Shortening posts on home page

the easiest way is inserting <!--more--> code in your post.

you can also use

<?php the_excerpt(); ?>

in the loop after checking if this is the home page

Better use excerpt reloaded plugin, I’m using this plugin for past three years without any problems.

Hi,

Open index.php file of your theme and check for this:

<?php the_contents(); ?>

replace with:
<?php the_excerpt(); ?>

Thanks,

Shane G.