Office Tools
1 toolPDF Tools
5 tools- PDF Protect
PDF Protect — Encrypt your PDF document with a user password and customize editing, printing, and copying permissions entirely in your browser.
- PDF Unlock
PDF Unlock — Remove password protection from your encrypted PDF documents. Simply enter the password, verify the file contents, and download a decrypted...
- PDF Password Protect
Encrypt, unlock, or optimize a PDF with password protection — 256-bit AES encryption, decrypt, or linearize for fast web loading. All client-side, no upload.
- PDF Redaction
Visually redact PDF content by drawing black rectangles over sensitive areas. Multiple rectangles, apply to all pages. All local, no upload.
- PDF Text Watermark
Stamp text watermarks onto PDF pages: tile or center diagonal. Adjust font, opacity, rotation, color. Preview before download. Private, no upload.
Developer Tools
2 tools- File Checksum
Calculate file or text hashes online — MD5, SHA-1, SHA-256, SHA-512. Verify file integrity by comparing a known checksum. Free, in your browser.
- HMAC Generator
Generate and verify HMAC signatures using SHA-1, SHA-256, SHA-384, or SHA-512. Output in hex or base64. Verify authenticity of signed messages. All local, no server uploads.
Encoding
2 tools- PGP Encrypt / Decrypt
Encrypt and decrypt messages with PGP right in your browser. Generate RSA 4096 key pairs. 100% client-side — keys never leave your device.
- OTP Generator (TOTP)
Generate TOTP one-time passwords from a secret key. Compatible with Google Authenticator, Authy, and other 2FA apps. Client-side.