beecrowd vs CSSBattle

beecrowd is a web and API platform for practicing programming and connecting with opportunities. Users solve problems in languages including Python, Java, C++, Kotlin, and Rust, earn ranking points, unlock badges, and participate in open contests. The Academic offering lists AI-generated custom exercises and test cases, plus automated translation into English, Portuguese, and Spanish. Institutional Academic features include support for multiple professors, centralized data management, and LMS integration through LTI 1.3/Advantage, with single sign-on and automatic movement of grades and exercise results. The Academic Free individual plan costs nothing and includes one active subject, up to 20 students per subject, and 2,500+ programming challenges. Contest creation can be requested by contacting support at least seven working days ahead. API access requires a request to the beecrowd team and HTTPS; each application has a default limit of 100 requests per hour, which may change. Authorized applications can access problem information and, with user authorization, profiles and submissions. Code cannot currently be compiled directly on the portal.

CSSBattle is a web game for practicing HTML and CSS by rebuilding target images with the shortest possible code. Scores reflect both visual similarity and character count. You can open targets and write code without an account, but logging in is required to submit and receive a score. A new Daily Target appears at 00:00 UTC; these daily challenges have no leaderboards. Battles use separate targets and leaderboards, while private Versus battles support one-on-one challenges with friends. Submissions cannot use JavaScript, SVG, images, or external assets, and are rendered in a headless Chromium browser on Ubuntu 18.04. Learn courses add interactive levels and quizzes for beginners, intermediate learners, and experts. The free plan permits only the current day’s target. PLUS adds more than 1,100 past Daily Targets, top solutions, plugins, statistics, search and sharing, unlimited history, and a VSCode editor. CSSBattle Free costs nothing; PLUS costs $4.90 a month or $59 a year.