Online Tools for Spanish

Synonym and Antonym Search

Wordreference

elmundo.es

Spell Checker

Corrector Orangoo

Dictionary of the Real Academia Española

Spanish Language Dictionary

Panhispanic Dictionary of Doubts

Etymology

Spanish Language Etymological Dictionary

Slogans

Slogan maker

Morphology

Morpholexical associations

Verbs

Spanish verbs conjugator with enclitic pronouns and prefixes

Nouns

Noun inflector: gender, number, suffixes, and prefixes  

Adjectives

Adjective inflector: gender, number, suffixes, and prefixes