
Web3.0 refers to the next-generation internet built on blockchain technology and decentralized applications (DApps). In this new paradigm, users gain full control over their data and digital identities.
Traditional Web2.0 structures have been criticized for centralizing data and content among a few major IT corporations. Web3.0 aims to resolve these centralization issues. By leveraging blockchain technology, users can exchange information securely and with high transparency.
Web3.0 also enables users to participate in new economies and communities through cryptocurrencies and tokens. This makes users active participants in the internet economy rather than passive recipients. Its decentralized architecture allows users to exchange value directly, eliminating reliance on conventional platforms.
Joining the Web3.0 ecosystem requires some preparation. This section breaks the process into five clear steps for beginners. By following them sequentially, you can enter the world of Web3.0 smoothly.
A cryptocurrency exchange is a platform for buying, selling, and transferring digital assets. To access cryptocurrencies used in the Web3.0 ecosystem, first open an account with a trusted exchange.
Choosing a Cryptocurrency Exchange
Multiple exchanges are available, each with unique features. Compare the supported cryptocurrencies, trading and transfer fees, security, and user interface. It's essential to confirm the exchange handles your desired cryptocurrency and is officially registered with the Financial Services Agency.
Applying to Open an Account
Apply via the exchange’s official website or app. After entering your email, password, and basic details, proceed to identity verification. This requires a government-issued ID, such as a driver’s license, My Number card, or passport. You may also need to submit a photo of yourself holding your ID.
Wait for Verification
Once you submit your documents, the exchange will review your application. This typically takes a few hours to a few days. When your account is approved, you’ll receive an email notification and gain full access to the exchange’s features.
After opening your account, purchase cryptocurrencies for use in Web3.0. While the process is straightforward, there are important points to consider.
Selecting Cryptocurrency to Buy
Choose assets widely used in Web3.0, such as Bitcoin (BTC) or Ethereum (ETH). Ethereum is especially common for Web3.0 services and NFT marketplaces, making it ideal for beginners. These assets work across Web3.0 services and NFTs and may appreciate in value over time.
Depositing JPY to the Exchange
Begin by depositing Japanese yen into your exchange account. Deposit options include bank transfers, online banking, or convenience stores. Fees and processing times vary—check with your exchange beforehand. Bank transfers are typically low-cost and secure, favored by many users.
Executing a Cryptocurrency Purchase
Once your deposit arrives, purchase cryptocurrency on the exchange’s platform. Specify the asset and quantity, and choose between "market order" (immediate execution at the current price) and "limit order" (execute at your chosen price). Market orders suit quick trades; limit orders are for better pricing. Once your order executes, the assets appear in your account.
MetaMask is a vital gateway to the Web3.0 ecosystem. Available as a browser extension or mobile app, it is essential for accessing Web3.0 services and NFT marketplaces. MetaMask lets you securely manage your crypto assets and NFTs and interact with decentralized applications (DApps).
Selecting the Right MetaMask Version
Choose the MetaMask version compatible with your device or browser. It’s available for major browsers—Google Chrome, Firefox, Brave, and Microsoft Edge—as well as iOS and Android mobile apps for smartphone access.
Download MetaMask from the official site (metamask.io) or your browser’s store. Always use official sources to avoid fake apps or phishing. Once installed, the MetaMask icon will appear in your browser toolbar.
Initial Setup
Open MetaMask to start the setup. Review and accept terms and privacy policy, then set a strong password. You’ll need this password to access MetaMask on your device.
The most critical step is safeguarding your seed phrase (private key). MetaMask creates a 12-word English seed phrase—the sole method to recover your wallet. Never share it. Write it down and store it securely, or engrave it on a metal backup plate. Do not save it digitally, as that increases hacking risk.
After installing and configuring MetaMask, deposit cryptocurrency to enable Web3.0 transactions and NFT purchases.
Opening and Verifying MetaMask
Open MetaMask to view your "Account" and "Network." The account section manages your assets and NFTs. The network specifies the blockchain—Ethereum Mainnet is the default, but you can switch to Polygon, Binance Smart Chain, Arbitrum, and others as needed.
