Yes, Hammy is free to use. It is available as a free plugin on WordPress.org.

How many websites use Hammy?

Hammy has 200 active installations as tracked by WordPress.org.

What are the best Hammy alternatives?

Popular alternatives to Hammy include Firelight Lightbox, Imsanity, Menu Image, Icons made easy. You can compare them side-by-side on our comparison pages.

Does Hammy work with the latest WordPress?

Hammy has been tested up to WordPress 3.7.41. It requires WordPress 3.5+ and PHP false+.

PluginSift

Hammy

Name: Hammy
Rating: 3.3 (16 reviews)
Author: Noel Tock

Hammy speeds up your website by generating and serving resized images for your content area depending on content width.

By Noel Tock·Image·Free

3.3(16 reviews)

·200 active installs·Updated 12 years ago

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As of April 2026, Hammy is a WordPress image plugin with 200 active installations and a 3.3/5 rating from 16 reviews. It has been downloaded 66K+ times in total. Requires WordPress 3.5+ and PHP false+. Available on WordPress.org since 2012. Last updated 12 years ago — may have compatibility concerns. Top alternative: Firelight Lightbox.

3.3/516 reviews

200active installs

66K+total downloads

14 yearssince 2012

Overview

Introduction

Hammy takes your regular content images (only within posts and pages, not custom post types) and regenerates a number of smaller sized images. When a person visits your website, it then automatically provides them with the most appropriate image (or the smallest one possible). This makes for a better experience, especially on mobile. This uses the new WP 3.5 image code.

Will it work on my Theme?

Yes! (the only exception being themes with no standard posts or pages)

How does it work?

When activated, the <img> tag is replaced by the <figure> tag, and the alternate image sizes are provided in a way that only jQuery can access/load. If jQuery isn’t available, it falls back to the regular image you had there in the first place.

It also takes on any classes or alt…

Read full description on WordPress.org