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Encoding & Hashing

A focused toolbox for 2FA, passwords, QR codes, hashing and everyday development tasks. Sensitive values stay in your browser.

3 toolsProcessed on this deviceNo account

Encoding & Hashing

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Processed on this device
Encoding & Hashing

Base64 Encode / Decode

Convert UTF-8 text to and from standard or URL-safe Base64.

CODEC STREAMUTF-8 ⇄ B64
SFranKey➔U0ZyYW5LZXk=
RFC 4648URL-SAFE
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Processed on this device
Encoding & Hashing

Hash Generator

Create SHA-256, SHA-384 or SHA-512 hashes locally.

CRYPTOGRAPHIC HASHSHA-256
✓ e3b0c442 98fc1c14...
INTEGRITY CHECKMATCH 100%
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Processed on this device
Encoding & Hashing

File Checksum

Compare a local file digest with a publisher checksum.

FILE DIGEST42 MB
📦 release.tar.gzMATCH ✓
BINARY HASHSHA-256 VERIFIED
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2FA & OTP2 toolsPasswords2 toolsQR Code2 toolsDeveloper4 tools
All Systems Nominal·WebCrypto CSPRNG Sandbox
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SFranKeySFranKeySecurity & Developer ToolsSecurity and developer tools

Private-first tools for security and development.

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Security & Design

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Ecosystem & Support

Sfrankie Email (Temp Mail) ↗Request a toolReport a bugGitHub Repository ↗sfrankey.bond
Sfrankie EmailTemp Mail

Disposable temporary inbox service. Receive OTP verification codes without spam.

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