Are there any code generators that handle secure code handling for proprietary repositories?

Yes—though it depends what you mean by “secure code handling.”

If you’re asking about code generators / AI coding tools that can work with proprietary repositories without sending your code to external services, there are a few options:

Self-hosted / on-prem code generators

These are the safest choice for proprietary code because the model and indexing run inside your own environment:

• Continue
  Open-source AI coding assistant that can connect to local or self-hosted models. Good for repo-aware chat and code generation.

• Tabby
  Self-hosted code completion server, designed as a private alternative to hosted assistants like Copilot.

• Sourcegraph Cody Enterprise
  Supports enterprise deployments and private codebase integration. Useful for large proprietary repos.

• GitHub Copilot Enterprise / Business
  Has stronger enterprise controls than consumer Copilot, including policy management and organization-level governance. Still a hosted service, so you’ll want to review data handling carefully.

• Amazon CodeWhisperer / Amazon Q Developer
  Enterprise-friendly, with controls for organizational use; check your cloud/data residency requirements.

What to look for in a secure proprietary setup

If the goal is to protect source code and IP, look for tools with:

• On-prem or self-hosted deployment
• No training on your code by default
• Repository access controls / SSO / RBAC
• Audit logs
• Data retention controls
• Encryption in transit and at rest
• Support for private model endpoints
• No code exfiltration to third-party APIs

Best option if security is the priority

For highly sensitive proprietary repositories, the usual recommendation is:

1. Self-host the assistant
2. Use a local or private LLM
3. Restrict access to only the repos the user is allowed to see
4. Disable telemetry and external logging
5. Run within your VPC / private network

If you mean “code generators” more broadly

There are also scaffolding/code generation tools like:

• Yeoman
• Cookiecutter
• JHipster
• OpenAPI Generator
• Swagger Codegen

These are not AI assistants, but they’re inherently safer because they generate code from templates/specs and don’t need to inspect your proprietary repo unless you feed them inputs from it.

If you want, I can give you:

1. a comparison table of the best secure options, or
2. a recommendation based on your environment like GitHub/GitLab, air-gapped, AWS/Azure/GCP, or regulated industry.