dApp Meaning in Crypto, Explained Simply

All terms

All terms Address Block Block time Blockchain Confirmation Gas Gwei Hash Mempool Node Private key Public key Seed phrase Transaction Wallet All time high (ATH)Bear market Bull market Candlestick Capitulation Chart patterns Dollar cost averaging (DCA)Funding rate Leverage Limit order Liquidation Liquidity Market cap Market order Order book Position sizing Risk management Slippage Spread Support and resistance Trend Volatility Volume Whale AMM Bridge CEX DAO DeFi Depeg DEX Flash loan Governance token Impermanent loss Liquidity pool LP token Oracle Perpetual (perp)Restaking RWA Stablecoin TVL Wrapped token Yield farming Airdrop Alpha Ape in Bagholder Degen Diamond hands Floor price FOMO FUD GM HODL Maxi Meme coin Moon NFT NGMI Normie Paper hands PFP Rekt Shill Snapshot WAGMI Address poisoning Cold storage Custody Due diligence (DYOR)Dusting attack Exit scam Front running Hardware wallet Honeypot Hot wallet MEV Multisig Phishing Pump and dump Rug pull Sandwich attack Self custody SIM swap Token approval Two factor authentication Wallet drainer Wash trading Account abstraction Appchain Block explorer Circulating and total supply Consensus Data availability EVM Faucet Finality Fork Fully diluted valuation (FDV)Gas war Halving Layer 1 Layer 2 Layer 3 Mainnet Mining Name service Optimistic rollup Proof of stake Proof of work Rollup Sharding Sidechain Slashing Smart contract Staking Testnet Token standard Tokenomics Validator Zero knowledge proof ZK rollup Arweave and the permaweb Composability Cross chain messaging dApp Decentralized identity (DID)DePIN GameFi and play to earn Indexer Interoperability IPFS Onchain and offchain Session keys Smart account SocialFi Soulbound token Sybil resistance Token gating Web2 vs Web3 Web3

Updated 2026-08-303 min readDefinition

Definition

A decentralized application, where the backend is a smart contract rather than a company server.

A dApp has a normal looking front end and an unusual back end. Instead of a company database and API, the logic and state live in smart contracts on a blockchain that anyone can call directly.

The practical consequence is that the front end is a convenience, not a gatekeeper. If the website disappears, the contracts keep running and anyone can build a new interface to them.

In practice

Uniswap the website could be taken offline tomorrow and Uniswap the protocol would keep working. Several alternative front ends already exist.

Where to go next

Smart contractCode deployed on a blockchain that runs exactly as written.Web3The idea of an internet where users own their accounts, data and assets.DeFiFinancial services built as open smart contracts instead of companies.DEXA decentralized exchange, where you trade directly from your own wallet.

More web3 terms

Arweave and the permaweb Composability Cross chain messaging DePIN Decentralized identity (DID)GameFi and play to earn IPFS Indexer Interoperability Onchain and offchain Session keys Smart account

Back to the full encyclopedia

Want this explained out loud?

Some of these land faster in conversation than in writing. Sessions are one to one and you can ask anything, including the things that feel too obvious to ask.

Book a session Browse the encyclopedia