Plugin Auditor is now available inside WordPress. Download Ultimate Auditor

reSmush.it : The original free image compressor and optimizer plugin v1.0.6

reSmush.it is the FREE image compressor and optimizer plugin - use it to optimize your images and improve the SEO and performance of your website.

Plugin Auditor is an independent service and is not affiliated with, endorsed by, or sponsored by reSmush.it or its developer. Disclaimer.

  • Audit coverage Up to date 30 versions audited
  • On Plugin Auditor since Sep 4, 2026
  • Last audited Sep 4, 2026

Compatibility & requirements

The PHP and WordPress versions this plugin needs, and how current its version support is.

  • Requires PHP 7.4+
  • Requires WordPress 4.0.0+
  • Tested up to WP 7.1 WP 7.1.3 is current
  • Version adoption 81% run the current version

Audit scores by category

125 checks

How this plugin scores across the six areas we audit, from security to accessibility.

  • 76 Passed
  • 39 Warnings
  • 10 Failed
Security 62/100
Needs Improvement

23 of 37 checks passed.

Code Quality 59/100
Needs Improvement

36 of 61 checks passed.

Performance 42/100
Poor

5 of 12 checks passed.

Compatibility 83/100
Good

5 of 6 checks passed.

Privacy 100/100
Excellent

3 of 3 checks passed.

Accessibility 67/100
Needs Improvement

4 of 6 checks passed.

Code footprint

How much code ships in this plugin, and the file types that make it up.

View in detail

ZIP file size

236.4 KB

533.8 KB unzipped

Total files

57

across all file types

Lines of PHP

6,247

in 24 files Medium

File types

  • PHP
  • PNG
  • JSON
  • CSS
  • Other

Top issues

The most important findings from the latest audit, ordered by severity.

  • 11 Critical
  • 70 High
  • 112 Medium
  • 174 Low

This is a preview of notable findings. Full file-level results, line numbers and code context are in the scan.

View full report

How scores changed across versions

Across 30 audited versions of reSmush.it : The original free image compressor and optimizer plugin, The largest regression was in Performance (-25). The codebase grew 256% in size.

Audited 0.3.5 → 1.0.6 · 30 versions

0 50 100 0.3.5 0.4.2 0.4.12 1.0.6

How issues changed across versions

Findings by severity for each audited version, so you can see which issues were fixed over time.

0 185 370 0.3.5 0.4.2 0.4.12 1.0.6

Download momentum

How fast this plugin is being installed lately, and whether that pace is rising or slowing.

Last 7 days

3,309

downloads

Today

518

downloads

Week over week

−17%

vs previous week

Month over month

−38%

vs previous month

Download trend: Declining. Abandonment risk: None.

Version intelligence

19% of installs run an older version

≈ 18.7K+ sites on a lower-scoring version.

  • Other
  • v0.4
  • v1.0

Ratings

165 ratings on WordPress.org

  • 5 131
  • 4 3
  • 3 7
  • 2 2
  • 1 22

Support: 2 / 2 threads resolved in the last two months

Maintenance & history

How actively this plugin is kept up, from its last update to its release history.

Last updated

This month

Jun 16, 2026

Actively maintained

Release cadence

~ every 11 days

average between releases

Total releases

64

since Jul 2016 · 10 yrs

Contributors & developers

The people credited with building and maintaining this plugin.

Running reSmush.it in Your Site?

Our latest audit of reSmush.it v1.0.6 flagged 367 issues. Scan your own copy to see each one with its exact file, line number, and a recommended fix.

reSmush.it and its trademarks are used only to identify the plugin analyzed and remain the property of their owners. This is an independent Plugin Auditor audit, not affiliated with, sponsored by, or endorsed by the plugin's developer. Metadata may come from WordPress.org; scores, findings, classifications, and visualizations are independently generated by Plugin Auditor. Full disclaimer.