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HeimWall

Catch secrets before they leak into Cursor & Claude

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What HeimWall does

HeimWall catches leaked secrets, credentials, and PII the moment they're about to reach AI coding assistants like Cursor, Claude Code, and Copilot, without blocking your workflow or uploading your prompts.

It's a lightweight macOS app that runs entirely on-device: 47 hand-written detection rules flag leaks in real time, in milliseconds. Your prompts never leave your Mac. No content stored, no account, no signup.

Free for individual engineers. Built so you stop pasting live API keys into AI tools without changing how you work.

Next up: a team dashboard that shows security leads leak trends across the org without ever exposing what anyone actually typed. Managers see signal, not content. We're onboarding design partners now, come say hi in the comments

HeimWall pricing

HeimWall is free to use, with no paid version listed.

Is HeimWall legit?

Uneed can't vouch for HeimWall, but here is what it can check. Read the reviews and the site's terms before you pay or share personal data.

  • Maker: published by atacinargenc, who has a public profile on Uneed.
  • Launched on Uneed on Jul 19, 2026, and still listed.
  • Community: Upvoted by 15 people, 1 review, 1 award: #2 Product of the Day.
  • Website: heimwall.ai, Domain Rating 20 (DataForSEO).

What Uneed does not check: payments, refunds, or how HeimWall handles your data.

What users say 1

1 review

An average shows from 3 ratings.

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  • Ata Cinar Genc gets notified, and replied to 1 of 1 reviews.
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Omri
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Omri

Jul 20, 2026

The on-device approach here is smart - most devs are copy-pasting raw API keys and database passwords into Claude/Copilot without thinking about it, and it's happening thousands of times a day. The fact that you catch this in milliseconds without uploading the prompts is the privacy+security win that's been missing. Hand-written detection rules instead of ML is interesting too - that probably means way less false positives than neural approaches would give you.

For the team dashboard roadmap, the "show signal not content" angle is exactly right for security leads. One question: how does this scale beyond Cursor/Claude/Copilot? What happens when someone uses Aider with Claude, or when custom LLM integrations start proliferating? And are there enterprise deployment options for teams that can't use the cloud dashboard?

Ata Cinar Genc's avatar
Ata Cinar GencMaker

Two questions that actually matter for deploying past one laptop.

Coverage: HeimWall watches the surfaces where prompts are entered and where data leaves, not per-tool integrations, for instance: Aider, a custom LLM setup, whatever ships next month gets caught at the same layer instead of needing a new connector each time. Chasing tools one-by-one would be a treadmill; that's the design choice that avoids it. So, HeimWall can catch secrets no matter the platform its written at.

Deployment: yes, a self-hosted/on-prem option for the team layer is on the roadmap, and it's the consistent path since detection already runs fully on-device. It's early access now, so if you've got a team with hard no-cloud requirements, reach out and let's talk specifics.

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Ata Cinar Genc's avatar
atacinargenc
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Questions about HeimWall

HeimWall is a development product listed on Uneed, available for free. It's tagged with AI Coding, Security. See the best AI Coding products for related options.

What is HeimWall?

HeimWall is catch secrets before they leak into Cursor & Claude.

Is HeimWall legit?

Uneed can't vouch for HeimWall. What it can check: HeimWall was launched on Uneed on Jul 19, 2026 by atacinargenc and is still listed, upvoted by 15 people and reviewed by 1 user. Uneed does not check payments, refunds or data handling, so read the reviews and the site's terms before you pay or share personal data.

Is HeimWall free?

Yes, HeimWall is free to use.

What are alternatives to HeimWall?

Discover similar ai coding, security, development products in the Uneed directory.

What category does HeimWall belong to?

HeimWall is listed under Development on Uneed.

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