From Redis and Kubernetes to LLMs and RAG — understand the technologies everyone talks about, explained simply. Free, works offline, no sign-up required.

Open Tech Terms Explained — it's free

Web app · works offline · installable on desktop & mobile

What's inside Tech Terms Explained

• 🔎 Fast search across 128 terms

  Find any technology by name, acronym, category, or keyword — databases, DevOps, cloud, networking, architecture, and AI.

• 🧠 Explained for everyone

  Every term follows the same clear structure: an ELI5 analogy, why it exists, where it's used, pros and cons, when to use or avoid it, alternatives, and interview questions.

• 📶 Works fully offline

  Install it as an app and read the whole encyclopedia with no internet after the first load. No account, no tracking.

• 🗂️ Browse & filter by difficulty

  Explore by category and filter from Beginner to Advanced, bookmark favorites, and revisit recently read terms.