Permissions
Run unattended when you want to
Ask for every command, auto-run the low-risk ones, or allow all, so a long build finishes without stopping to knock.
A local coding harness for Mac
One workspace. Infinite possibilities.
Radiant brings every model, a library of expert agents, real tools, and a live terminal into one Mac-native workspace, and keeps every decision in your hands.
100% Free and Open Source
Cloud subscriptions · API keys · local models
Not a chat box
A workspace for coding agents, with the receipts.
Radiant gives the model a real project to work in, shows you the plan, asks before it acts, and records every move. You stay the operator, from intent to verified change.
142ready-made agentsacross 24 categories
20+model providerssubscriptions · keys · local
1shared historyswitch models mid-thread
0keys in the browserlocal by design
The agent library
A room full of experts. Then make them yours.
Start from 142 ready-made specialists across two dozen fields, then tune each one’s model, personality, and skills. Duplicate an agent, export a curated pack, or bring several into one group chat and let them build on each other.
Browse & filterDuplicateExport / import packsGroup chatAgents consult each otherPer-agent skills
Any model, one history
Cloud speed or local privacy, without starting over.
Sign in with your Claude, ChatGPT, Grok, Qwen, or Copilot subscription, no API key needed, or paste a key for any provider. Run Ollama and LM Studio models with none at all, and download GGUFs from Hugging Face with a disk-space check before every pull. Switch models mid-thread and your whole session comes with you.
Subscription sign-in20+ providersMultiple accountsHugging Face downloadsModel compare
A visible build loop
Think. Act. Verify, and see all of it.
Radiant keeps the agent moving and gives you the right checkpoint at the right moment. Nothing happens off-screen.
Say what to change
Attach files, point at a workspace, pick an agent, or start from a saved recipe.
Approve the plan
Plan mode researches first, asks the questions that are genuinely yours, and waits before touching anything.
Let it work
Read and edit files, run shell commands, keep dev servers alive, and drive a real terminal or the browser.
Read the proof
A live activity feed, changed-file chips, command output, and test results close the loop.
Deep capability, close at hand
Everything the build needs.
The power features stay discoverable without turning the workspace into a control panel.
Generative UI
Results, not walls of text
Agents render stat tiles, tables, diffs, and clickable choices inline.
Computer control
Operate, don’t just describe
Let a vision model drive the browser and desktop, opt-in and visible.
Design Mode
Point at any element
Capture its HTML, CSS, and a screenshot straight into the chat.
Website to API
Turn a site into a client
Watch a page’s network calls and build a reusable HTTP client from them.
Skills & MCP
Teach your workflow
Add reusable skills globally or per agent, connect MCP tool servers, and let Radiant suggest skills from repeated work.
Private desktop
Give an agent its own computer
Isolate an agent on a private Linux desktop in a container, never touching your Mac.
Your devices
One server, every Mac
Run Radiant on the Mac that stays awake and reach the same agents, models, and sessions from your other Macs.
Look & feel
Make it your workspace
A dozen palettes, per-agent color, ten motion backgrounds, and ⌘K to switch models or jump sessions.
Local by design
Power without surrendering control.
Your API keys live in a locked config on your Mac and never enter the browser. Local models need no key at all, the server binds to your machine, and every command and file change shows up in the activity trail before and after it happens.
Keys stay localLocal models · no keyCommand approvalsVisible actions
Put your whole coding stack in one window.
Radiant for Apple Silicon Mac. Free to download, and MIT licensed — the whole thing is on GitHub.
100% Free and Open Source