Importador de Blogger


El plugin Blogger Importer importa los datos de tu sitio de Google Blogger a una instalación de

Elementos importados

  • Categorías
  • Entradas (publicadas, programas y borradores)
  • Comentarios (no spam)
  • Imágenes

Elementos no importados

  • Páginas
  • Widgets/Widget Data
  • Plantillas/Tema
  • Comentarios y avatars del autor



A continuación se hace referencia a la implementación de las imágenes y enlaces

  • (not working)

Problemas conocidos

  • Some users have reported that their IFrames are stripped out of the post content.
  • Requests for better performance of larger transfers and tranfers of images
  • Review of behavior when it re-imports, partiularly are the counts correct
  • Review using get_posts or get_comments with the appropriate parameters to get the counts and exists instead of using SQL
  • Incorrect notice, PHP Notice: The data could not be converted to UTF-8. You MUST have either the iconv or mbstring extension installed. This occurs even when Iconv is installed, could be related to Blogger reporting 0 comments
  • Cuando el importador se está ejecutando no es posible detenerlo usando el botón de parada
  • El recuento de comentarios de Blogger incluye los que no están enlazados a una entrada. Por ejemplo, si la entrada ha sido borrada.

Filtros y acciones

Estas acciones y filtros han sido añadidos para que puedas ampliar la funcionalidad del importador, sin necesidad de modificar el código.

Acción – import_start – Esta acción se ejecuta cuando la importación comienza el procesamiento de los registros para un nuevo blog

Acción – import_done – Esta acción se ejecuta cuando la importación termina de procesar los registros para un blog.

Filtro – blogger_importer_congrats – Aprobada la lista de opciones que se muestran al usuario cuando el blog es completa, las opciones pueden ser añadidos o eliminados.



  1. Sube la carpeta de blogger-importer al directorio wp-content/plugins
  2. Activa el plugin a través del menú «Plugins» en WordPress

Requisitos previos

The importer connects your server to the blogger server to copy across the posts. For this to work you need to have connectivity from the server to the internet and also have at least one of the remote access protocols enabled, e.g. curl, streams or fsockopen. You can use the Core Control plugin to test if these are working correctly. The importer connects to Google over a secure connection so OpenSSL needs to be enabled on your server.
The importer uses the SimplePie classes to read and process the data from blogger so you will need the php-xml module installed on your webserver.


It is strongly recommended that you disable all other plugins and caching during the import.

This will ensure that the information transfers across as smoothly as possible and that posts and comments are correctly transferrred.

Cómo utilizarlo

  1. En tu cuenta Blogger, visita la página Configuración->Otra página y localiza la opción «Exportar blog». Esto descargará un archivo XML que contiene tus entradas y comentarios.
  2. En WordPress, el plugin Blogger Importer está disponible en el menú «Herramientas > Importar».
  3. Subir el archivo XML a WordPress.
  4. Las entradas serán leídas y tendrás la opción de asignar los autores de las entradas de forma apropiada.
  5. Permitir la importación para finalizar.
  6. Si la importación falla durante el proceso, simplemente vuelve a intentarlo. Las entradas que ya estén importadas se borrarán y no se duplicarán.


¿Cómo hago una re-importación?

Simplemente sube de nuevo el archivo XML. Las entradas que ya estén publicadas se borrarán y no se duplicarán.

Once I’ve imported the posts do I need to keep the plugin?

No, puedes borrar el plugin una vez hayas completado tu migración.

¿Cómo sé que publicaciones han sido importadas?

Each of the posts loaded is tagged with a meta tags indicating where the posts were loaded from. The permalink will be set to the visible URL if the post was published or the internal ID if it was still a draft or scheduled post

  • blogger_author
  • blogger_blog
  • blogger_permalink

Después de importar hay muchas categorías.

Blogger does not distinguish between tags and categories so you will likely want to review what was imported and then use the categories to tags converter

¿Qué pasa con las páginas?

This importer does not handle blogger pages, you will need to manually transfer them.

¿Qué pasa con las imágenes?

