Our own project: software we built and operate ourselves.
Paste Shield
It strips names, emails, keys and passwords out of text before you paste it into ChatGPT. Everything runs in your browser, on a language model (LLM) driven by the graphics card you already own. No text ever reaches a server.
Every paste into ChatGPT is a potential leak
You paste a snippet of an email, a log, or a config into a model, and you easily leave names, addresses, account numbers, API keys and passwords behind. Tools that clean text on a server only move the leak somewhere else. So we built a filter that removes this data before it leaves the browser tab: no install, no account, no text sent to an external API.
Three detection layers, all on device
Data with no fixed format: names, emails, addresses, phones, dates, account numbers. Understands sentence context, runs in a Web Worker (@huggingface/transformers), WASM as a fallback.
Structured data: API keys, tokens, JWTs, private keys, IBANs, cards, passwords. Runs instantly, before the model even loads, because a leaked key is catastrophic.
Words only you know are sensitive: client names, project codenames. The model can't infer them.
Hits from all three layers merge into one list, with no confidence cutoff: a miss is a leak, so over-redaction is the safe side of the error. The model runs fail-closed: a load error blocks copying until you reload the model.
Zero requests, not a claim, an architecture
network requests carrying your text: it never leaves your browser, so there is nothing on a server to steal.
lines of code: the entire codebase fits in a single security audit.
a model load error blocks copying: even a failure never lets unprotected text out.
Cross-origin isolation headers (COOP/COEP/CORP) required for the model runtime are set in next.config.ts and vercel.json. The app ships no analytics and no telemetry of any kind.
Check these numbers yourself in the live demoEvery choice has a reason
Got a nagging problem? Describe it, I'll code the rest.
One sentence is enough to start. Tell me what's bothering you. Within 48 hours I come back with a clear answer: can it be done, and at what fixed price.