Running a blog in multiple languages doubles your potential audience but introduces real complexity. WordPress doesn’t natively support multilingual sites — you need a plugin. The three main options handle translation very differently. This post is the practical comparison.
The two approaches to multilingual
Duplicate posts per language
Each post exists as a separate WordPress entry per language. WPML and Polylang use this model.
Pros: each language version is a real WordPress post with its own SEO, comments, URL structure.
Cons: more admin overhead, more posts to manage.
Single post, translated on render
One post; translations stored separately and swapped in based on language. TranslatePress uses this model.
Pros: simpler admin, visual front-end translation interface.
Cons: less granular per-language control, slightly different SEO model.
WPML
The oldest and most feature-complete. Paid only.
Pricing
- Multilingual Blog: $39/year.
- Multilingual CMS: $99/year (most features).
- Multilingual Agency: $199/year (multi-site).
Strengths
- Translates posts, pages, taxonomies, menus, widgets, theme strings, plugin strings.
- Strong WooCommerce integration (translate products, categories, variations, checkout strings).
- Translation Management module (assigns translations to translators).
- Compatible with most themes and plugins.
- Long track record.
Weaknesses
- Heavy plugin. Adds significant overhead.
- Steeper learning curve.
- Adds multiple database tables.
- Has had known performance issues in the past (largely improved).
Best for
Complex sites: multilingual e-commerce, multilingual memberships, multi-site networks, teams with translators. Not the right fit for a simple bilingual blog.
Polylang
Free core plugin with paid Pro upgrade.
Pricing
- Free: most basic functionality.
- Polylang Pro: €99/year for single site.
- Polylang for WooCommerce: €99/year separately.
Strengths
- Free core covers many needs.
- Lighter than WPML.
- Native WordPress feel — translations are separate posts in admin.
- Active development.
Weaknesses
- WooCommerce support requires separate paid extension.
- Some advanced features locked to Pro.
- Less polished translation management UI.
Best for
Bloggers on a budget. Bilingual or trilingual content blogs. People comfortable with WordPress admin.
TranslatePress
Newer approach. Visual front-end translation.
Pricing
- Free: 1 extra language, manual translation.
- Personal: €89/year. Multiple languages, automatic translation integration.
- Business: €139/year.
- Developer: €229/year.
Strengths
- Translate visually from the front end (click text, edit translation, save).
- Automatic translation via Google Translate or DeepL API.
- Translates everything visible on the page (theme strings, plugins, dynamic content).
- Lighter database footprint.
- Easiest learning curve.
Weaknesses
- Less granular control than per-post-per-language model.
- Automatic translation costs money (API fees).
- SEO model is slightly different (URL structure varies).
Best for
Bloggers who want minimum admin friction. Sites where most content should be auto-translated as a baseline with manual polish on top.
SEO across multilingual plugins
All three handle SEO basics:
- Separate URLs per language (either /es/post-slug or es.domain.com).
- hreflang tags telling Google about language alternatives.
- Per-language sitemaps.
URL structure choice:
- Subdirectory: domain.com/es/. Simplest, most common.
- Subdomain: es.domain.com. Cleaner separation but more setup.
- Different domains: domain.es. Best for serious country targeting; complex setup.
Subdirectory works for most blogs.
Translation: manual vs automatic vs professional
Manual
You write each translation yourself. Best quality. Slowest.
Automatic (Google / DeepL)
Plugin auto-translates via API. Costs: typically $20/million characters.
Quality: good for many language pairs, sometimes awkward. Always review.
Professional translators
Hire translators per post. $0.05–$0.15 per word.
For a 1500-word post: $75–$225.
WPML’s Translation Management module integrates with translation services.
AI translation (Claude, GPT-4)
Higher quality than basic machine translation. Run via API, paste results.
Best practice: AI-translate, then have a native speaker review.
Maintenance overhead
Every new post = N translations.
If you write 4 posts/month and run 3 languages, you have 12 posts to translate monthly.
Realistic options:
- Auto-translate everything (cheap, lower quality).
- Translate only top-performing posts (selective, higher quality).
- Hire ongoing translators (expensive, professional).
Most bloggers translate selectively — top 20% of posts in additional languages.
When NOT to do multilingual
- You don’t have a maintenance plan. Half-translated blogs look unprofessional.
- Your audience is single-language. Don’t translate aspirationally.
- You’re starting out. Multilingual adds complexity. Get one language working first.
It’s better to be excellent in one language than mediocre in three.
Common pitfalls
- Translating slugs but forgetting redirects when changing them.
- Auto-translating brand terms and product names that shouldn’t be translated.
- Not translating featured image alt text.
- Inconsistent language coverage (some pages in 3 languages, some in 1).
- Broken hreflang tags pointing to wrong URLs.
Performance considerations
Multilingual plugins add database queries. On large sites:
- Use object caching (Redis).
- Use a CDN that handles multi-language caching properly.
- Monitor query counts; multilingual queries can balloon.
WooCommerce multilingual specifically
If you sell products in multiple languages:
- WPML Multilingual CMS has best WooCommerce support.
- Polylang requires “Polylang for WooCommerce” separately.
- TranslatePress handles WooCommerce in its Pro tiers.
For serious multilingual e-commerce, WPML is typically the right choice despite cost.
The honest summary
WPML is the heavyweight — most features, highest cost, steepest learning curve. Polylang is the budget-friendly standard with a usable free tier. TranslatePress wins on simplicity and visual editing. For a bilingual blog: TranslatePress or free Polylang. For complex multilingual e-commerce: WPML. For most cases in between: TranslatePress is the easiest to live with, Polylang is the cheapest. Don’t go multilingual without a maintenance plan.
