Eventbrite - Discover Great Events or Create Your Own & Sell Tickets

PurpleTrail - Whether it is about birthday or wedding party or holidays, you just need to name the event and PurpleTrail will provide you the apt invitation solutions.

Ticket Tailor - Ticket Tailor is an easy-to-use event ticketing platform that allows event organizers of all shapes and sizes to sell tickets online.

Evite - Send online invitations for all occasions by email or text message. Create invites for birthdays, baby showers, save the dates, or customize your own design.

Cvent - Cvent's event management software provides event planners with a complete solution to increase event attendance and decrease event costs.

Zoji - As claimed by the developers of this Zoji, it caters online tools to aid you plan activities off-line.