SwiftBIP39 is a Swift Package Manager library for BIP-39 mnemonic generation, validation, and seed derivation on Apple platforms.

This package is intentionally named for real search terms developers use:

• Swift BIP39
• Swift mnemonic generator
• Swift seed phrase library
• BIP-39 recovery phrase package
• iOS mnemonic / wallet phrase generator

• Generate valid 12, 15, 18, 21, and 24-word BIP-39 English mnemonics
• Convert entropy bytes into deterministic mnemonic phrases
• Parse and validate mnemonic phrases with checksum verification
• Derive the standard 64-byte BIP-39 seed with optional passphrase
• Bundle the canonical 2048-word BIP-39 English word list
• Avoid third-party Swift package dependencies

• Swift 6.2+
• iOS 15+
• macOS 12+
• tvOS 15+
• watchOS 8+

In Xcode:

1. Open your app project.
2. Go to File > Add Package Dependencies...
3. Paste:

https://github.com/devdasx/swift-bip39-mnemonic.git

4. Add the SwiftBIP39 library to your target.

Or in Package.swift:

dependencies: [
    .package(url: "https://github.com/devdasx/swift-bip39-mnemonic.git", from: "1.0.2")
]

import SwiftBIP39

let mnemonic = try BIP39.generate(strength: .bits128)
let phrase = mnemonic.phrase

let parsed = try BIP39.parse(phrase)
let isValid = BIP39.validate(phrase)
let seed = BIP39.seed(from: parsed, passphrase: "optional-passphrase")

Generate a mnemonic:

let mnemonic12 = try BIP39.generate(strength: .bits128)
let mnemonic24 = try BIP39.generate(strength: .bits256)

Build a mnemonic from known entropy:

let entropy = Data([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0])
let mnemonic = try BIP39.mnemonic(from: entropy)

Validate a recovery phrase:

let isValid = BIP39.validate(phrase)

Derive a BIP-39 seed:

let seed = try BIP39.seed(from: phrase, passphrase: "TREZOR")

This package is tested against the official English BIP-39 reference vectors plus repeated random-generation validation.

Current checks include:

• all 24 official English test vectors
• checksum failure detection
• generation across supported strengths
• repeated random mnemonic generation + validation

Repository SEO is handled through:

• a direct standard-based package name: SwiftBIP39
• a GitHub repository name targeting the primary query: swift-bip39-mnemonic
• README wording that includes BIP-39, mnemonic, seed phrase, recovery phrase, Swift, iOS, and wallet integration terms
• GitHub topics for Swift, BIP39, mnemonic, crypto wallet, and seed phrase searches

MIT