Recover in Your Browser

The recovery page is one HTML file. You download it, open it in your browser, and it does the rest on your device: it unlocks your backup, finds the address you sent to, shows its balances, and sends the funds where you choose. Nothing is installed, and your backup, password and keys never leave the browser tab.

Check the file first

The page decrypts your wallet, so make sure it's the real one before you open it. Its SHA-256 must match the one above exactly.

• Mac: open Terminal and run shasum -a 256 ~/Downloads/fiber-recovery-v*.html
• Windows: open PowerShell and run Get-FileHash $HOME\Downloads\fiber-recovery-v*.html
• Linux: run sha256sum ~/Downloads/fiber-recovery-v*.html

If the result is different, delete the file and don't open it.

Each version keeps the same file name and hash forever. The page is built from the open-source decoder in github.com/fiberevm/cli, so anyone can rebuild it and compare.

Open it

• On a computer: open the file in Chrome, Safari, Firefox or Edge. A private or incognito window is safer, because browser extensions can read any page you open.
• On Android: open the file from your Files app's Downloads and choose Chrome. Don't choose "HTML Viewer". It can't run the page.
• On iPhone or iPad: use a computer or an Android phone instead. iOS opens downloaded HTML files as a preview, and the page can't run there.

The page needs no internet connection to unlock your backup and find your address. It only goes online when you check balances or send, and then it talks only to the network you pick.

Recover your funds

1. Unlock your backup. Choose your .fiberseed file and enter the password you set when you exported it. On a phone this can take a few seconds.
2. Find the address you sent to. The page lists the first 1,000 addresses in your backup. Type a few characters of yours, from the start or the end, or paste the whole address. A pasted address that matches opens straight away. Not sure which one you used? Tap Check to see the balances of your first 20 accounts on one network. The network's server sees those addresses together, which is why the page only does this when you ask.
3. Pick the network the funds are on, such as opBNB. The page shows the balance of each token it knows. If yours isn't listed, open Token not listed? and paste the token's contract address from the block explorer.
4. Add gas if you need it. Moving a token costs a small fee in the network's gas coin, such as BNB on opBNB. If the address has none, the page says so and shows the address to send it to. The smallest withdrawal an exchange allows is plenty. Then tap Refresh.
5. Send. Choose what to send, enter the amount or tap Max, and paste the destination address. If it's an exchange, copy that exchange's deposit address for this exact network. Review the details, tick the confirmation, and tap Sign and send.
6. Close the tab when the transaction shows Confirmed. The page links to it on the block explorer.

Prefer your own wallet? On the account screen, tap Export private key to import the key into a wallet such as MetaMask instead.

Networks

The page has opBNB, BNB Smart Chain, OP Mainnet, Avalanche C-Chain, Linea and Scroll built in. For any other EVM network, choose Other network and enter its chain ID and an https RPC address. The page checks that the RPC answers for that chain before it uses it.

Balances and transactions go through that network's public RPC server. It can see the addresses you check and your IP address, never your keys.

Troubleshooting