Privacy & Compliance

On-Device NER Redactor

All tools

Redact PII with regex plus optional on-device NER - nothing uploaded. - runs entirely in your browser. Free, fast and private.

How it works

Four simple steps

1

Paste text to sanitize

Prompts, logs, tickets, or JSON blobs work.

2

Run regex redaction

Emails, phones, JWTs, keys, and cards are masked instantly offline.

3

Optionally load local NER

Download Transformers.js weights once for person/org/location entities.

4

Keep the reversible map

Token maps stay in your browser for safe LLM round-trips.

On-Device NER Redactor

About On-Device NER Redactor

On-Device NER Redactor is a free privacy & compliance utility on OneDevToolkit. Redact PII with regex plus optional on-device NER - nothing uploaded. It runs in your browser for this session - use the workspace on this page to try it.

Need a related step? Open the Privacy & Compliance hub at /privacy-tools/ or the <a href="/blog/">blog</a> for longer workflows.

Features

Lightning fast

Processes data instantly with no server round-trips.

100% private

Your data never leaves your browser. Nothing is uploaded.

No installation

Works in any modern browser. Nothing to download or install.

Free forever

No limits, no sign-up, no credit card required.

Cross-platform

Works on desktop, tablet and mobile devices.

Dark & light mode

Beautiful in both themes. Your preference is saved.

Keyboard shortcut

Ctrl Enter - Run tool

Use cases

Everyday private work

Open On-Device NER Redactor when you need a quick result without uploading data to a third-party site.

On any modern browser

No install required - bookmark the tool and return anytime.

Privacy-first by default

Client-side processing keeps inputs on your device for core OneDevToolkit tools.

Instructions

How to use this tool

FAQ

Frequently asked questions

See all FAQs

Answers for this tool. For site-wide help, open the FAQ hub.

Generators and hashers run locally. Still, never paste production secrets into any site if your security policy forbids it.

Results live in page memory until you leave or clear. Favourites/history do not save password fields unless you explicitly store them in Vault.

When applicable, tools rely on Web Crypto or well-known libraries. Read on-page notes for exact algorithms (SHA-256, bcrypt-style notes, etc.).

After load, crypto helpers typically work offline. Confirm network independence for your threat model.

Browser CSPRNG (crypto.getRandomValues) powers secure generators when the tool states so.

Treat generated secrets like passwords - share only through approved password managers, never chat apps.

OneDevToolkit aids technical workflows; it is not a certification product. See Compliance for processing model language.

Always check you are on your real OneDevToolkit domain before entering sensitive material.

Contact us via Contact with responsible-disclosure details - do not include live production secrets.

View more FAQs

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