How to Build a Web3 App on Flow: A Complete Guide
Oct 8, 2025
Build the next killer app
Flow provides the tools and infrastructure to build and scale apps faster and better than anywhere else.
Powering apps from brands and companies across the world
Forte is Live on Testnet, and Forte Hacks is Now Open!
Forte is Live on Testnet and Forte Hacks has $250k in Prizes for Developers! Learn more.
Messari Report: State of Flow Q2 2025
Messari released their latest report, highlighting Flow's growth across a range of verticals, such as 600%+ increase in Flow EVM transactions, 46% Quarter-over-Quarter growth for Flow TVL, and a range of other metrics all trending upwards.
Flow’s path to Permissionless Validators: Implementing Proof of Possession
Moving Towards Permissionless Participation: Flow’s Implementation of Proof of Possession
Data tells the tale
Over The Last 12 Months The Flow Community Has Been Surging Upward
#1
choice for developers at EthGlobal hackathons
600%+
increase in DeFi TVL
1000%
increase in smart contracts deployed
by app builders
For app Builders
Cadence
Purpose-built programming language for crypto apps & assets
A modern smart contract language built from the lessons of building with Solidity.
EVM Equivalent
Run Solidity contracts for less than 1 cent, less than 1 second blocks & MEV-resistant
Anything from Ethereum Mainnet runs on Flow EVM, and can be extended with Cadence.
Flow is a computer that anyone can use, everyone can trust, and no one can shut down.
Unique multi-role architecture ensures high transaction speed, near-instant finality, and MEV-resistance, enabling responsive, consumer-scale crypto applications.
BLOCK TIME
0.8 s
A Flow transaction uses less energy than a dozen Google searches.
ENERGY USAGE (1 YEAR)
0.18GWH
Flow unique multi-node architecture is specifically engineered to handle mainstream adoption, ensuring your apps can scale seamlessly without sacrificing performance or decentralization.
COST PER TRANSACTION
$0.000179
Flow is a protocol with integrated Random Number, Gasless & Bundled Transactions, MEV Resilience, and EVM Equivalence.
A NEW RANDOM NUMBER EVERY
0.8 s
Fast
Unique multi-role architecture ensures high transaction speed, near-instant finality, and MEV-resistance, enabling responsive, consumer-scale crypto applications.
BLOCK TIME
0.8s
Sustainable
A Flow transaction uses less energy than a dozen Google searches.
ENERGY USAGE (1 YEAR)
0.18GWH
Scalable
Flow unique multi-node architecture is specifically engineered to handle mainstream adoption, ensuring your apps can scale seamlessly without sacrificing performance or decentralization.
COST PER TRANSACTION
$0.000179
Built for apps
Flow is a protocol with integrated Random Number, Gasless & Bundled Transactions, MEV Resilience, and EVM Equivalence.
A NEW RANDOM NUMBER EVERY
0.8 s
