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What Is Liquidity Lock?

Definition

A liquidity lock permanently prevents anyone from removing tokens from a DEX liquidity pool — achieved by burning LP tokens or sending them to a dead address.

Locking liquidity means making it impossible for anyone — including the token creator — to withdraw the tokens from a DEX pool. This is the strongest anti-rug-pull measure available.

  • Burn LP tokens — send LP tokens to a dead address (0x000...dead) or use the SPL burn instruction. Permanent and irreversible. The liquidity stays in the pool forever.
  • Time-lock LP tokens — lock LP tokens in a smart contract that releases them after a set date. Less permanent but still builds trust during the lock period.

CoinDevTools supports the burn method — the most permanent form of liquidity lock. On Solana, the "Burn & Earn" tool locks your Raydium CPMM position permanently while giving you a transferable Fee Key NFT that continues earning trading fees. On Ethereum/Base, the burn liquidity tool destroys LP tokens permanently.

For token buyers, checking if liquidity is locked is the #1 safety check. Use block explorers to verify LP tokens are burned — this is publicly visible on-chain.

Related Guides

How to Create a TokenHow to Add LiquidityHow to Burn Tokens

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Lock Liquidity

Related Terms

LP Tokens (Liquidity Provider Tokens)
LP tokens represent your share of a liquidity pool. They can be redeemed to withdraw your deposited assets or burned to permanently lock the liquidity.
Liquidity Pool
A liquidity pool is a pair of tokens locked in a smart contract that enables decentralized trading on automated market makers (AMMs) like Raydium and Uniswap.
Rug Pull
A rug pull is a type of crypto scam where a token creator removes all liquidity from a DEX pool, crashes the price to zero, and disappears with the funds.
Token Burn
Token burning is the permanent, irreversible destruction of cryptocurrency tokens — reducing the circulating supply and making remaining tokens scarcer.