iancoleman/bip39
A web tool for converting BIP39 mnemonic codes observed · 2026-08-28
Health v2 · maintenance only
23/100
- Activity 0
- Release rhythm 8
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 4367
- days_rel: n/a
- days_push: 858
- n_releases_24m: 0
Adoption not part of the score
4300 stars · 1624 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
A web-based tool for converting BIP39 mnemonic seed phrases into addresses and private keys across many cryptocurrencies. It can be used online or as a standalone offline HTML file for air-gapped security.
Use cases
- convert a BIP39 mnemonic phrase to addresses and private keys
- generate a random 12-24 word seed phrase offline
- derive wallet addresses from a recovery phrase with custom derivation paths
- export private keys from a mnemonic to import into a wallet
- recover wallet addresses from a seed phrase with a passphrase
When to choose
- you need to inspect or derive keys from a BIP39 seed phrase
- you want an offline, air-gapped tool for wallet recovery
- you need multi-coin address derivation from one mnemonic
When to avoid
- you need a programmatic library to embed in your own code rather than a UI tool
- you need a full wallet application for transacting
- handling high-value keys where even offline browser tools carry unacceptable risk
Facets
application · maturity stable
cryptography developer-tools cli security developer-tools browser cross-platform bip39 mnemonic wallet bitcoin offline-tool seed-phrase cryptocurrency web-server
2 sources
- readme: https://github.com/iancoleman/bip39 · fetched 2026-08-28 · e58271086abb
- homepage: https://iancoleman.io/bip39/ · fetched 2026-08-29 · 72a16973fed4
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| iancoleman/bip39 | main | 23 |
For agents
markdown · JSON · MCP: product_card(name="iancoleman/bip39")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem