21Relay
Bitcoin Utilities

21Relay utility

Stuck Transaction Adviser

Check a public transaction ID, compare its fee rate with current estimates and understand whether waiting, RBF or CPFP may be worth discussing with your wallet.

Detail level

Guided mode keeps the decision focused. Advanced mode reveals extra assumptions.

Privacy notice: The transaction ID is sent to 21Relay and mempool.space for a public lookup. For stronger privacy, inspect it using your own node.

Keep in mind: This tool reads public blockchain and mempool data only. It cannot know which wallet controls an input, change output or child output.

Public transaction lookup

A transaction ID is public information. Never paste a seed phrase, private key or wallet backup.

Transaction advice

Enter a transaction ID to see its public status and fee options.

Methodology, data and limits
  • This tool reads public blockchain and mempool data only. It cannot know which wallet controls an input, change output or child output.
  • RBF signalling does not guarantee your wallet can create a replacement; CPFP requires control of a suitable unspent output.
  • Mempools and miner policies differ. Priority labels are educational comparisons, not confirmation guarantees.

Related utilities

Fee Estimator

Estimate on-chain transaction fees from current fee-rate recommendations.

Open tool

Confirmation Time Calculator

Understand probabilistic confirmation windows without exact-time promises.

Open tool

Address and Transaction Decoder

Explain public Bitcoin addresses and transactions without connecting a wallet.

Open tool

Connected workflow

Understand a delayed payment

1. Stuck Transaction Adviser
2. Fee Estimator
3. Confirmation Time Calculator

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21Relay utilities are educational planning tools, not financial, tax or investment advice. Verify important decisions independently.

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