About RFIDFYI

RFIDFYI is a free, open encyclopedia dedicated to RFID (Radio-Frequency Identification) technology. We document every RFID tag IC, standard, and protocol to help developers, engineers, and product teams make informed decisions.

What We Cover

• 63+ RFID Tag ICs -- Complete technical specifications for tag ICs from Impinj, NXP, Alien Technology, and more
• Standards & Protocols -- ISO 18000, EPCglobal Gen2, RAIN RFID specifications, and EPC encoding schemes
• Guides -- From beginner introductions to advanced implementation strategies
• Interactive Tools -- Tag selector, EPC encoder/decoder, range calculator, ROI calculator, and more
• Comparisons -- Side-by-side tag comparisons and cross-technology analyses

Part of the Code FYI Family

RFIDFYI is part of the Code FYI family of technology encyclopedias. Our sister sites cover complementary identification and communication technologies:

Available in 15 Languages

RFIDFYI is available in English, Korean, Japanese, Chinese (Simplified), Spanish, Portuguese, Hindi, Arabic, French, Russian, German, Turkish, Vietnamese, Indonesian, and Thai.

AI & LLM Friendly

Every page on RFIDFYI supports the .md suffix for LLM-friendly markdown output. We also provide llms.txt for AI crawler guidance. Try adding .md to any URL to see the markdown version.