About
Sparround is a free, open tool for preparing for technical interviews step by step. It currently holds 8 directions and 178 topics: each with explanations, code examples, a quiz, and interview questions with model answers.
🤖 The content is AI-generated
All learning material, quizzes and interview questions on this site were generated with AI and reviewed. This is what makes it possible to expand the content quickly — but to be honest about it: AI can be wrong.
So: verify critical details against official documentation, run the code examples yourself, and email me when you spot an error — I will fix it. Version-specific facts in particular (API names, tool behaviour) can go stale over time.
🔒 Your data stays with you
Sparround has no server and requires no sign-up. Your progress, quiz results and notes live only in this browser (localStorage) — nothing is sent anywhere.
That has one consequence: if you clear browser data or move to another device, your progress does not travel with you. Settings lets you back it up with export/import.
✉️ Support and collaboration
Questions, suggestions, error reports or an offer to collaborate — write in for any of them:
- You spotted an error or outdated information
- You have a suggestion for a new topic or direction
- You want to help write content
🏷️ About the logos
The technology logos next to the directions are trademarks of their respective owners and are used here only to identify the technology a direction covers — Sparround is not affiliated with those projects. Some of the SVGs come from Simple Icons (CC0), the rest are logo files added individually.
🌱 Request a branch
If the direction you are preparing for is missing, send a request. The button opens your email client with a template — tell me your level and stack, and the content is built to match.
✉️ Request a branch