How to Migrate from Magento 1 to Magento 2 Using Automated Tools: A Complete Guide

You can migrate from Magento 1 to Magento 2 efficiently by using automated tools like convertm1m2 for code conversion and the official Data Migration Tool for database transfers, reducing manual effort while maintaining data integrity.

The aleron75/mageres repository curates a comprehensive collection of community-maintained automation utilities that streamline the migration process. When you migrate from Magento 1 to Magento 2 using automated tools, you eliminate repetitive manual tasks while ensuring architectural consistency between platforms.

Preparing Your Magento 1 Environment for Migration

Auditing the Codebase with convertm1m2

Before initiating migration, audit your existing Magento 1 installation to identify custom modules, third-party extensions, theme overrides, and database customizations. The convertm1m2 tool helps catalog module dependencies and structure, providing a clear inventory of what requires conversion.

According to the Magento Resources repository, this tool is essential for mapping out the scope of your migration project before writing any new code.

Setting Up the Magento 2 Skeleton

Install Magento 2 via Composer in a fresh directory, preferably matching the PHP version of your target production environment. Initialize Git repositories for both Magento 1 and Magento 2 projects to track changes and enable rollback capabilities if migration steps fail.

Converting Magento 1 Code to Magento 2

Automated Module Conversion

The convertm1m2 script automates the conversion of Magento 1 modules to Magento 2 structure, handling dependency injection definitions, XML configuration changes, and naming convention updates.

Execute the conversion with:

php convert.php path/to/m1/module path/to/m2/module

This generates a Magento 2-compatible module skeleton. You must then manually adjust for API differences and business logic variations between platforms.

Theme Migration Strategies

No fully automated theme converter exists due to the architectural differences between Magento 1's layout XML system and Magento 2's UI Component framework. Use mage2gen to generate module scaffolding, then manually port LESS/SCSS stylesheets and PHTML templates following Magento 2 theming guidelines.

Handling Third-Party Extensions

Identify replacement extensions on Packagist or the Magento Marketplace, then install via Composer. Many Magento 1 extensions lack direct Magento 2 equivalents; prefer community-maintained forks listed in the aleron75/mageres repository to ensure ongoing support.

Migrating Data from Magento 1 to Magento 2

Using the Official Data Migration Tool

The Magento Data Migration Tool provides the most reliable method for transferring database entities including catalog data, customer records, orders, and CMS content. It supports incremental migrations, allowing you to sync new data after initial transfer.

Install and configure the tool:

composer require magento/data-migration-tool:2.4.x-dev
vendor/bin/maestro migration:settings --config=etc/config.xml
vendor/bin/maestro migration:data --auto

Configuration files reside in dev/tools/migration/etc/ within your Magento 2 project structure.

Lightweight Alternatives for Selective Data

For selective migrations or smaller datasets, the sync-magento-2-migration tool provides a lightweight alternative to the official Data Migration Tool.

Clone and execute selective syncs:

git clone https://github.com/EcomDev/sync-magento-2-migration.git
php sync.php --mode=export --entity=product --source=m1
php sync.php --mode=import --entity=product --target=m2

This approach works well for migrating specific entities without transferring entire database tables.

Downgrading from Commerce to Open Source

If your source runs Magento Commerce (Enterprise Edition) but your target uses Open Source, first strip Enterprise-only modules using the magento2-downgrade-ee-ce tool.

Execute the downgrade:

git clone https://github.com/opengento/magento2-downgrade-ee-ce.git
php downgrade.php --source=ee --target=os

This ensures compatibility before running data migration tools, preventing schema conflicts between editions.

Post-Migration Validation and Deployment

Reindexing and Cache Management

After data migration, rebuild indexes and clear caches to ensure catalog and search functionality work correctly:

bin/magento indexer:reindex
bin/magento cache:clean
bin/magento cache:flush

Static Content Deployment

Deploy static assets for all themes and locales:

bin/magento setup:static-content:deploy -f

Testing Migrated Functionality

Run the full functional test suite using pestle or phpunit to verify that converted modules behave as expected. Test critical paths including checkout, customer account management, and admin operations before production deployment.

Automating the Migration Pipeline

Wrap the entire workflow in a CI/CD pipeline using GitHub Actions or GitLab CI to automate repetitive steps. Store migration configuration files—such as the Data Migration Tool's etc/config.xml and map.xml—in version control for repeatable builds.

Use the composer patch creator to maintain custom patches across upgrades, ensuring that fixes for migrated modules persist through future Magento 2 updates.

Summary

• Audit your Magento 1 installation using convertm1m2 to identify migration scope and dependencies.
• Convert custom modules automatically with convertm1m2, then manually adjust for API differences.
• Migrate data using the official Data Migration Tool for comprehensive transfers, or sync-magento-2-migration for selective entities.
• Downgrade from Commerce to Open Source using magento2-downgrade-ee-ce if necessary before data migration.
• Validate through reindexing, static content deployment, and comprehensive testing before production launch.

Frequently Asked Questions

What is the most reliable tool to migrate from Magento 1 to Magento 2?

The Magento Data Migration Tool is the most reliable solution for database migration, as it is officially maintained by Adobe and supports incremental data transfers. For code conversion, convertm1m2 provides the most comprehensive automation for transforming Magento 1 modules into Magento 2 structure.

Can I migrate custom Magento 1 modules automatically?

Yes, you can automate the structural conversion of custom modules using the convertm1m2 script, which handles dependency injection definitions, XML configuration updates, and naming convention changes. However, you must manually adjust business logic to accommodate Magento 2's architectural differences, as no tool can fully automate API-level conversions.

How do I handle data migration for large catalogs?

For large catalogs, use the official Data Migration Tool with incremental migration settings to transfer data in batches without overwhelming server resources. Alternatively, the sync-magento-2-migration tool allows selective entity migration, enabling you to transfer products, categories, and customers separately to manage memory usage and rollback specific datasets if errors occur.

Is it possible to downgrade from Magento Commerce to Open Source during migration?

Yes, you can downgrade from Magento Commerce (Enterprise Edition) to Open Source using the magento2-downgrade-ee-ce tool, which strips Enterprise-only modules and database schema elements before running the data migration. Execute this downgrade step before using the Data Migration Tool to prevent schema conflicts and ensure compatibility between your source Commerce instance and target Open Source installation.

{
  "mcpServers": {
    "instagit": {
      "command": "npx",
      "args": ["-y", "instagit@latest"]
    }
  }
}