NullID public guide
Redact sensitive information locally
Text Redaction detects and masks sensitive spans in pasted text. It is meant for user-reviewed cleanup of logs, notes, snippets, and structured text before sharing.
What it detects
Built-in detectors cover email addresses, phone numbers, IP addresses, IDs, IBANs, Luhn-valid card numbers, AWS-style keys, GitHub and Slack tokens, bearer tokens, private key blocks, and optional regional identifier rule sets.
Workflow
- Paste text into Redaction.
- Choose full or partial masking and severity filtering.
- Enable or disable detector groups and optional regional rules.
- Add local custom regex rules when the material has project-specific patterns.
- Review highlights, apply redaction, then copy or download the result.
How it differs from other tools
Redaction changes sensitive spans in text. Sanitization applies repeatable cleanup policies for logs. Secret Scanner flags likely credentials and can send exact findings into Redaction.
Limitations
- Pattern matching can miss unusual formats and can false-positive.
- Custom regex rules must complete safely before output is committed.
- Clipboard auto-clear is best-effort and cannot control other clipboard managers.
- Downloads and copied output remain on your device after export.