String Obfuscator
Partially mask tokens, API keys, IBANs, or sensitive text securely before sharing.
Processed locally in your browser. Data is never sent to any server.
About String Obfuscation
Why partial masking is critical for code snippets, screenshots, and troubleshooting logs.
When sharing configuration templates, documentation, or debugging logs, exposing full production credentials or personal banking details like IBANs creates major security vulnerabilities. Obfuscating tokens while preserving leading and trailing indicator characters allows team members to verify token formats without exposing the secret key.
Token & Key Safety
Safely redact API tokens, OAuth bearer strings, and database passwords before pasting into issue trackers.
Flexible Masking Bounds
Customize precisely how many leading and trailing characters remain visible for validation purposes.
100% Browser-Based
All transformations execute entirely on your machine via JavaScript. Your sensitive strings never leave your device.
Custom Mask Characters
Choose alternative symbols or custom characters to replace the default asterisks in your redacted output.
One-Click Copy
Easily copy your obfuscated text directly to your clipboard with clean visual confirmation feedback.
Dynamic Updates
Outputs update in real-time as you type changes or adjust character preservation settings.