Crisp is a business messaging platform for customer support, sales and marketing teams. It centralizes conversations from live chat, email, Messenger, Instagram, WhatsApp and phone calls into one shared inbox.

Chat widget - live chat for websites and mobile apps.
Shared inbox - centralize messages from chat, email, WhatsApp, Messenger and Instagram.
AI agents - no-code AI workflows trained on your content that answer from chat, WhatsApp, Messenger, Instagram and email.
Knowledge base - help center articles customers can search themselves.
CRM - contact data and past conversations in one place.
Campaigns - targeted emails and in-app messages.
Analytics - day-by-day metrics on support performance.

It is for startups and small to mid-size businesses that want support, sales and marketing messaging in one tool. A 14-day free trial includes all features with no credit card required.