Sensitive Data Remover
Find and remove common sensitive information from text before sharing it.
Your input is processed in your browser.
What to detect
Example: john@example.com becomes [EMAIL].
Enter text to check for sensitive data.
Private by design
Your data is processed directly in your browser. It is not sent to Stay Local Tools servers for processing. Because the work happens on your device, nothing you type here leaves your browser unless you choose to copy or share it yourself.
Note: the website itself still loads normal web files, and may use analytics or ads later. The promise here is about the files and text you put into these tools.
How to Use
- Paste the text you want to check.
- Choose which data types to detect.
- Click Remove Sensitive Data.
- Review the cleaned text.
- Copy the result before sharing.
Find and remove common sensitive data before sharing text
Before you paste a message, a log, or a document into a chat, forum post, or bug report, it is easy to forget it contains an email address, a phone number, or another person's details. This tool scans your text for common patterns and lets you clean them out in one step, without ever leaving your browser.
What is detected
Email addresses, phone numbers in common international and local formats, IPv4 and IPv6 addresses, web links, card-like numbers, dates, and MAC addresses. Each type can be turned on or off before you scan, so you only clean what matters for your text.
Why card-like numbers use a checksum
Real card numbers follow a simple checksum rule (the Luhn algorithm). This tool checks that rule before flagging a long number as a card, so an unrelated 16-digit ID or order number is much less likely to be flagged by mistake.
What this tool cannot do
Detection is pattern-based, not AI-based. It cannot recognize a person's name, a home address written in free text, or anything that does not follow one of the supported patterns. Automatic detection may miss some sensitive information — always read through the result yourself before sharing it.
Questions and Answers
Email addresses, phone numbers, IP addresses (IPv4 and common IPv6 forms), URLs, card-like numbers, dates and MAC addresses. Card-like numbers are checked with the same checksum real card numbers use, so a random long number is not incorrectly flagged.
No. Detection and cleaning both happen directly in your browser using local pattern matching. Your text is never sent to Stay Local Tools servers.
No. This tool uses pattern matching for specific, well-defined formats — it cannot recognize names, addresses, or personal details written in free-form sentences. Automatic detection may miss some sensitive information, so always review the result before sharing.
No. Detection uses local, deterministic pattern matching (regular expressions and a checksum for card-like numbers) — not an AI model or an external detection service. The same input always produces the same result, and nothing leaves your browser.
Replace with labels swaps each match for a tag like [EMAIL], removing the original value completely. Mask value keeps part of the value visible, like j***@example.com, so the reader can still tell what kind of information was there. Some types, like URLs and dates, do not have a reliable partial mask, so they always use a label.
Other Languages
Español
Eliminar datos sensibles
Encuentra y oculta información sensible como correos electrónicos, teléfonos o direcciones IP en un texto. El texto se procesa directamente en tu navegador y no se sube a los servidores de Stay Local Tools para el procesamiento.
Preguntas frecuentes
Correos electrónicos, números de teléfono, direcciones IP, URLs, números tipo tarjeta, fechas y direcciones MAC.
No. La detección y la limpieza ocurren directamente en tu navegador mediante coincidencia de patrones local. Tu texto nunca se envía a los servidores de Stay Local Tools.
No. Esta herramienta usa patrones para formatos concretos y bien definidos; no reconoce nombres ni direcciones escritos en frases libres. Revisa siempre el resultado antes de compartirlo.
Português (Brasil)
Remover dados sensíveis
Encontre e oculte informações sensíveis como e-mails, telefones ou endereços IP em um texto. O texto é processado diretamente no navegador e não é enviado aos servidores do Stay Local Tools para processamento.
Perguntas frequentes
E-mails, números de telefone, endereços IP, URLs, números tipo cartão, datas e endereços MAC.
Não. A detecção e a limpeza acontecem diretamente no navegador usando correspondência de padrões local. Seu texto nunca é enviado aos servidores do Stay Local Tools.
Não. Esta ferramenta usa padrões para formatos específicos e bem definidos; ela não reconhece nomes ou endereços escritos em frases livres. Sempre revise o resultado antes de compartilhar.
한국어
개인정보 마스킹
텍스트에서 이메일, 전화번호, IP 주소 같은 민감한 정보를 찾아 가릴 수 있습니다. 텍스트는 브라우저에서 직접 처리되며 Stay Local Tools 서버에 업로드되지 않습니다.
자주 묻는 질문
이메일 주소, 전화번호, IP 주소, URL, 카드 형태의 번호, 날짜, MAC 주소를 감지합니다.
아니요. 감지와 정리 모두 브라우저에서 로컬 패턴 매칭으로 처리되며 텍스트는 Stay Local Tools 서버로 전송되지 않습니다.
아니요. 이 도구는 명확한 형식의 패턴만 인식하므로 자유 문장으로 적힌 이름이나 주소는 인식하지 못할 수 있습니다. 공유하기 전에 항상 결과를 확인하세요.