This version of the importer imports these too, but you can disable this via a setting in the blogger-importer.php file. Tracking images of size 1×1 are not processed. If you with to specifically exclude other images you could code something for the image_filter function.

¿De que tamaño son las imágenes?

The importer will attempt to download the a large version of the file if one is available. This is controlled by the setting «LARGE_IMAGE_SIZE» and defaults to a width of 1024. The display size of the images is the «medium» size of images as defined on WordPress. You can change this in advance if you want to show a different size.

¿Cómo sé que imágenes están paradas?

If you hover over the progress bar for images it will tell you how many images are skipped. To see the filenames of these images you will need to enable WordPress debugging to log to file. See

¿Qué pasa con los futuros posts?

The scheduled posts will be transferred and will be published as specified. However, Blogger and WordPress handle drafts differently, WordPress does not support dates on draft posts so you will need to use a plugin if you wish to plan your writing schedule.

Are the permalinks the same?

No, WordPress and Blogger handle the permalinks differently. However, it is possible to use the redirection plugin or your .htaccess file to map the old URLs across to the new URLs.

My posts and comments moved across but some things are stripped out

The importer uses the SimplePie classes to process the data, these in turn use a Simplepie_Sanitize class to remove potentially malicious code from the source data. If the php-xml module is not installed then this may result in your entire comment text being stripped out and the error «PHP Warning: DOMDocument not found, unable to use sanitizer» to appear in your logs.

Los comentarios no tienen avatars

This is a known limitation of the data that is provided from Blogger. The WordPress system uses Gravatar to provide the images for the comment avatars. This relies the email of the person making the comment. Blogger does not provide the email address in the data feed so WordPress does not display the correct images. You can manually update or script change to the comment email addresses to work around this issue.

It does not seem to be processing the images

The most common reasons for this are lack of memory and timeouts, these should appear in your error log. Also check you’ve not run out of disk space on your server. Because WordPress stores the files in multiple resolutions one image might take up as much as 250kb spread across 5 files of different sizes.

How do I make the images bigger or smaller? / My images are fuzzy

The importer will attempt to download a large version of images but it displays them on the blog at the medium size. If you go into your settings->media options then you can display a different size «medium» image by default. You can’t make this bigger than the file that has been downloaded which is where the next setting comes in.

The default size for the large images is 1024, you can change this to an even larger size by changing the following line in the blogger-import.php file.

constante LARGE_IMAGE_SIZE= ‘1024’;

El archivo descargado nunca va a ser mayor que el tamaño del archivo original, por lo tanto si el archivo era de 800×600 al principio nunca tendrá un tamaño superior a ese.

If your origional blog has hardcoded width and height values that are larger than the medium size settings then that might result in your images becoming fuzzy.

I’ve run out of disk space processing the images

The importer is designed to download the high resolution images where they are available. You can either disable the downloading of images or you can change the constant LARGE_IMAGE_SIZE string in the blogger-importer.php file to swap the links with a smaller image.


25 de abril de 2024
It works but the blog posts don’t come as it should so I will need to fix it manually. Wondering if it’s worth it. I am going to try to add completely manually to see what takes less time. It’s disappointing.
4 de diciembre de 2022
I am migrating from Blogger to Wordpress, and keeping the host name the same (I owned the domain blogger was hosting on, so I can just subtly switch to WP). The posts came over well, but the exported Blogger data included the permalink URL and this importer dropped that, so the URLs will change although I can keep the host name of the URL the same. I’m looking for any tool that can import with the permalinks included.
14 de junio de 2020
I managed to use this to migrate a tiny old blog from Blogger to WordPress in June 2020 successfully-ish. All of the published and draft posts from Blogger are now in WordPress. All images in the posts were uploaded to the WordPress Media Library; the img tags in the posts were not updated to point to the new Media Library uploads. All comments remained intact — the author replacement only affected posts, not comment responses. All Blogger labels were turned into WordPress categories.
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Colaboradores y desarrolladores

«Importador de Blogger» es un software de código abierto. Las siguientes personas han colaborado con este plugin.


