Google Translate - Google's free service instantly translates words, phrases, and web pages between English and over 100 other languages.
DeepL Translator - DeepL Translator is a machine translator that currently supports 42 language combinations.
LibreTranslate - LibreTranslate is a free and open-source and self-hostable machine translation server. It also has a public instance designed for personal or infrequent use.
LibreTranslator - Android translation app with translations from LibreTranslate
Crow Translate - A simple and lightweight translator that allows to translate and speak text using Google, Yandex and Bing.
Lingva Translate - Lingva Translate is a language translation application that helps you to translate any language of the world to any language of your choice.