Describe it.
Hephaestus builds it.
You stay in control.
Hephaestus is a conversation-first coding assistant. Tell it what you want, watch a live preview update as it works, and review every change before it lands. Your project stays on your machine throughout.
What it does
Software, built through conversation
Describe what you want and watch it take shape. Your project stays on your machine.
Say what you want, in plain English
No IDE to configure, no boilerplate to write by hand. Describe the feature or fix and Hephaestus plans the change, writes it, and shows you what moved.
- Understands your existing project structure
- Plans multi-file changes before touching anything
- Explains what it is doing and why
Understands your existing project structure
Watch it happen, live
A live preview updates as changes are made, so you see the result take shape instead of reading a diff cold.
- Live preview alongside the conversation
- Every change reviewable before it is kept
- Undo and steer at any point
Live preview alongside the conversation
Your code stays yours
Your project, files, and edit history are stored and processed on your machine. Nothing about your codebase is required to leave your device to keep working.
- Project data stored locally
- Full edit history kept on your device
- Built for developers who want to see the code, not just trust it
Project data stored locally
How it works
From idea to running software in one conversation
Install Hephaestus
Download the app and open a new or existing project.
Describe what you want
Tell Hephaestus the feature, fix, or app you have in mind, in plain English.
Watch the live preview
Changes appear as they are made, so you can see progress as it happens.
Review and refine
Approve changes, ask for adjustments, or dig into the code yourself at any time.
Why Hephaestus
How we compare
A conversation-first way to build software, without giving up visibility into your code.
| Feature | Hephaestus | GitHub Copilot | Cursor |
|---|---|---|---|
| Project files stored locally | |||
| Conversation-first workflow, not a code editor to learn | |||
| Live preview as changes are made | Limited | ||
| Every change reviewable before it is kept | |||
| Full codebase visible and editable if you want it | |||
| No monthly subscription |
Hephaestus is currently in development
We are actively building Hephaestus. Book a demo to learn more about our product roadmap and early access opportunities.
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