Memo Lab
Build a memo and check it before it goes out. See how many bytes your text takes, whether an ID fits, and what a valid hash looks like.
1. Memo Text (28-byte UTF-8)
ValidStellar restricts text memos to exactly 28 bytes in UTF-8. Non-ASCII characters (accents, umlauts, symbols) consume 2 to 4 bytes each.
13 / 28 bytes
13 characters
UTF-8 Hex:
49 6e 76 6f 69 63 65 2d 31 30 34 39 32
Test samples:
2. Memo ID (64-bit Unsigned Integer)
Valid uint64A memo ID is an unsigned 64-bit integer, from 0 to 18,446,744,073,709,551,615. Negatives, decimals and anything larger fail.
Decimal:
109283741
Hexadecimal:
0x0683899d
BigInt Range:
Within valid range
Test samples:
3. Memo Hash & Memo Return (32-byte Cryptographic Digest)
Valid 32-byte HashUsed for cryptographic proofs, bridge transfers, and payment returns. Stellar expects exactly 32 bytes (64 hex characters or 44 base64 characters).
Presets: