Testnets

Join a Hedera Testnet

Overview

Hedera test networks provide developers access to a free testing environment for Hedera network services. Testnets simulate the exact development environment as you would expect for mainnet. This includes transaction fees, throttles, available services, etc. To create a Hedera Testnet or Previewnet account, you can visit the Hedera Developer Portal.

Once your application has been built and tested in this test environment, you can expect to migrate your decentralized application (dApp) to mainnet without any changes.

Test Networks	Description
Testnet	Testnet runs the same code as the Hedera Mainnet, designed to provide a pre-production environment for developers about to move to mainnet. You can find compatible SDKs here.
Previewnet	Code that is under development by the Hedera team and likely to be used in an upcoming release designed to give developers early exposure to features coming down the pipe. Updates to the network are made frequently. There is no guarantee an SDK will readily support the up-and-coming features. Note: Updates to this network are triggered by a new release and are frequent. These updates will not be reflected on the status page.

Network Service	Availability
Cryptocurrency	Limited
Consensus Service	Limited
File Service	Limited
Smart Contract Service	Limited
Token Service	Limited

Test Network Resets

The mirror node and consensus node test network are scheduled to be reset periodically. Scheduled resets are communicated to the ecosystem with anticipation so developers can plan ahead. During a reset:

What Gets Reset

• All account balances and transaction history

• Smart contract state and deployed contracts

• Consensus node ledger state

• Topic and token configurations

What Remains

• Your account's public/private key pairs

• Access to the Hedera Developer Portal
• SDK configurations and application code

Scheduled Reset Process

Resets follow a structured communication and execution process:

Pre-Reset (2-4 weeks before)

• Subscribe to notifications on the Hedera Status Page
• Community notification through official channels

• Developer preparation period begins

During Reset

• Network temporarily unavailable

• Consensus nodes cleared and reinitialized

• Mirror node data archived

Post-Reset (within 24 hours)

• Network restored with fresh state

• New account IDs available via Developer Portal

• Mirror node historical data accessible for 2 weeks

Preparing for Resets

To minimize disruption during scheduled resets:

• Export any test data you need to preserve before the reset

• Schedule development activities around announced reset dates

• Obtain new testnet account IDs from the Hedera Developer Portal after each reset
• Mirror Node operators can reference the instructions here to set up your mirror node

  • GCP GCS and AWS S3 buckets: hedera-testnet-streams-2023-01

❓ If you have any questions or concerns, please connect with us via Discord.

Reset History

Date	Status
February 1, 2024	Completed
April 25, 2024	Skipped
July 25, 2024	Skipped
Oct 31, 2024	Skipped

📊 Historical data: Previous resets occurred on January 26, 2023 and July 27, 2023.

Test Network Throttles

Limited Support

Transactions are currently throttled for testnets. You will receive a BUSY response if the number of transactions submitted to the network exceeds the threshold value.

Network Request Type	Throttle (tps)
Cryptocurrency Transactions	AccountCreateTransaction: 2 tps TransferTransaction (inc. tokens): 10,000 tps Other: 10,000 tps
Consensus Transactions	TopicCreateTransaction: 5 tps Other: 10,000 tps
Token Transactions	TokenMintTransaction: 125 TPS for fungible mint 50 TPS for NFT mint TokenAssociateTransaction: 100 tps TransferTransaction (inc. tokens): 10,000 tps Other: 3,000 tps
Schedule Transactions	ScheduleSignTransaction: 100 tps ScheduleCreateTransaction: 100 tps
File Transactions	10 tps
Smart Contract Transactions	ContractExecuteTransaction: 350 tps ContractCreateTransaction: 350 tps
Queries (per node)	AccountBalanceQuery: 1000 tps ContractGetInfo: 700 tps ContractGetBytecode: 700 tps ContractCallLocal: 700 tps FileGetInfo: 700 tps FileGetContents: 700 tps Other: 10,000 tps
Receipts	unlimited (no throttle)