This product was not featured by Product Hunt yet. It will not be visible on their landing page and won't be ranked (cannot win product of the day regardless of upvotes).
Product upvotes vs the next 3
Waiting for data. Loading
Product comments vs the next 3
Waiting for data. Loading
Product upvote speed vs the next 3
Waiting for data. Loading
Product upvotes and comments
Waiting for data. Loading
Product vs the next 3
Loading
NullOrigin
Strip AI watermarks and C2PA metadata with a local proxy.
NullOrigin is an open-source local proxy that intercepts and neutralizes AI watermarks and provenance metadata in transit. Simply point your OpenAI, Anthropic, or Gemini SDKs to localhost. NullOrigin pipes streaming text through a local SLM (via Ollama) to mathematically destroy statistical watermarks like KGW on the fly. It also strips C2PA/EXIF metadata from images and scans generated code for Trojan Source vulnerabilities. Built for researchers and privacy-focused developers.
Hey Product Hunt! 👋 I’m excited to share NullOrigin with you today.
As AI platforms increasingly embed invisible watermarks, statistical token trackers, and C2PA metadata into their outputs, I wanted a way to evaluate and neutralize these provenance signals locally. So, I built NullOrigin.
🛡️ What is it?
It’s an open-source, local reverse proxy. You simply point your standard OpenAI, Anthropic, or Gemini SDKs to localhost:8080.
⚙️ How it works:
When it intercepts a text stream, it pipes the payload through a local SLM (like Llama 3.2 via Ollama). Because your local model lacks the upstream vendor's specific cryptographic seed, the span-constrained paraphrasing mathematically resets the token distribution, destroying statistical watermarks (like KGW) on the fly.
It also:
Strips signed C2PA and EXIF metadata from multimodal images.
Purges zero-width characters and cross-script homoglyphs.
Scans generated code for Trojan Source vulnerabilities (CVE-2021-42574).
🔬 Why I built it:
Watermarking schemes are security claims, and security claims are only meaningful once they are tested. NullOrigin is released as an Apache-2.0 research artifact to help developers and academics measure actual robustness. (I am completely transparent about its mathematical limitations in the README—no snake oil here!)
I’d love to hear your thoughts, answer any questions about the architecture (especially the fun challenge of intercepting and rewriting SSE streaming chunks in transit), and get your feedback.
Check out the GitHub repo and let me know what you think!
About NullOrigin on Product Hunt
“Strip AI watermarks and C2PA metadata with a local proxy.”
NullOrigin was submitted on Product Hunt and earned 2 upvotes and 1 comments, placing #93 on the daily leaderboard. NullOrigin is an open-source local proxy that intercepts and neutralizes AI watermarks and provenance metadata in transit. Simply point your OpenAI, Anthropic, or Gemini SDKs to localhost. NullOrigin pipes streaming text through a local SLM (via Ollama) to mathematically destroy statistical watermarks like KGW on the fly. It also strips C2PA/EXIF metadata from images and scans generated code for Trojan Source vulnerabilities. Built for researchers and privacy-focused developers.
On the analytics side, NullOrigin competes within Open Source, Developer Tools, Artificial Intelligence and GitHub — topics that collectively have 1.1M followers on Product Hunt. The dashboard above tracks how NullOrigin performed against the three products that launched closest to it on the same day.
Who hunted NullOrigin?
NullOrigin was hunted by Rakib. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of NullOrigin including community comment highlights and product details, visit the product overview.
Rakib