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Registro de cambios


  • Add support for WordPress 6.2


  • Add support for WordPress 6.1


  • Complete rewrite to use XML files instead.


  • Fixed issue with the authors form not showing a the list of authors for a blog
  • Simplified check for duplicate comments
  • Code simplified for get_authors and get_author_form
  • Fixed issue with wpdb prepare and integer keys by switching to a sub select query
  • Make comment handling more robust
  • Simplified functions to reduce messages in the log


  • Fixed issue with drafts not being imported in the right state
  • Added extra error handling for get_oauth_link to stop blank tokens being sent to the form
  • Restructured code to keep similar steps in single function and to allow testing of components to be done
  • Re-incorporated the «congrats» function and provided a sensible list of what to do next
  • Add a geo_public flag to posts with geotags
  • Dropped _normalize_tag after confirming that it’s handled by SimplePie
  • Added image handling
  • Added setting author on images
  • Added error handling in get_oauth_link() as suggested by daniel_henrique ref
  • Added a check for OpenSSL as suggested by digitalsensus
  • Fixed issue with SimplePie santizer not getting set in WordPress 3.5
  • Added filter for the congrats function ‘blogger_importer_congrats’ so other plugins can add in new options
  • Converted manual HTML table to WP_LIST_TABLE
  • Moved inline Javascript to separate file to aid debugging and testing
  • Wrapped data sent to Javascript in I18n functions.
  • Fixed timeout error in the Javascript, timeouts were not being used.
  • Supress post revisions when importing so that DB does not grow
  • Added processing of internal links
  • Added uninstall.php to remove options on uninstall
  • Added a timeout value to all of the wp_remote_get calls as people have reported timeout issues
  • Added a setting to control the large images downloaded from blogger.
  • Stopped logging all the post and comment IDs in arrays and storing in option this improved the importing of very large blogs
  • Fixed issue with comment_author_IP notice
  • Code restructuring to use classes for blog objects
  • Changed AJAX calls to use technique described here
  • Added AdminURL to the greet function rather than hardcoded path
  • Defaulted to turn off post pingbacks
  • Fix to stop it counting pingbacks, issue reported by realdoublebee
  • Retrofitted Security enhancement from 0.6, nonce added to form buttons on main screen
  • Security enhancement, nonce added to form button on authors screen
  • Updated POT file
  • Greek Translation from Stergatou Eleni


  • Security enhancement, nonce added to form button on main screen


  • Merged in fix by SergeyBiryukov
  • Merged in rmccue change to get_total_results to also use SimplePie from
  • Reviewed in rmccue’s changes in issues with date handling functions so skipped those
  • Moved SimplePie functions in new class WP_SimplePie_Blog_Item incorporating get_draft_status and get_updated and convert date
  • Tested comments from source blog GMT-8, destination London (currently GMT-1), comment dates transferred correctly.
  • Fixed typo in oauth_get
  • Added screen_icon() to all pages
  • Added GeoTags as per spec on
  • Change by Otto42, rmccue to use Simplepie XML processing rather than Atomparser, ref:
    this also fixes
  • Change by Otto42 to use OAuth rather than AuthSub authentication, should make authentication more reliable
  • Fix by Andy from Workshopshed to load comments and nested comments correctly
  • Fix by Andy from Workshopshed to correctly pass the blogger start-index and max-results parameters to oAuth functions and to process more than one batch
  • Fix by Andy from Workshopshed error about incorrect enqueuing of scripts also changed styles to work the same
  • Change by Andy from Workshopshed testing in debug mode and wrapped ajax return into a function to suppress debug messages
  • Fix by Andy from Workshopshed notices for undefined variables.
  • Change by Andy from Workshopshed Added tooltip to results table to show numbers of posts and comments skipped (duplicates / missing key)
  • Fix by Andy from Workshopshed incorrectly checking for duplicates based on only the date and username, this gave false positives when large numbers of comments, particularly anonymous ones.


  • Fix for tracking images being added by Blogger to non-authenticated feeds


  • Bugfix for 403 Invalid AuthSub Token


  • Versión inicial