Your IDE.
Your models.
Your code.
All local.
Your IDE. Your models. Your code. All local.
IDE with inline AI code suggestion
What it does
AI-powered coding, built into your editor
Every feature runs locally. Your code stays on your machine.
Code completion that understands your project
Indexes your project locally. Suggestions follow your naming conventions, patterns, and architecture.
- Project-wide context awareness
- Respects your coding conventions
- Works with monorepos and large codebases
Project-wide context awareness
Refactor with natural language
Describe the change: "rename to camelCase", "extract into a helper". The AI understands intent, not just text.
- Multi-file refactoring
- Understands what you mean, not just what you typed
- Preview changes before applying
Multi-file refactoring
Generate tests from your code
Highlight a function and get tests for the happy path, edge cases, and errors. Framework-aware and idiomatic.
- Framework-aware test generation
- Edge case coverage
- Integration with existing test suites
Framework-aware test generation
How it works
From install to first suggestion in minutes
Install Hephaestus
Download the app. VS Code settings and extensions import automatically.
Connect to Hermes
Discovers local Hermes instances and connects to a running model.
Index your project
Open your project. The index is built locally and stays on your machine.
Start coding
Completions, refactoring, and explanations, all powered by local AI.
Why Hephaestus
How we compare
AI coding features without the privacy trade-offs.
| Feature | Hephaestus | GitHub Copilot | Cursor |
|---|---|---|---|
| All processing stays local | |||
| No code sent to third parties | |||
| Works fully offline | |||
| Full VS Code extension support | Partial | ||
| Project-wide context indexing | Limited | ||
| Natural language refactoring | |||
| No monthly subscription | |||
| Choose your own model | |||
| Air-gap compatible |
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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