Uplink7

Uplink7 Automatic Translator for Google Translate is a lightweight and powerful solution to make your website global. It uses the official Google Translate engine to provide instant translations into over 100 languages.
Unlike other plugins, it focuses on performance and SEO. Features include: 
* Lazy-Load Technology: The Google Translate script only loads when needed, keeping your site fast. 
* Automatic Injection: Place the translator in the header, footer, or as a floating widget without touching code. 
* SEO Optimized: Supports Hreflang tags to help search engines index your translated content (Premium). 
* Privacy & Protection: Includes email protection to prevent bots from scraping your email addresses in translated versions. 
* Full Customization: Adjust colors, borders, and font sizes to match your brand design.
<h4>External Services</h4>
This plugin relies on the third-party service Google Translate to provide the translation functionality. 
* Service: Google Translate (Google LLC) 
* Usage: It loads the Google Translate API script to enable the language switcher and content translation. 
* Data sent: When a user interacts with the translator, technical data (such as the IP address and browser information) may be sent to Google to provide the service. No personal WordPress user data is transmitted. 
* Links: <a href="https://policies.google.com/privacy" rel="nofollow ugc">Google Privacy Policy</a>, <a href="https://policies.google.com/terms" rel="nofollow ugc">Google Terms of Service</a>.

Uplink7 Automatic Translator for Google Translate

Professional Google Translate integration with Lazy-Load, SEO-Hreflang tags, Auto-Injection, and Email Protection.

Freemius

Matias Escudero

Universalist lets you pair any primary language with any secondary language and write your page titles, headings, text, and lists in both. It automatically detects a visitor’s browser language, but you can also force the switch to the secondary language whenever needed. Once your two languages are selected, you can set dedicated content for each—giving every visitor a seamless, localized experience.
<h3>Source Code</h3>
You can find the full source on GitHub: 
https://github.com/distantjet/universalist

Universalist

Create content for any primary and secondary language.

Uplink7 Automatic Translator for Google Translate vs Universalist