Defyne Chat

Your team’s conversations, on every device.

Message your team one-to-one or in groups, share files, and preview documents without leaving the chat. Available for Mac, Windows, Linux and Android, with iPhone coming soon.

Get the app Open in your browser

Everything your team needs to stay in touch

Direct & group chats

Message a teammate one-to-one or a whole team in a group. Edit or delete what you send, and see who’s talking at a glance with profile and group photos.

Files & Library

Drag files into a chat to send them. Every image and document lands in your Library, where you can search, preview PDFs and slides, download, or share to another chat.

Scrum Board

Plan sprints on a board or a list: drag tasks between columns, add them with a keystroke, and set assignee, priority, due date and points. Companies with Projects can sync a board with a project both ways.

Notifications that reach you

Choose your message sound, get desktop pop-ups, and phone notifications even when the app is closed. Unread counts follow you on every screen.

Desktop bubble

On Mac, Windows and Linux, a chat bubble floats over your work. Click it to open the panel, drag it anywhere, and it starts when you log in.

Yours and private

Pick a theme, including dark ones like Monokai, and your photo; they follow you to every device. Files download through your sign-in, never public links.

Download Defyne Chat

Pick your platform. Sign in with your Defyne account and your chats are there.

macOS

macOS 10.13 High Sierra or later · Apple silicon and Intel

Apple silicon (M1 or newer)Defyne-Chat-macOS-arm64.dmg · smaller download UniversalDefyne-Chat-macOS.dmg · Apple silicon & Intel
How to install
  1. Which Mac? Apple menu → About This Mac: “Chip: Apple M…” means Apple silicon; “Processor: Intel” means Intel (use Universal). Not sure? Universal works on both.
  2. Open the downloaded file (Defyne-Chat-macOS-arm64.dmg or Defyne-Chat-macOS.dmg) from your Downloads folder.
  3. Drag Defyne Chat into the Applications folder in the window that opens.
  4. Open Defyne Chat from Applications and sign in.

If macOS says Defyne Chat “is damaged” or can’t be checked, open Terminal, paste this, press Return, then open the app again. You only need to do this once per install.

xattr -cr "/Applications/Defyne Chat.app"

Windows

Windows 10 or 11 (64-bit)

DownloadDefyne-Chat-Windows-Setup.exe
How to install
  1. Open Defyne-Chat-Windows-Setup.exe from your Downloads folder.
  2. Follow the steps; Defyne Chat is added to the Start menu.
  3. Open Defyne Chat and sign in.

If Windows SmartScreen shows “Windows protected your PC”, choose More info, then Run anyway.

Linux

Ubuntu 22.04+, Debian 12+, Fedora 38+ or similar (64-bit)

.debDefyne-Chat-Linux.deb · Ubuntu, Debian, Mint .rpmDefyne-Chat-Linux.rpm · Fedora, RHEL, openSUSE
How to install
  1. Not sure which one? Run this in a terminal: amd64 / x86_64 means Intel/AMD, arm64 / aarch64 means ARM.
    uname -m
  2. Ubuntu, Debian or Mint on Intel/AMD: download Defyne-Chat-Linux.deb, then run:
    sudo apt install ~/Downloads/Defyne-Chat-Linux.deb
  3. Ubuntu, Debian or Raspberry Pi OS on ARM: download Defyne-Chat-Linux-arm64.deb, then run:
    sudo apt install ~/Downloads/Defyne-Chat-Linux-arm64.deb
  4. Fedora or RHEL: download Defyne-Chat-Linux.rpm (Intel/AMD) or Defyne-Chat-Linux-arm64.rpm (ARM), then run the matching command (openSUSE: zypper install instead of dnf install):
    sudo dnf install ~/Downloads/Defyne-Chat-Linux.rpm
  5. On ARM:
    sudo dnf install ~/Downloads/Defyne-Chat-Linux-arm64.rpm
  6. Open Defyne Chat from your app menu, or start it from a terminal:
    defyne-chat

If apt says the dependencies are “not installable” for :amd64, your machine is ARM: use the ARM64 download instead. On Wayland desktops the chat bubble returns to its default corner after a restart.

Android

Android 7.0 or later

DownloadDefyne-Chat-Android.apk
How to install
  1. Download Defyne-Chat-Android.apk on your phone and open it (from the notification, or Files → Downloads).
  2. If asked, allow your browser or Files app to install unknown apps.
  3. Open Defyne Chat, sign in, and allow notifications.

Google Play availability is coming. Updates installed from the .apk keep you signed in.

iPhone & iPad

iOS 15 or later

App StoreComing soon
How to install
  1. Get Defyne Chat from the App Store.
  2. Open it, sign in, and allow notifications.

Until the App Store release, open the web app in Safari and choose Share → Add to Home Screen.

No install needed

Use Defyne Chat in any modern browser, with the same chats, files and notifications.

Open web app

How to use Defyne Chat

  1. Sign in

    • Use your Defyne account, the same one you use for the other Defyne apps.
    • You stay signed in while you use the app; signing out on one device doesn’t affect the others.

  2. Start a conversation

    • Select New, then choose Direct Message to talk to one person or Group Channel for a team.
    • Group admins can rename the group, set its photo, and add or remove members in Group settings.

  3. Send messages and files

    • Type and press Enter to send. Attach files with the paperclip, or drag them straight into the chat.
    • Hover your own message to copy, edit or delete it. Use Select to delete several at once.
    • Supported files: PDF, Word, PowerPoint, Excel, CSV, JSON, text, Markdown and images, up to 25 MB.

  4. Use the Library

    • Library collects every image and file from your chats. Drop files anywhere in the app to upload them privately.
    • Open PDFs and PowerPoint decks right in the app: move between pages, swipe, and zoom in.
    • Share any file to other chats, or download it.

  5. Plan work on the Scrum Board

    • Pick a sprint at the top, or Backlog for work that isn’t scheduled yet. Switch between Board and List.
    • Click + Add task in any column, type a name and press Enter; keep typing to add the next one.
    • Drag tasks between columns, or click one to set its assignee, priority, due date, points and details.
    • With the Projects module, use Connect to Projects under the board name to sync it with a project both ways.

  6. Set up notifications

    • In Settings → Notifications, pick a message sound and volume, or turn desktop pop-ups on or off.
    • On your phone, allow notifications the first time you sign in so messages reach you when the app is closed.

  7. On desktop: use the bubble

    • Click the bubble to open or close the chat panel; drag it to move it anywhere on screen.
    • Use the red, yellow and green buttons to close, minimize or expand the panel.