Blockchain Load Generator
Stress-test RPC endpoints and analyze network latency on Testnets.
EDUCATIONAL & TESTNET USE ONLY
This tool is designed for stress-testing RPC endpoints on blockchain testnets (like Sepolia or Goerli). Do not use this on Mainnet as it will consume real funds and may be flagged as spam. The developer assumes no responsibility for misuse.
RPC Configuration
Live Metrics
Network Activity Log
What is a Blockchain Load Generator?
The Blockchain Load Generator is a specialized stress-testing tool designed for developers and DevOps engineers to benchmark RPC endpoints, indexers, and blockchain node infrastructure. It simulates real-world traffic patterns by generating and broadcasting a configurable stream of transactions to a target network. This tool is essential for validating the performance, latency, and reliability of your blockchain infrastructure before deploying production decentralized applications (dApps).
Blockchain load testing is the process of simulating high traffic on a blockchain network to evaluate its performance, stability, and scalability. By generating a controlled volume of transactions, developers can verify how well critical infrastructure—such as RPC nodes, validators, and data indexers—handles congestion. This helps identify bottlenecks like rate limits, network latency propagation issues, or database constraints in indexing services.
This tool allows you to connect to any EVM-compatible network (via HTTP/HTTPS RPC), configure a test wallet, and define a specific number of transactions to broadcast sequentially or in bursts. It provides real-time logs with transaction hashes and status updates, allowing you to monitor the immediate feedback from your RPC provider. The live metrics dashboard tracks sent, failed, and pending transactions to give you an instant overview of the test performance.
WARNING: This tool is a powerful utility that must be used ethically. It is strictly intended for use on Testnets (like Sepolia, Goerli, Holesky) or local development networks (like Hardhat or Anvil). Never use this tool on Mainnet unless you are a miner/validator specifically testing your own block production with your own funds, as it will consume real ETH for gas fees and could be flagged as a denial-of-service attack by public RPC providers.
1How to Use
- Prepare a Testnet Wallet: Ensure you have a dedicated wallet with sufficient testnet ETH (e.g., SepoliaETH) to cover gas fees for all transactions.
- Configure RPC Endpoint: Enter a valid HTTP/HTTPS RPC URL for the network you wish to test (e.g., Alchemy, Infura, or a local node).
- Set Test Parameters: Enter the Private Key of your test wallet, the amount of ETH to send per transaction (can be 0), and the total Load Count (number of txs).
- Initiate Load Test: Click the 'Start Load Test' button to begin the sequence. The tool will generate random destination addresses for each transaction.
- Monitor Real-Time Logs: Watch the 'Network Activity Log' for transaction hashes (success) or error messages (failures) as they happen.
- Analyze Metrics: Check the 'Live Metrics' counters to see the ratio of successful broadcasts vs. failures.
- Stop Test: You can manually stop the test at any time by clicking the 'Stop' button.
★Key Features
- RPC Stress Testing: Validate the request/second capacity and rate limits of your node infrastructure.
- Indexer Verification: Ensure your indexers can handle bursts of new blocks and events without lagging.
- Latency Analysis: Observe the time delay between broadcast and mempool acceptance via the timestamped logs.
- Real-Time Visualization: Watch transactions flow with a live log console and status dashboard.
- EVM Compatibility: Works with any Ethereum Virtual Machine chain (Ethereum, Polygon, BSC, Avalanche, etc.).
- Safety First: Client-side execution means your private keys never leave your browser (but always use test keys!).
- Detailed Error Reporting: distinctive error categorization helps you distinguish between network errors, nonce issues, or gas failures.