Help Center

Learn the basics and get up and running in minutes.

• What is DiffChecker Pro?
• Your first comparison
• Understanding the diff view
• Keyboard shortcuts
• Supported file formats

Deep dives into each comparison tool and its options.

• Text diff: side-by-side vs unified view
• JSON diff: structural vs text mode
• Image diff: overlay and highlight modes
• PDF comparison: page navigation
• Folder diff: recursive comparison

Format-specific guides, gotchas, and best practices.

• Comparing YAML files
• XML comparison with namespace handling
• CSV diff: handling different delimiters
• Excel file comparison
• Markdown diff rendering

Manage your subscription, payment, and team members.

• Free vs Pro vs Team: what's included
• Upgrading your plan
• Cancelling your subscription
• Invoices and receipts
• Managing team members

Use DiffChecker Pro programmatically in your workflow.

• API authentication and API keys
• Rate limits and quotas
• Webhook configuration
• GitHub Actions integration