Markdown to Portable Text Converter

SEO Agencies and Content Studios

Agencies managing multiple Sanity installations waste countless billable hours on content migration. When you're publishing 50+ pieces monthly across clients, manual conversion becomes a significant operational burden.

Real Impact: Agencies report losing $5,000 - 10,000 monthly in billable hours to content migration tasks.

What Our Converter Handles Automatically

Complete Markdown Support

• All Headers (H1-H6) - Maintains proper hierarchy
• Rich Text Formatting - Bold, italic, strikethrough
• Links - Both inline and reference-style
• Lists - Ordered, unordered, and nested
• Code Blocks - With language detection
• Inline Code - Preserves backticks
• Blockquotes - Proper quote formatting

Developer-Friendly Output

• Valid JSON - Passes Sanity validation every time
• Proper Keys - No duplicate key errors
• Optimized Structure - Minimal nesting for performance
• Clean Marks - Properly structured text annotations

How to Use Your Converted Content in Sanity

Method 1: Direct Studio Import

1. Copy the generated Portable Text JSON
2. In Sanity Studio, click the three-dot menu in any Portable Text field
3. Select "Paste Portable Text"
4. Paste and confirm

Method 2: API Integration

Method 3: Bulk Import (Coming Soon)

Our upcoming bulk converter will handle entire folders of Markdown files, maintaining internal links and metadata.

Common Conversion Challenges We've Solved

Code Block Language Detection

• Problem: Markdown often lacks language specifications
• Our Solution: Intelligent syntax-based language detection

Nested List Structures

• Problem: Complex nesting breaks most converters
• Our Solution: Recursive parsing maintains full hierarchy

Mixed Inline Formatting

• Problem: Combined bold, italic, and links confuse parsers
• Our Solution: Proper mark stacking preserves all formatting

GitHub Flavored Markdown

• Problem: GFM extensions aren't standard
• Our Solution: Configurable parser handles multiple flavors

What's Coming Next: Bulk Migration Tools

While our free converter handles individual documents perfectly, we're building enterprise features for power users:

Bulk Converter (Q1 2026)

• Convert entire documentation repositories
• Maintain cross-document links
• Preserve frontmatter and metadata
• Direct Sanity dataset upload
• CSV mapping for structured content

Custom Block Mapping

• Map Markdown patterns to custom Portable Text blocks
• Support for company-specific components
• Preserve special annotations
• Team formatting standards

AI Enhancement Layer

• Automatic SEO optimization during conversion
• Smart alt text generation
• Content structure validation
• Readability improvements

Why ContentWrap's Converter Is Different

Built by Migration Experts

We've migrated over 10,000 documents to Sanity, including enterprise documentation systems, multi-language content, and complex technical wikis. Every edge case is handled.

Privacy-First Design

• No server storage - Conversion happens in your browser
• No tracking - We don't analyze your content
• No sign-up - Start converting immediately
• Open core - Audit our conversion logic

Enterprise-Ready Output

• Validates against Sanity's schema requirements
• Handles special characters and Unicode
• Preserves document structure
• Maintains content relationships

Convert rich text from Google Docs, Word, Notion, or any WYSIWYG editor to Sanity-ready Portable Text JSON. No more losing formatting during content migration.