Front end
React, Next.js and Vue for clear product screens.
React · Next.js · Vue
dApp development UK
Decentralised applications people can actually use.
Carlton Digital Co. designs blockchain applications around real user tasks. Wallet connection, smart contract actions, live data and polished front ends work together in one considered product.
Your users expect clear screens and secure transactions. We build both.
Testnet-first delivery
Responsive interfaces
Northstar Finance
Connected
Portfolio value
£48,260
Wallet
0x71...A42C
MetaMask
Pending action
Supply deposit
Awaiting approval
The build underneath
Our dApp technology stack
The tools depend on your users, chain and operating model. We choose a practical stack, then document every integration.
Networks
Ethereum, Polygon and BNB Smart Chain integration.
EVM-ready delivery
Wallets
A measured connection flow for desktop and mobile.
ethers.js · wagmi
Storage
Content storage with clear ownership and retrieval rules.
IPFS · Arweave
Indexing
Query blockchain activity without making users wait.
The Graph · APIs
Prototype view
Confirm your deposit
WalletMetaMask
Amount1,250 USDC
Polygon
Network fee£0.18
Total1,250 USDC
Designed for the person holding the wallet
Web3 users need certainty at every click.
A dApp should show what a transaction does before a wallet prompt appears. We keep network, amount, fee and confirmation state visible.
- Connection flowsSupport MetaMask, WalletConnect and Coinbase Wallet without confusing account states.
- Transaction feedbackShow signing, pending, confirmed and failed states in plain language.
- Accessible screensKeyboard access, readable contrast and responsive layouts belong in the first design.
Where the product fits
dApps for practical business work
A chain is useful when it improves a process. We start with the process.
Fintech
Lending, trading and payment applications with clear balances, permissions and settlement steps.
DeFi dApp developmentSupply chain
Track product events, assign permissions and give partners a shared record they can inspect.
Track and traceEnergy
Build interfaces for renewable certificate trading, asset records and verified energy data.
Energy platformsEnterprise
Test a focused blockchain use case before committing to a wider internal rollout.
Proof-of-concept pilotsConnect the systems you already have
Blockchain integration and APIs
Your dApp may need data from a finance platform, CRM, ERP or physical device. We define the boundary, protect the calls and make events useful.
Existing systemsConnect operational software to on-chain records.
Custom APIsQuery balances, ownership and activity for your interface.
OraclesBring approved external data into contract decisions.
Event listenersTrigger webhooks when relevant chain activity occurs.
A clear delivery path
From idea to launch
Each stage leaves a usable decision behind. You know what is being built and why.
01 / Discovery
Map the users and the rules
We turn goals into user stories, wallet roles, data needs and a focused first release.
02 / Product design
Make each action understandable
Wireframes and interface decisions cover connection, signing, confirmations and recovery states.
03 / Development
Build the interface and chain logic
Front-end components, APIs and smart contract interactions are developed against agreed acceptance criteria.
04 / Testnet testing
Test the moments that matter
We check wallet states, failed calls, permissions, responsive layouts and transaction edge cases.
05 / Mainnet launch
Release with an operating plan
Deployment, monitoring notes and handover materials give your team a firm basis for the next release.
Build your dApp with confidence.
Talk to us about your application idea, the users it needs to serve and the blockchain work already in place.