7 Free Utility APIs That Replace Paid SaaS Tools

• URL Metadata — extract OG tags, favicon, title from any URL
• Markdown to HTML — convert MD to HTML in one call
• PDF to Text — extract text from PDF URLs
• Language Detector — 55+ languages in one call
• Sentiment Analysis — VADER lexicon, Positive/Negative/Neutral
• User Agent Parser — browser, OS, device from UA strings
• Currency Converter — 150+ currencies, live rates

All free. All on RapidAPI. All cost $0/month.