Kewline · by Kewsign LLC

One Inbox.
Every Channel.
Zero Missed Messages.

Kewline brings your business conversations from WhatsApp Business, Facebook Messenger, and Instagram Direct into a single shared team inbox — so no customer message is ever lost across apps.

🟢 WhatsApp Business 🔵 Facebook Messenger 🟣 Instagram Direct

Unified Team Inbox

All channels side by side, with assignment, labels, notes, and conversation status — built for teams, not one person's phone.

Secure by Design

Official Meta APIs only. Your channel access tokens are encrypted, and revoking access removes our ability to see your data immediately.

Built for Businesses

Connect your WhatsApp Business number, your Facebook Page, and your Instagram Professional account in minutes — no developer work required.

How connecting works

  1. Create your workspace — add your team and their roles in Kewline.
  2. Connect your channel — sign in through Meta's official authorization flow; you approve exactly which WhatsApp Business Account, Page, or Instagram account Kewline may access.
  3. Everything lands in one inbox — new customer messages from WhatsApp, Messenger, and Instagram appear instantly, ready for your team to reply.

Your permissions, your control. Disconnect any channel — or remove Kewline from your Meta Business Integrations — at any time. See our Data Deletion page for full timelines.

Questions or want early access?

Email [email protected] · Call or WhatsApp +967 773 115 768 · +967 77 33 99 000

Operations office: Haddah Street, before Al-Kumaim Mall, Sana'a, Yemen