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Mamorukun

Mask sensitive details before sending them to AI

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A free Chrome extension that checks text locally before you send it to ChatGPT, Gemini or Copilot. Review and mask detected personal or confidential details, and inspect supported file attachments. Designed for Japanese workflows. No account or API key.

PH · launched Sep 15, 2026 · 2 upvotes (top 26%) · 0 views

Niche: chatgpt plugins and extensions · 89 launches, 4 in the last 7 days ▼ -64% · Explore this niche →

Category and tags
  • Horizontal
  • Compliance & governance
  • Prosumer
  • Not AI
  • Commercial product
  • Chrome Extensions
  • Privacy

Visit website ↗ Source listing ↗

More like this: all 89 launches in chatgpt plugins and extensions →

Could you build this?

Yes It is a standard Chrome content-script extension that intercepts input fields on specific AI sites and runs local client-side regex or token matching for Japanese PII.

Competitors

Other products that read as similar to this one : 278 launches clear the similarity bar, closest 8 shown.

Attention rank: #94 of 279 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 319 days after the earliest competitor.

  • Clean before AI · ph · 2026-10-06 · 2 upvotes · similarity 0.54
  • NYMETRA · ph · 2026-10-29 · 2 upvotes · similarity 0.49
  • EraseAI Firewall · ph · 2026-11-03 · 1 upvotes · similarity 0.48
  • maskgate · github · 2026-09-09 · 268 upvotes · similarity 0.48
  • mcosec.ai · ph · 2026-10-24 · 2 upvotes · similarity 0.47
  • carrierscan · ph · 2026-10-27 · 1 upvotes · similarity 0.47
  • NanoPilot AI · ph · 2026-09-30 · 1 upvotes · similarity 0.45
  • TokenTrim · ph · 2026-09-16 · 10 upvotes · similarity 0.45

Related data

The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.