Data Sanitizer is a free, browser-based tool built for developers and support teams who need to share a log file or error message without leaking personal or sensitive data.
Because everything runs locally, the original, unredacted text never leaves your device.
How to use the Data Sanitizer
- Paste the log or text you want to clean into the input box.
- Toggle which categories of data to redact.
- The sanitized version appears instantly below.
- Copy or download the redacted text before sharing it.
Why use FreeToolsNets's Data Sanitizer?
- 100% free, with no usage limits and no account required.
- Everything runs locally in your browser — nothing you type is uploaded or stored on a server.
- Works on desktop, tablet and mobile in any modern browser.
- No installation, no plugins, and no ads blocking the tool itself.
- Part of FreeToolsNets's Security & Crypto Tools collection.
Frequently asked questions
Is my original text uploaded anywhere?
No — every redaction happens locally in your browser with JavaScript.
What does redacted data look like?
Matches are replaced with clear placeholders like [REDACTED_EMAIL] or [REDACTED_IP], so the structure of the text is preserved.
Will this catch every possible token format?
It uses broad pattern matching for common formats; always review sensitive output manually before sharing.
Is this tool free to use?
Yes, completely free on FreeToolsNets, with no sign-up and no limits.
Is my data sent to a server?
No. Everything runs locally in your browser using JavaScript — nothing you enter is uploaded anywhere.
Does it work on mobile?
Yes, the widget is fully responsive and works on phones, tablets and desktops.