Text & Language
Some text APIs help you ship faster during development. Placeholder copy, random words for testing, a thesaurus when you're stuck. Others run in production on every user submission — sentiment analysis, language detection, spell checking. This category covers both sides.
Profanity Filter
Detect and censor profanity in text for content moderation
Spell Check
Check spelling and get correction suggestions for misspelled words
Thesaurus
Find synonyms and antonyms for any word to enhance vocabulary and writing
Dictionary
Get word definitions, phonetics, usage examples, and synonyms
Sentiment Analysis
Analyze the sentiment of any text and get a positive, negative, or neutral classification with a confidence score and full class breakdown.
Language Detection
Detect the language of any text with confidence scoring
Text Similarity
Compare two texts and get a cosine similarity score between 0 and 1
Markdown to HTML
Convert Markdown to HTML in a single API call. Optionally sanitize the output to strip unsafe tags and prevent XSS.
Lorem Ipsum Generator
Generate placeholder text for design mockups and prototypes
Random Words
Generate random words for testing, games, and creative projects
Email Normalizer
Normalize email addresses to their canonical form. Lowercased, trimmed, and canonicalized with provider-specific rules including alias-domain resolution. Also available as part of the full Email Validator.