firimar

This simple plugin allows you to import any type of data from large CSV files into your wordpress installation.
Plugin reads CSV file and performs import of its records one by one through AJAX requests, so there are no server timeout issues.
You only need to provide PHP function to perform import of CSV field values into post or taxonomy term or whatever you need.
Usage example:
For example, assume we want to import posts from such CSV file: 
 title,text,brand,image 
 “Check this”,”Samsung content”,Samsung,”https://upload.wikimedia.org/wikipedia/commons/thumb/2/24/Samsung_Logo.svg/2000px-Samsung_Logo.svg.png” 
 “Some news”,”News Here are some news”,Philips,”http://www.underconsideration.com/brandnew/archives/philips_2013_logo_detail.png”
Here we have post title, post content, custom field Brand and thumbnail image.
We can use this code in theme’s functions.php file to implement import function:
<pre><code>add_action('lcih_import_csv_row', 'lcih_import_csv_row');
function lcih_import_csv_row($row)
{
 $post_data = array(
 'post_type' => 'post',
 'post_status' => 'publish',
 'post_title' => $row['title'],
 'post_content' => $row['text']
 );
 $post_id = wp_insert_post($post_data);
 if (!$post_id)
 {
 echo "Error inserting post.";
 return;
 }

 update_post_meta($post_id, 'brand', $row['brand']);

 if ($row['image'])
 LargeCSVImportHandlerPlugin::download_post_thumbnail($post_id, $row['image']);

 echo "Created post ".$post_id;
}
</code></pre>
After that we can go to plugin admin page, select CSV file to upload and click “Start import” button. Import process will begin.

Large CSV Import Handler

After trying almost all major CSV plugins, this is the one that works perfectly for large files. I have a file of 35MB with 83000 posts and was unable to import them but this plugin did it with ease. No server time issues, simple to use. Recommended!

Awesome Work, Great Plugin

Provides ability to import any type of data from large CSV files into Wordpress

methnen

Allows you to manage data sets via a spreadsheet interface and present that data in chart form via the Chart.js or <a href="https://github.com/methnen/m-chart-highcharts-library/" rel="nofollow ugc">Highcharts</a> chart libraries. The charts can then be embedded into a regular post via a handy shortcode.
Note: Starting with version 1.8 the Chart.js library is no longer on the 2.x.x branch which introduces some <a href="https://www.chartjs.org/docs/latest/getting-started/v3-migration.html" rel="nofollow ugc">breaking changes</a>. This will probably only affect you if you were modifying the default Chart.js behavior in some way.
Note: Starting with version 1.7 Highcharts is no longer included with this plugin by default. If you’d still like to use the features that require Higcharts please install the <a href="https://github.com/methnen/m-chart-highcharts-library/" rel="nofollow ugc">M Chart Highcharts Library</a> plugin before installing this update.
For full documentation please see the <a href="https://github.com/methnen/m-chart/wiki" rel="nofollow ugc">Wiki</a>.
To contribute, report issues, or make feature requests use <a href="https://github.com/methnen/m-chart" rel="nofollow ugc">Github</a>.

M Chart

This plugin fits my needs for creating beautiful and responsive charts on my WordPress. Thanks for your work!

Great support and nicely done!

Manage data sets and display them as charts in WordPress.

Large CSV Import Handler vs M Chart