RadioChat

RadioChat for your desktop

A chat-powered workspace that goes wherever you do.

Chat with your friends and collaborate on notes, to-do lists and more. Discover new people and IRC-like groups with the safety and privacy of on-device moderation. Ask AI to complete your workflows, or send a friend an AI ambassador with a personality you create!

Vibe upgrade your life in one app that makes executing powerful ideas, simple.

Free for personal use and for workgroups.

Finding the right download for your computer…

These builds are not code-signed yet, so Windows and macOS show a warning the first time you open RadioChat. Here is what to expect.

See it in action

AI workflows with your friends, your boards and your bots — RadioChat in seventy seconds. Tap Sound to hear it.

All downloads

    Use RadioChat in your browser instead

    What you get

    • Its own window. RadioChat opens like any other app, with full screen on F11 or from the menu.
    • A built-in browser. Web pages open inside RadioChat, and your AI friends can read the pages you have open when you ask for their help.
    • Desktop shortcuts. On Windows the installer adds shortcuts to your Desktop and Start menu. On a Mac it lives in Applications and the Dock.
    • Notifications. RadioChat can show system notifications; it asks you first.
    • AI friends. Claude, ChatGPT and Gemini in your chats — with your own key if you like. How your AIs work.

    It is the same RadioChat as the website, with the same account, stations, friends and AI friends.

    Your AIs, on your terms

    Bring Claude, ChatGPT and Gemini into the same chats as your friends. Every AI is yours: you choose the provider, the model, and what it’s allowed to do.

    • Bring your own key.

      Add your own Anthropic, OpenAI or Google key and your AI’s requests go straight from your device to that provider — not through RadioChat’s servers. You pick a provider and plan whose data terms you trust: the paid APIs from Anthropic, OpenAI and Google don’t use your conversations to train their models by default.

    • Or use RadioChat credits.

      Claude, ChatGPT and Gemini on RadioChat credits — and the free Starter AI — run on RadioChat’s paid API accounts, under those providers’ API terms: your conversations aren’t used to train their models.

    • Mind the free tiers.

      A free Gemini key from Google AI Studio is different: Google’s free-tier terms let it use what you send to improve its products, and people may review it. Use a paid key or credits for anything private.

    • You decide what they can do.

      For each kind of chat, choose what your AIs may do for you and for other people. They only act for someone else when that person @-mentions them, and never with your private things.

    • Keys stay yours.

      Your keys are kept in your encrypted sync. Share one with a friend and they can use it through RadioChat without ever seeing it.

    Private by default

    • Your Private Library stays private.

      Everything in your Private Library is encrypted before it syncs between your devices, and RadioChat never opens it. Nothing in it is shared until you add someone.

    • Lock anything with a passkey.

      Protect an item with your passkey and it needs your passkey to open. Your AIs can never see it — not even while you have it open — and it can’t be shared until you remove the lock.

    • Nobody at RadioChat reads your chats.

      All messages are encrypted on their way between your device and our servers. Our servers can decrypt them, so your chats are there on every device, new members can read a station’s history, your AIs can keep working while you’re away, and a message someone reports can be checked. The Vikhanden Privacy Policy guarantees that people at Vikhanden don’t read your messages unless one is reported to us or the law requires it. We never sell your data, use it for ads, or use it to train AI. Protect an archived chat with a password and it’s sealed on your device: we can’t open it at all.

    • Built by Vikhanden, with security first.

      RadioChat is built by Vikhanden. Our developers have designed mission-critical communications systems and hold security certifications, and they bring that care to keeping your data safe. Your Gmail never reaches us. Your own AI keys are encrypted on your device and talk straight to the provider. Signing out clears everything RadioChat kept on that device.

    Installing RadioChat

    RadioChat for desktop is not code-signed yet, so Windows and macOS warn you the first time you open it. The warning is about the missing signature, not about anything found in the file. Only install files you downloaded from this page, and you can check yours against the SHA-256 shown with each download.

    Windows

    1. Download the .exe and double-click it. Your browser may say it is not commonly downloaded; choose Keep.
    2. If Windows says “Windows protected your PC” (SmartScreen), select More info, then Run anyway.
    3. Choose where to install (the suggested folder is fine) and finish. It installs for your Windows account only, and adds shortcuts to your Desktop and Start menu.

    Mac

    1. Open the downloaded .dmg and drag RadioChat to Applications.
    2. Open RadioChat from Applications. macOS says it “can’t be opened” because it could not check it for malware; choose Done (or OK).
    3. Open System Settings › Privacy & Security, scroll to Security, and next to RadioChat choose Open Anyway. Enter your password, then choose Open. You only do this once.

    On macOS 14 Sonoma or earlier you can instead Control-click RadioChat in Applications, choose Open, then Open again.

    RadioChat Web Clipper

    Right-click a page, a selection or a picture in your browser and clip it into RadioChat: as a new note in your Power Library, or to your 24-hour clip memory to paste into any document.

    Download for Chrome & Edge

    Version 1.0.0 · the same download on Windows and Mac · Firefox version

    Install it (Chrome or Edge)

    1. Unzip the download into a folder you’ll keep (for example Documents). The browser loads the clipper from that folder, so don’t delete it.
    2. Open chrome://extensions (in Edge, edge://extensions) and turn on Developer mode.
    3. Choose Load unpacked and pick the folder.
    4. Pin it: the puzzle-piece button on the toolbar, then the pin (in Edge, the eye) beside RadioChat Web Clipper.

    Connect it to RadioChat

    1. In RadioChat, open Start › Sync & Data › Web Clipper › Connect a browser, name it (“Chrome at reception”) and copy the key. It’s shown once.
    2. Click the clipper’s toolbar button, paste the key and choose Connect.

    Safari isn’t available yet. In Firefox, open about:debugging › This Firefox › Load Temporary Add-on… and pick manifest.json from the unzipped folder; it stays only until Firefox restarts, until the clipper is signed by Mozilla.

    Check your download (optional)

    Each download above shows its SHA-256 fingerprint. After downloading, compute your file’s and compare:

    Windows (PowerShell)

    Get-FileHash $HOME\Downloads\RadioChat-….exe

    Mac (Terminal)

    shasum -a 256 ~/Downloads/RadioChat-….dmg

    System requirements

    • Windows 10 or 11, 64-bit (x64).
    • macOS 13 Ventura or later, on an Apple Silicon or an Intel Mac.
    • An internet connection: your chats and account are on RadioChat’s servers.

    RadioChat for desktop does not update itself yet. To update, download the newest version from this page and install it over the old one.