Spanish to English is described as 'Instant Spanish to English translation. Thousands words and phrases available! Also features daily grammar and vocabulary lessons!' and is an website in the Education & Reference category. There are more than 100 alternatives to Spanish to English, not only websites but also apps for a variety of platforms, including Windows, Android, iPhone and Mac. The best alternative is Google Translate, which is free. Other great sites and apps similar to Spanish to English are DeepL Translator (Freemium), Wiktionary (Free, Open Source), QuestSoft QTranslate (Free) and Tatoeba (Free, Open Source).
QTranslate is a free translator for Windows. With this small utility, you simply select the text you want to translate and then press hot key (Ctrl+Q to show translation in the popup window or Double Ctrl click to show the translation in the main window).
At its core, Tatoeba is a large database of example sentences translated into several languages. Search example sentences translated into many languages. Add and translate your own sentences. It's collaborative, open, free, and even addictive.
dict.cc is not only an online dictionary translating from English and German to 21 languages. Its an attempt to create a platform where users from all over the world can share their knowledge in the field of translations.