Seed phrase recovery
BIP39 seed phrase recovery (partial mnemonic)
We recover missing or unclear words in mnemonic phrases of different standard lengths (typically 12 or 24 words; also 15 / 18 / 21 when your wallet used them), fix wrong or unknown word order, and work across BIP39 wordlists and wallet families. Heavy combinatorial search and checksum checks run offline on isolated hardware after scope and contract. Optional BIP39 passphrase (“25th word”) cases are scoped when you have partial rules. Nothing is uploaded to this site — start with a description, not the full phrase.
What we help with
- One or more unknown word positions in a BIP39 phrase when you know the length (12 / 15 / 18 / 21 / 24) and as much of the rest as possible.
- Words are known but order is wrong or you are unsure which slot a word belongs in (permutation-style cases within agreed limits).
- Substitutions from the same wordlist — similar BIP39 words, typos, handwriting misreads — when we can narrow candidates.
- Optional passphrase cases (sometimes called a 25th word / extension word) when you remember part of it or a pattern, not the full secret in chat.
- When you can share a checksum-valid partial phrase or tie candidates to a known address, xpub, or derivation path (after agreement), we use that to cut the search space.
Protocols, wordlists, and wallets
Most wallets rely on BIP39 with English or localized wordlists (e.g. Russian, Spanish, Portuguese). Some products add SLIP39 Shamir shares or vendor-specific dictionaries — we align the technical scope with your wallet and backup format before any large search. You never need to paste a full seed into this page; word count, language, and gap positions are enough for a first assessment.
Ethics and scope: we only work on phrases that belong to you and that you can explain. We do not “recover” seeds from leaks, screenshots of strangers’ backups, or third-party wallets. If the material did not originate with you, we will decline.
Describe your mnemonic case
We typically reply within one business day, often faster. Send your draft by email or Telegram using the contacts on our home or contact page.
How the process works
- Initial review: word count, which positions are unknown, wordlist language, and whether an address/xpub can narrow candidates.
- Agreement on scope, confidentiality, pricing (usually success-based), and a secure channel for sensitive material.
- Offline search and verification on isolated hardware; you confirm access on your side before any success fee.
Same standards as our other services
Transparent scoping, no cold outreach or upfront “guaranteed” recovery spam model, success-based fee after you verify the result.
BIP39 mnemonic recovery — common questions
Can you recover a seed phrase with missing words?
Sometimes, when enough words and order constraints remain and the target derivation path is known. Feasibility depends on how many words are unknown and whether a passphrase is involved.
Which wordlists do you support?
Standard BIP39 English and other published wordlists used by major wallets. We confirm the list that matches your backup before any heavy search.
What if I am unsure about word order?
Order ambiguity expands the search space. Share what you know (fixed positions, swapped pairs, partial notes) so we can model realistic permutations instead of brute-forcing all orderings blindly.
Do you need my passphrase (25th word)?
If your wallet used a BIP39 passphrase, we need to know that up front. Without it, recovered mnemonics may derive different addresses than you expect.
Can you recover from only an address?
No — a mnemonic search requires structural clues (known words, checksum constraints, wallet type). An address alone does not define the seed phrase space.