MailRelayMail attachments → WhatsApp, Viber, Signal, Telegram

Forward attachments without downloading them

Connect your Gmail, tick the attachments you want, then send them straight to WhatsApp, Viber, Signal or Telegram.
Files are held in the browser's memory only. Nothing is saved to your device and nothing goes through a server.

Settings

Saved in this browser only.

How to get it (one-time)
  1. Open Google Cloud Console and create a project.
  2. Turn on the Gmail API.
  3. Set up the OAuth consent screen: choose External, and add your Gmail as a Test user.
  4. Go to Credentials → Create credentials → OAuth client ID → Web application.
  5. Under Authorized JavaScript origins, add this page's address:
  6. Copy the Client ID and paste it above.
Google opens this mailbox when you tap Connect. Leave empty to choose the account each time. The address must be on the allowed list of the Google login.
Create a bot with @BotFather, send it a message, and get your chat_id from @userinfobot. Bots can send files up to 50 MB.

Send directly with Telegram

The bot sends the selected files straight to these chats.