Solana PDA Calculator

Common templates

Load a common PDA pattern, then swap in your own program ID and keys. Each template is share-linkable, so tutorials can deep-link straight into the exact derivation.

What PDAs are

Program Derived Addresses are deterministic addresses derived from a program ID plus ordered seed bytes. Unlike normal wallet addresses, PDAs are intentionally off curve, which lets the runtime hand signing authority to the owning program via invoke_signed.

Why the canonical bump matters

Some seed combinations can pair with multiple bump values before the runtime lands on an off-curve address. The canonical bump is the bump returned by findProgramAddressSync. Using that exact bump everywhere keeps your clients, tests, and on-chain program aligned.

This page stays strict on purpose: the main flow shows only the canonical bump, because that is the value most developers should persist and verify.

Seed limits and gotchas

• Solana supports at most 16 seeds per PDA derivation.
• Each individual seed can be at most 32 bytes.
• u64_le here is explicit little-endian encoding for counters and index-style seeds.
• Seed order matters. Reordering rows changes the byte stream and usually changes the PDA.
• Seed boundaries are not length-prefixed. ["ab", "cd"] and ["abcd"] hash the same concatenated bytes, so avoid ambiguous seed layouts.

Copyable code snippets

These snippets reflect the current builder exactly, including seed order, typed encoding, and the canonical bump derivation flow.

@solana/web3.js

import { PublicKey } from '@solana/web3.js';

const programId = new PublicKey("KjG9Ac9ckWdSeTmjX65nY6wttstnY4XzGtUD9s1mxCz");
const seed1 = new TextEncoder().encode("global");

const [pda, bump] = PublicKey.findProgramAddressSync([seed1], programId);
console.log(pda.toBase58(), bump);

Anchor / Rust-style usage

use solana_program::pubkey::Pubkey;
use std::str::FromStr;

let program_id = Pubkey::from_str("KjG9Ac9ckWdSeTmjX65nY6wttstnY4XzGtUD9s1mxCz")?;
let seed_1 = b"global";
let seeds: &[&[u8]] = &[
    seed_1.as_ref(),
];
let (pda, bump) = Pubkey::find_program_address(seeds, &program_id);