MC2 is an AI data redaction tool focused on removing sensitive information from files before they are shared. It emphasizes local processing so that confidential documents and PII never have to leave your machine.
–無料枠には Claude Code が含まれず、長いコンテキストのチャットでは5時間のローリングメッセージ上限にすぐ達する
–Opus 5.5 や Claude Code に大きく依存する Pro ユーザー（月額20ドル）は5時間のローリング枠を使い切り、Max（月額100ドル）が必要になることがある
MC2
MC2 is an AI data redaction tool focused on removing sensitive information from files before they are shared. It emphasizes local processing so that confidential documents and PII never have to leave your machine.
AI-assisted data redaction
Detect and remove sensitive information such as personally identifiable information from files and documents.
Local processing
Runs on your own machine so confidential documents do not need to be uploaded to an external service to be redacted.
Compliance-focused workflow
Supports privacy and compliance workflows where files must be shareable without exposing protected data.
File and document redaction
Handles document and file redaction, letting you clean up records before sharing, archiving, or transferring them.
強み・メリット
+Local processing keeps sensitive files on your own machine
+Targets data privacy and compliance use cases directly
+Handles redaction of PII and confidential document content
+Relevant across legal, HR, finance, and security workflows
制約・デメリット
–Site certificate currently shows a common-name mismatch, which can cause browser warnings
–A locally run redaction tool depends on your own machine's processing power for large files
–Automated redaction still warrants a human review step for compliance-critical documents
–Feature and export limits are not publicly documented in detail
無料・オープンソースUndetectable AI is a web platform that scans text for AI fingerprints and rewrites flagged passages so they read like natural human writing. It bundles an AI detector, an AI humanizer and a growing set of media authenticity tools in a single dashboard.
無料・オープンソースUndetectable AI is a web platform that scans text for AI fingerprints and rewrites flagged passages so they read like natural human writing. It bundles an AI detector, an AI humanizer and a growing set of media authenticity tools in a single dashboard.
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