What does making a token immutable do?

It permanently prevents any future change to the token's on-chain metadata — the name, symbol, and logo URI are frozen. Buyers see an immutable token as one whose identity cannot be swapped out from under them.

Is making a token immutable the same as revoking mint authority?

No. Immutability locks the metadata (name, symbol, logo). Revoking the mint authority fixes the supply. Revoking the freeze authority stops freezing. They are three independent actions; a fully locked-down token does all three.

Can I edit my token after making it immutable?

No. Once the update authority is null the metadata can never be changed. If you might still need to fix the name, symbol or logo, use the update token metadata tool first and only make it immutable when the details are final.

Solana SPL token · no code

Make a Solana token immutable

Lock your token's identity forever: set the metadata update authority to null so the name, symbol and logo can never be changed. Paste your mint address, connect your wallet, and sign one transaction.

UpdateMetadataAccountV2: update authority → null, isMutable → false
Name, symbol and logo become permanent and unchangeable
Proves your token's identity can't be swapped out later
One transaction, signed in your own wallet

What "immutable" means for an SPL token

An SPL token's name, symbol and logo live in a Metaplex metadata account controlled by an update authority. While that authority exists, whoever holds it can rewrite the metadata — swap the logo, rename the token, point the URI somewhere new. Making the token immutable issues an UpdateMetadataAccountV2 instruction that sets the update authority to null and isMutable to false, so the identity is frozen for good.

This tool performs only that one action on the mint you paste, signed by your own wallet. It never takes custody of the token and never changes the supply or freeze settings.

Immutable, fixed supply, and unfreezable are three different things

These protections are often confused. Each is separate:

Immutable metadata — the name, symbol and logo can't change. This tool.
Fixed supply — no more can be minted. Revoke mint authority.
Unfreezable — holders can't be frozen. Revoke freeze authority.

Need to fix a typo or update the logo before locking it? Do that first with the update token metadata tool — after this action the metadata is permanent.

This is permanent. An immutable token's metadata can never be edited again. Make sure the name, symbol and logo are exactly right before you sign.

Make token immutable: FAQ

How do I make a Solana token immutable?

Paste the mint address, connect the wallet holding the update authority, and sign one transaction. The tool sets the update authority to null and isMutable to false, locking the metadata.

Can I edit the token afterward?

No. Once immutable, the name, symbol and logo can never change. Use the update token metadata tool first if anything still needs fixing.

Is this the same as revoking mint authority?

No. Immutability locks the metadata; revoking mint authority fixes the supply. They are independent actions.

What does it cost?

A small service fee plus the Solana network fee, charged only when the action succeeds. We don't keep the fee — see how this tool's fees benefit compassSOL stakers.

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Make a Solana token immutable

What "immutable" means for an SPL token

Immutable, fixed supply, and unfreezable are three different things