BtW Importer – Free Blogger/Blogspot Migration

Changelog

4.0.0

🔥 Major Update 🔥
* Added multi-step import UI with visual step indicator (Upload → Extract → Import)
* Added batch processing with 4 speed options
* Added support for modern Blogger image URLs without file extensions
* Added automatic image format detection using MIME type
* Added image format preservation (PNG, GIF, WEBP, BMP keep original format)
* Added import statistics display (Total Items, Posts, Pages)
* Added modern import controls (Start, Pause, Resume, Cancel)
* Added scrollable import log with auto-scroll
* Added pause and resume timer (elapsed time pauses when import is paused)
* Added batch delay system to improve Nginx-based server performance
* Added temporary .atom file storage in wp-content/uploads/btw-importer-temp/ (auto deleted after import)

• Fixed image URLs in posts not being replaced with local WordPress URLs
• Fixed images without file extensions not downloading
• Fixed long filename handling (100+ characters now use a short hash)
• Fixed TIFF images by auto-converting to JPG for browser compatibility

• Fixed error handling for expired Blogger image URLs

• Improved caching system to prevent re-downloading the same images

• Improved step pagination behavior during import
• Improved button state handling based on import status
• Improved default batch delay to 50ms for more stable and faster imports
• Improved overall UI and styling

• Removed import overlay completely

• Note: Batch size “Fastest” is only recommended for VPS or dedicated servers

3.0.0

• Compability test with WordPress 6.9
• Add styling on Importer and Redirect Log page
• Add legacy image URL (now support more image format and URL type)
• Add wp_safe_redirect in redirect for better security
• Security update based on WordPress 6.9 and PCP 1.7.0

2.2.0

• Fix HTML content on pages not imported

2.1.4

• Fix post type: page redirect not working properly
• Auto hide overlay on fail, error, or stopped import

2.1.3

• Security improvement to comply with wordpress standard
• Performance optimization

2.1.2

• Skip comment so the comment not imported instead imported as post

2.1.1

• Fix updater not working when your plugin folder isn’t using btw-importer. Usually when you download the plugin from github, the folder will be btw-updater-x.x

2.1.0

• Fix draft and deleted content on .atom imported as published in WordPress

2.0.0

🔥 Major Update 🔥

• Add notice before you start importing (required)
• Add warning on leaving, reloading, or closing page during import to avoid accidentally stopping the process
• Add redirect log page to check list of redirection has been made, also option to clear redirection logs
• Add 301 redirect from Blogspot permalink to new WordPress URL to keep your SEO (only for post with /YYYY/MM/slug.html format). Only works if your previous Blogspot used the same Domain Name
• Posts or Pages date now sync as date in the .atom file (e.g. your Blogspot post published on 2022/02/02, then the post in WordPress also 2022/02/02)
• Categories added or use existing category based on .atom file
• Only Blogspot/Google images downloaded, others external (saving your hosting storage, especially if you use external CDN)
• Only download original size images (avoid duplicated)

1.1.1

• Add Updater, so you won’t miss an update
• Fix embed content or iframe not imported

1.1.0

• Fix Pages imported as Posts. Should now correctly import pages as WordPress Pages

1.0.0

• Initial release
• Replaced parse_url() with wp_parse_url()
• Used wp_delete_file() instead of unlink()
• Sanitized input using wp_unslash()
• Sanitized content with wp_kses_post()