A browser extension that transforms the national e-Class register ”e-Dnevnik” into a standalone app, featuring a complete redesign aimed at aiding students throughout primary and secondary school.

A browser extension for teachers, enhancing their grading process with additional functionalities to better assess students’ performance and save time.

A creative Python/Vue project for scraping and viewing Telegram data, for the purpose of vibe coding to the max.

Kristijan Rosandić — Software Engineer Portfolio. Deployed on Cloudflare Pages.

Hackathon: A web app built in 3 days to streamline the rental process for community centers in Bjelovar by providing an online platform for availability checking, booking, and contract management.

College project (Final thesis): A cloud storage app focused on front-end, utilizing Firebase to its maximum extent for a real-time, highly customizable cloud file explorer.

College project (App development for mobile devices S5): A cloud storage app with excellent file management, using storage and camera access for file uploads and attachments for chat with Gemini AI.

College project (Internet technology S3): 6 versions of the same web app - built and compared UX & DX: jQuery, Vue, Vue Full, React, React Full, Svelte. Deployed on Cloudflare Pages.

A Tkinter desktop app for evaluating competitive programming solutions written in C, C++, and Python. Used for the national Infokup coding competition in the Algorithms category.

My first GUI app! It shows all combinations for unlocking an Android phone, with display options and more features. Built with the Tkinter GUI module and SQLite database for saving user settings.

College project (Java web programming S6): A dockerized Java Spring web shop, deployed on GCP App Engine. Supports anonymous browsing, customer & admin roles, cart management, purchase history & more.

College team project (Project approach to applications development S4): A Django student-news app, deployed on GCP App Engine. Supports user & admin roles with CRUD for news, courses, and lecturers.

College project (Development of web applications S4): A dockerized ASP.NET Core 6 app, deployed on GCP Cloud Run. Supports user & admin roles with CRUD for many entities, full API support & much more.

College mini project (Data structures and algorithms S2): A C++ console app showcasing Conway's Game of Life.

College mini project (Data structures and algorithms S2): Two C++ console apps visualizing the shortest path between two points on a 2d grid, without and with walls.

College project (Java programming S4): A Java Swing app fetching TradingView data via RSS, with a fully responsive design. Supports user & admin roles with CRUD for ideas, authors, symbols & markets.

College project (Authentication systems and databases S3): A web app providing as many authentication methods as possible using Google Identity Platform and Firebase. Custom OIDC provider included.

College project (OOP.NET S4): Two Windows apps with shared preferences, showcasing FIFA World Cup 2016 results. Built with .NET Core 6 using Windows Forms and Windows Presentation Foundation (WPF).

College mini project (Software engineering S5): A C# console app focused on unit testing using Moq with .NET 7.

College project (Information system interoperability S6): A dockerized Node.js/Java app providing REST, SOAP & XML-RPC APIs, with Zod, XSD, RNG & JAXB validation, XPath search, and custom JWT auth.

A browser extension that autoplays gifs on Google™ Search Images, while also improving static image quality.

A browser extension that adds a search option to find videos with subtitles in the selected language.

A browser extension that replaces every New Tab with my SpaceX page, containing recently closed tabs and useful chrome shortcuts. This project also contains a SpaceX browser theme.

A browser extension that enables zooming into content (mouse pinch-to-zoom). Try now without installation: zoom.k1k1.dev. Deployed on Cloudflare Pages.

Old "e-Dnevnik Plus" homepage. Deployed on GitHub Pages.

High school project: plain html/css website representing my class. Deployed on GitHub Pages.