Coding through structured daily lessons in Python, Java, C++, JavaScript, HTML, SQL, and more. Complete interactive quizzes after each lesson. Choose difficulty levels and progress at your own pace.
Write and edit documents using Markdown, MultiMarkdown, HTML, Textile, Wikitext, and BBCode. Preview formatted text or HTML in real time. Insert markup with keyboard shortcuts or the format bar. Export to multiple formats and sync across devices.
Generate QR codes with customizable styles including eyes, pupils, and inner pixels. Adjust colors and shapes freely. Embed custom logos. Export as PNG, JPG, SVG, or ASCII Art.
