Polylang vs WPML String Translation

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Feature Polylang v3.9.1 · checked 23 Oct 2026 Free + paid · ★ 4.7/5 Visit Details WPML String Translation v3.5.4 · checked 23 Oct 2026 Paid Visit Details
At a glance
Active installs 900,000+ —
Last updated October 21, 2026 —
Editions Polylang · Polylang Pro ($) WPML String Translation ($)
Pros Unlimited languages with WordPress language packs; Language switcher widget and block; Language-specific URLs and multilingual sitemaps Scans theme and plugin files for translatable strings; Translates strings, PO and MO files and post slugs in one place; Provides a wpml-string shortcode for inline translation
Cons Translation is manual in the free version; Machine translation and translated slugs need Pro; WooCommerce support is a separate add-on Needs WPML core installed and active; Sold with the WPML subscription, no free edition; Scanning large themes or plugin sets can be slow
Mentioned in our posts 1 —
Features (Translation plugins checklist)
Machine translation Paid No
Visual editor — No
SEO-friendly URLs Yes Yes
WooCommerce No —
Languages limit unlimited —
Free version Yes No
More features
Other features Language switcher widget and block, Multilingual sitemaps, Language-specific URLs, Translated slugs (preview, Pro) ($), Shared slugs (preview, Pro) ($), DeepL machine translation (preview, Pro) ($) Scan theme and plugin files for translatable strings ($), Import PO strings into the string table ($), Translation memory for reusing earlier translations ($), Track where each string appears on the front end ($), Batch translation of registered strings ($), wpml-string shortcode for inline translated text ($)
Integrations
Storage WP Offload Media Lite —
Plugins Yoast SEO, Jetpack WPML ($)
Other polylang.pro licence server ($) —
Requires WordPress 6.8 —
Requires PHP 7.4 —
Tested up to 7.1 —
Phones home No No
External services polylang.pro —
Blocks 2 —
Shortcodes — 1