WordPress plugin comparison
Custom CSS vs FlatPM
At a glance
- FlatPM has more active installs: 10K+, against 900+ for Custom CSS.
- On a typical day, FlatPM is downloaded about 30 times, Custom CSS about 8.
- FlatPM is rated higher: 4.6 out of 5 from 9 reviews, against 2.5 from 17 reviews.
- FlatPM was updated more recently: Jan 7, 2026, against Nov 28, 2017 for Custom CSS.
- FlatPM is tested with a newer WordPress: 6.9.11, against 4.6.30 for Custom CSS.
- Custom CSS has been around longer: since 2015, against 2021 for FlatPM.
Line by line
FlatPM leads on 7 of 7 comparable lines.
| Metric |  Custom CSS |  FlatPM |
|---|---|---|
| Popular rank | #7,020 | #2,167 |
| Active installs | 900+ | 10K+ |
| Downloads, last 30 days | 166 | 786 |
| Rating | 2.5(17) | 4.6(9) |
| Support threads resolved | – | – |
| Tested up to | 4.6.30 | 6.9.11 |
| Search multiplier | ×0.00 | ×0.58 |
| Last release | 9 years ago | 10 months ago |
| Requires PHP | – | 5.6 |
From WordPress.org's public data, refreshed every night. Downloads are WordPress.org's official daily figures for the last 30 days.
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