Over 33% of the web runs on WordPress. WordPress.com is home to everyone from brand new bloggers and entrepreneurs, to major brands like TIME, TED, and Spotify.
Dozens of themes
Choose from hundreds of customizable themes, with new additions weekly.
Mobile-friendly
Create a mobile‑friendly site with a click, or choose from a selection of responsive themes that look great everywhere.
Fast, friendly support
Get expert help — our team of Happiness Engineers is standing by.
Support is available 24/7 via email and our community forums. For folks with a paid plan, Happiness Engineers are available via live chat for real‑time assistance.
Write without worry
Our editor is fast, intuitive, and saves your work every few seconds, so you never miss a word.
Upload or embed media
Drag-and-drop images into posts and pages. Create designer-worthy photo galleries. Embed audio, video, and more.
Mobile and desktop apps
Update your site from anywhere with mobile and desktop apps for iOS, Android, Mac, Windows, and Linux systems.
Whatever you create on WordPress.com is yours to keep. Export your content at any time — wherever life takes you, your content follows.
WordPress.com has millions of users. The WordPress.com Reader helps them find you — and lets you find fascinating new reads.
Reference : https://wordpress.com/features/