Your trusted crypto addresses, everywhere.
littlenote is a universal, cross-chain address book. Save an address once, give it a name you recognize, and stop worrying about where your crypto is going.
How it works
Save once
Paste any address and give it a name you recognize. littlenote detects the chain automatically.
Find instantly
Search by name, tag, or any fragment of the address. Your whole book is one keystroke away.
Use safely
Chain-aware checks make sure an EVM address is never mistaken for a Solana one — before funds move.
Understands the chains you already use — not just strings of characters.
- EVM
- Bitcoin
- Solana
- Tron
- XRP
- Litecoin
- Dogecoin
- Cosmos
- Cardano
Sending to the wrong network is expensive.
littlenote makes it hard to do.
A normal address book answers “what address did I save?”. littlenote answers “which of my addresses is right, here?” — because it knows that Main Account is an EVM address and your Vault lives on Bitcoin.
Live detection
0x71C7656EC7ab88b098defB751B7401B5f6d8976FEVM detected
“This address does not look like a Bitcoin address.” — caught before you save it, not after you send to it.
Simple pricing
Start free. Upgrade when your book outgrows it.
Free
$0 / month
- 100 saved addresses
- Names, tags & notes
- Automatic chain detection
- Search & one-click copy
Pro
$3 / month
- Unlimited addresses
- Chrome extension (coming soon)
- Sync across devices
- Priority access to new features
Questions, answered
- Does littlenote hold my crypto?
- No. littlenote never holds funds or private keys. It is an address book: a single trusted place for the addresses you send to, with names you actually recognize.
- Which blockchains does it support?
- littlenote detects EVM chains (Ethereum, Base, Polygon, Arbitrum and others), Bitcoin, Solana, Tron, XRP, Litecoin, Dogecoin, Cosmos and Cardano address formats, and lets you save any other address manually.
- How does chain detection work?
- Every address format has a recognizable structure. littlenote validates the address as you paste it, labels it with the matching chain, and refuses mismatches — so a Bitcoin label can never end up on an Ethereum address.
- Can I delete my data?
- Yes, completely. Settings includes a one-click account deletion that permanently erases your profile and every saved address, tag and note, in line with GDPR’s right to erasure.