Privacy & Security

Privacy and security tools that compute everything locally with the browser’s Web Crypto API — hash text and files, encrypt and decrypt with a passphrase, decode X.509 certificates and CSRs, generate strong passwords and time-based 2FA codes, and redact sensitive data. Your keys, passwords and files are never sent to a server.

11 Privacy & Security tools

• JWT Local Inspector — Decode & verify tokens entirely offline — zero network calls.
• PII & Secret Redactor — Mask emails, phones, SSNs, cards & API keys before sharing — all in your browser.
• Password & Passphrase Gen — Cryptographically secure secrets, generated fully offline.
• Hash & Checksum Generator — MD5, SHA-1/256/512 & CRC32 for text or files, with verify.
• File & Text Encryptor — AES-256-GCM encrypt/decrypt with a passphrase — keys never leave the tab.
• Office Metadata Stripper — Remove author, company & edit-history metadata from Word, Excel & PowerPoint files.
• TOTP / 2FA Authenticator — Generate time-based 2FA codes from a secret — seeds never leave your device.
• Password Strength Meter — Check how strong a password really is — estimated locally, never sent anywhere.
• Certificate & CSR Decoder — Decode X.509 certificates & CSRs locally — subject, issuer, SANs, validity.
• Steganography — Hide Text in Images — Hide a secret message inside an image’s pixels (LSB), or reveal one — entirely on your device.
• Self-Signed Certificate Generator — Generate an RSA key + self-signed X.509 cert (with SANs) and export PEM / DER / .p12 — keys stay local.