Mockly

Mockly's Slack chat generator recreates the real client's flat message rows: channel headers, avatars, presence dots, grouped messages, always-on timestamps, light and dark themes, and PNG or video export.

How to make a Slack conversation mockup

  1. 1

    Write the conversation

    Click to add messages, and add senders with names and avatars for a busy channel feel.

  2. 2

    Set the workspace details

    Set the channel name, adjust timestamps, and switch light or dark theme.

  3. 3

    Export

    Hit Export for a PNG mockup or a chat video.

What you can do with the Slack chat generator

  • Real Slack message rows

    Messages render as flat, left-aligned rows with avatars and bold usernames, Slack's layout rather than chat bubbles.

  • Channel header and input

    Channel name with the # prefix, pin and headphone icons, and a "Message #channel" input that follows your channel name.

  • Presence and timestamps

    A green presence dot next to the sender's avatar, and always-visible 24-hour timestamps on the first message of each run.

  • Grouped messages

    Consecutive messages from the same person group under one name and avatar, like the real client.

  • Themes and export

    Light and dark themes that mirror Slack's palette, plus device frame and PNG or video export.