365 Converter:Freemium; TrustVare OST to MSG Converter:Freemium
Works with: TrustVare OLM to Office 365 Converter:Office 365; TrustVare OST to MSG Converter:—
DevHunt upvotes: TrustVare OLM to Office 365 Converter:1; TrustVare OST to MSG Converter:0
Launched on DevHunt: TrustVare OLM to Office 365 Converter:Jun 2025; TrustVare OST to MSG Converter:Jan 2026

Full mailbox export. Transfers emails, contacts, calendars and attachments from OLM to Office 365.
Preserves formatting. Keeps original folder structure, metadata and formatting intact.
Bulk conversion. Exports unlimited OLM files in one operation.
Automatic Office 365 login. Connects to the target account after entering credentials.
Preview pane & log report. Shows data preview and generates a log of the exported items.
No Outlook required. Runs as a standalone Windows app without installing Outlook.

Unlimited batch conversion. Convert single or multiple OST files to MSG in one go without size limits.
Data recovery. Repairs inaccessible or corrupted OST files before conversion.
Filter modes. File Mode and Folder Mode let you select specific emails or folders to export.
Preview pane. Shows a preview of uploaded OST content for selective conversion.
Log report generation. Automatically creates a log file of each conversion session.
No Outlook required. Runs independently without needing Outlook installed.

Based on each tool's website and DevHunt data. Details may change; check the official sites.