SpanishDict - Find out why SpanishDict is the web's most popular, free Spanish translation, dictionary, and conjugation site.
Linguee - English Dictionary and Translation Search with 1,000,000,000 example sentences from human translators. Languages: English, German, French, Spanish, and Portuguese
Google Translate - Google's free service instantly translates words, phrases, and web pages between English and over 100 other languages.
Saladict - Saladict is a professional inline translator browser extension, built for comparative reading, with...
DeepL Translator - DeepL Translator is a machine translator that currently supports 42 language combinations.
Anki - Anki is a program which makes remembering things easy. Because it's a lot more efficient than traditional study methods, you can either greatly decrease your time spent studying, or greatly increase the amount you learn.