The native macOS alternative to Process Explorer with advanced process monitoring capabilities
Free MCP connector for Claude to access Spacemail email
Stage
Not given
Not given
Founded
Not given
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Based in
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GB
Pricing model
Freemium
Open source
Pricing
Free version with core features; paid license $34.99 USD for lifetime updates and unlimited devices. Also available on Setapp for $14.99/year or $34.99 lifetime.
Free
Key features
Per-process CPU and memory history
Process tree visualization with XPC service linking
Real-time disk I/O and memory pressure monitoring
CPU QoS breakdown and memory footprint analysis
Menu bar dashboard for system health tracking
Multi-property and regex search
JavaScript-based advanced filters
Deep process inspection with signature and entitlements info
CSV export for historical data and reporting
Check new mail across all mailboxes with message previews
Search emails by sender, subject, words or date
Read full email messages with attachment names
Draft threaded replies and new emails saved to Drafts
Mark messages as read or unread and flag important ones
Archive, move or delete messages to Trash
Works with Claude Desktop, Claude Code, Cursor and Windsurf
Support for up to three mailboxes
Drafts saved for manual review before sending
Data stays on your computer, not collected by Norwich Website Design
What makes it different
Visualize complex process hierarchies with automatic XPC service linking
Advanced JavaScript filtering and multi-property regex search
Historical performance tracking with peak and average metrics
Retains information about finished processes for later analysis
Fully private with no data collection or remote transmission
Free and open-source under MIT licence
Email content marked as untrusted to prevent phishing attacks
Deleted messages go to Trash, not permanently deleted
Independent project not affiliated with Spaceship or Spacemail
ProcessSpy
Spacemail for Claude