Head-to-head · October 2026
CSS Url Argument vs Theme Changer
Theme Changer comes out ahead, winning 7 of 7 head-to-head checks against CSS Url Argument.
CSS Url Argument
Adds custom css file to header if specific url argument is present with a parameter.
Theme Changer
Easy theme change in the get parameter. Can be used theme to demo. this to be a per-session only change, and…
| Metric | CSS Url Argument | Theme Changer |
|---|---|---|
| Active installs | <10 | 100+ |
| Downloads (30 days) | 63 | 107 |
| Download trend | +18.9% | +48.6% |
| Rating | — | 5/5 |
| Reviews | 0 | 1 |
| Health score | 21/100 | 41/100 |
| Last updated | 8 years ago | 1 year ago |
| Tested up to | WP 4.9.34 | WP 6.8.11 |
| Support resolved | — | — |
| Requires PHP | 5.2.4+ | Any |
| First released | Sep 2018 | Dec 2014 |
Daily downloads, last 90 days
CSS Url ArgumentTheme Changer
Choose CSS Url Argument if…
You prefer its feature set and workflow — it holds its own on the fundamentals.
- Small user base (<10 active installs)
- Very few reviews so far
- No update in 8 years
- Only tested up to WordPress 4.9 (latest is 7.1)
Choose Theme Changer if…
You care most about active installs, downloads (30 days) and download trend.
- Small user base (100+ active installs)
- Very few reviews so far
- No update in over a year
- Only tested up to WordPress 6.8 (latest is 7.1)
Both compete in: parameter
FAQ
CSS Url Argument vs Theme Changer: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Oct 10, 2026
Which is better, CSS Url Argument or Theme Changer?
Theme Changer comes out ahead, winning 7 of 7 head-to-head checks against CSS Url Argument. Choose Theme Changer if you care most about active installs, downloads (30 days) and download trend.
Is CSS Url Argument more popular than Theme Changer?
Theme Changer is the more popular of the two with 100+ active installs, compared with <10 for CSS Url Argument.
Can I use CSS Url Argument and Theme Changer together?
Both plugins cover parameter, so most sites only need one. Running two plugins that do the same job can cause conflicts and slow your site down — pick the one that fits best and remove the other.
Are CSS Url Argument and Theme Changer free?
Yes. Both are free to download from the official WordPress.org plugin directory. Either may also offer paid upgrades from its developer.
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