Enabling Continuous Testing for Web3
Spin up an EVM Sandbox to test smart contracts in real-world conditions, collaborate effortlessly with your team, and debug smoothly without disrupting your workflow.
Real-World Testing
for Secure DApps
Simulate Mainnet conditions with forking and even services like account abstraction and price feeds with plugins.
Fully Managed to
Get Out of Your Way
Easily spin up nodes for the most popular EVM-based protocols. Extend your environment with the push of a button.
Persistent State so
Nothing Gets Lost
BuildBear Sandboxes are persistent and can even be forked from each other, so you can rest assured your state is safe.
Cloud Enabled, Private & Shareable EVM Sandboxes
With our Cloud Enabled Sandbox, your team can seamlessly collaborate on projects within a secure and shared environment. This enables you to deploy your dApp in your private sandbox with your Frontend and Backend integrated, thus, letting you test your dApp with your CXOs in one deploy.
160K+
Total Sandboxes
30 Days
Average Sandbox Age
Sandbox
Secure & Cloud Enabled
EVM Sandbox
Faucet
Unrestricted, Free Native &
ERC20 Tokens
Explorer
Hassle-Free Exploration &
Transactions Debugging
Extend Sandboxes with
Powerful Plugins
Your dApp is dependent on Gelato Web3 Functions, Chainlink VRF, SAFE SDK (many more)? BuildBear Sandbox supports the testing of your dApp with these on-demand plugins.
Blockscout
Blockchain explorer for Ethereum based network and a tool for inspecting and analyzing EVM based blockchains.
Gelato Web3 Functions
Gelato’s web3 tasks automation lets you trigger transactions based on off-chain events.
Pimlico
Use Pimlico’s bundler to incorporate account abstraction into your testing environment.
Sentio Tracer / Debugger
Quickly find the source of errors with transaction tracing and debugging.
Solidity Scan
Understand your contract’s vulnerabilities with smart contract scanning and a full vulnerability report for each contract.
ChainLink VRF
Pull in accurate price data and randomness from Chainlink
Supported Networks
Create a Forked Sandbox from any of the following EVM and EVM-compatible chains
The BuildBear team has provided us with excellent service, and we are deeply grateful for their efforts. They have been highly responsive and promptly resolved the issues we were facing.
Buildbear is an indispensable tool for us at Treehouse. The public faucet and explorer makes collaborative testing a breeze. Dipesh and Buildbear team are responsive, any concerns we have are resolved in a timely manner. Try Buildbear and enhance your smart contract development process.
As one of the engineers building on DeFi, Buildbear has improved me/our organization smart contract dev work productivity in shipping products to market. We have actually a pain-point that from my understanding Buildbear is in a good position to alleviate. Pretty sure other DeFi products have the same pain point.
BuildBear is a game-changer for web3 dApp testing. Its intuitive interface and customizable options streamline the setup of testing networks, saving time and resources. With BuildBear, we can confidently iterate and identify issues early, thanks to its reliability. It's an indispensable tool in our development toolkit.
Our game has a bunch of Smart Contracts and I was having trouble deploying everything. With BuildBear I was able to fork the gnosis chain and deploy our whole stack on the first try!
