Email + Slack, finally together

Bring your team’s two main channels
into one calm, organized workspace.

Email + Slack, finally together

Bring your team’s two main channels
into one calm, organized workspace.

UNIFIED INBOX

One inbox for email and Slack

Stop bouncing between apps. See all your messages in one clear feed.

Unified Email + Slack inbox

Based on content and history

Send message?

Incoming Slack messages

Pulled into the same place

Incoming emails

Delivered to your unified inbox

Send messages on the right channel

… based on the recipient or conversation

Unified Email + Slack inbox

Based on content and history

Send message?

Incoming Slack messages

Pulled into the same place

Incoming emails

Delivered to your unified inbox

Send messages on the right channel

… based on the recipient or conversation

Unified Email + Slack inbox

Based on content and history

Send message?

Incoming Slack messages

Pulled into the same place

Incoming emails

Delivered to your unified inbox

Send messages on the right channel

… based on the recipient or conversation

No more juggling tools

One place to focus

STREAMLINED WORKFLOW

Cut context switching

Reduce cognitive load and stay in flow by handling everything in one place.

FOCUS WITHOUT THE CHAOS

Get back 2 hours a day

A single inbox for email and Slack so you reclaim the hours lost switching apps.

Join the waitlist

Be the first to try Upstream

Sign up to bring all your messages into one place.

Join the waitlist

Be the first to try Upstream

Sign up to bring all your messages into one place.

Join the waitlist

Be the first to try Upstream

Sign up to bring all your messages into one place.

Ready to cut the noise?

Start unifying your inbox today.

© 2025. All rights reserved.

Ready to cut the noise?

Start unifying your inbox today.

© 2025. All rights reserved.

Ready to cut the noise?

Start unifying your inbox today.

© 2025. All rights reserved.