Best file validation plugins for WordPress
The most popular file validation plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. Lord of the Files leads with 1K+ active installs, ahead of Filecheck (fewer than 10). All 2 plugins tagged “file validation” are below, with figures from WordPress.org that update every day.
Installs aren’t everything: a recent release, a “Tested up to” that matches the current WordPress, and support threads that get resolved show a plugin is looked after. Open any plugin for its downloads, rank history and alternatives.
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Top 2 file validation plugins
- 1.
Lord of the FilesThe most installed file validation plugin, with 1K+ active installs. Rated 5.0 from 11 reviews, updated 1 month ago.
- 2.
FilecheckFewer than 10 active installs. No reviews yet, updated 1 month ago.
All 2 plugins tagged “file validation”

Lord of the Files
Down in the last 7 days:16#6,041by Blobfolio1 month ago
This plugin expands file-related security and sanity around the upload process.
- Installs
- 1K+
- Rating
- 5.0(11)
- Downloads
- 46/day

Filecheck
Down in the last 7 days:7,171#69,484by Print.App ApS1 month ago
Preflight artwork validation for WooCommerce. Gates "Add to Cart" until the customer uploads a print-ready file that passes your rules.
- Installs
- <10
- Rating
- –
- Downloads
- 0/day