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Primer CSS alternatives
The 39 most used alternatives to Primer CSS, ranked by how many websites run them. Bootstrap leads with 4,872,950 sites; Primer CSS itself is on 58.
Counts are websites whose homepage code loads the tool, in StackGrep's latest crawl.
Questions
What is the most popular Primer CSS alternative?
Bootstrap, on 4,872,950 websites in our index. The table ranks every alternative we track by sites using it.
Do sites switch from Primer CSS?
Some do. The "also run Primer CSS" column counts sites that load both: often a switch in progress. Each tool's page lists its sites, and with an account you can download them.
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