Choosing a Deposit Method
There are two main deposit methods: "Direct Purchase" within MetaMask or "Transfer from External Source" (sending from an exchange).
For Direct Purchase
Click "Buy" to purchase crypto directly via third-party providers (e.g., Wyre, MoonPay) with a credit or debit card. This method is convenient but usually comes with higher fees.
For External Transfer
The most common approach is transferring from an exchange. In MetaMask, click "View Account Details" to find your wallet address (a 42-character string starting with 0x) and QR code—this is your MetaMask address.
On your exchange’s withdrawal page, enter this address and the desired amount. Always verify you are using the correct network (ERC-20 for Ethereum). Using the wrong network can result in permanent asset loss.
Confirming the Deposit
After your transfer, the transaction is processed on the blockchain. Processing time varies with network congestion (typically a few to several minutes). Check progress in MetaMask’s "Activity" tab and your balance in "Assets."
Once your assets are in MetaMask, you’re ready to use Web3.0 services. Here’s how to connect:
Accessing Web3.0 Services
Visit the Web3.0 service you want to use. Typically, a "Connect Wallet" button is visible on the homepage. Click it, select "MetaMask" from the wallet list.
Authorize MetaMask Connection
A MetaMask pop-up will request connection approval. Review the account and click "Next." Then, review the requested permissions (such as wallet address access, transaction proposals). Click "Connect" to proceed.
Start Using Web3.0 Services
Once connected, you can use all features of the Web3.0 service—join DApps, trade NFTs, and manage assets in DeFi protocols. When executing transactions, MetaMask will display transaction details and gas fees. Review and click "Confirm" to execute on the blockchain.
The Web3.0 sector is poised for substantial growth. Why get involved early, even before mainstream adoption? Here are three key benefits:
Web3.0’s most innovative advantage is user control over data and digital identity. Blockchain and DApps enable unprecedented data management models.
In Web2.0, centralized platforms managed user data, collecting personal information, browsing history, and purchases for advertising revenues. Users lacked insight and ownership over their data.
Web3.0 changes this. You own your wallet and accounts, choosing what data to share and with whom.
This greatly enhances privacy. You can refuse unnecessary data collection or share only what’s needed. Blockchain encryption reinforces security, and distributed storage eliminates single points of attack, reducing hacking risks.
You can also monetize your data—such as providing health or purchase data to companies for rewards—creating new business models.
Web3.0 lets you create value and join communities via cryptocurrencies and tokens—a major evolution from Web2.0’s currency and legal constraints.
In Web3.0, you can join diverse DApps aligned with your interests. DeFi platforms enable peer-to-peer lending and borrowing without banks. NFT marketplaces allow trading digital art and collectibles, letting creators earn revenue.
You can also participate in DAOs (Decentralized Autonomous Organizations), where token holders drive governance and project direction, enabling flatter, more democratic structures than traditional corporations. See DAO.
Early adoption offers outsized opportunities—early participants in previous internet revolutions saw major rewards. Now, early involvement in Web3.0 brings early investment opportunities and greater community influence.
Web3.0 communities unite people with shared values globally, opening doors to international networking and new ventures.
Web3.0 represents the internet’s next evolutionary leap—shifting users from passive consumers to active participants. You can express your values and lifestyle, converting them into economic value. For example, social media content can generate direct income, and in-game activity can translate to real assets.
Engaging early lets you experience emerging technologies and services firsthand, offering insights into the future of digital society.
Web3.0 knowledge and skills are increasingly valuable. Understanding blockchain, cryptocurrencies, and smart contracts is a strong career advantage. Companies seek Web3.0 talent, so early experience expands job prospects.
Early involvement also positions you to capitalize on the next technological wave. By joining at the outset, you grow with the industry and can become a recognized pioneer.
These benefits go beyond enhancing your internet experience—they open economic opportunities and new roles in the digital future.
Despite its promise, Web3.0 still faces several challenges. Understanding these is essential for risk management and anticipating future developments. Here are three core issues:
Using Web3.0 requires more advanced knowledge and preparation than traditional web services, posing a significant barrier to widespread adoption.
Web3.0 transactions need cryptocurrencies or tokens. Obtaining and managing these requires wallet setup (such as MetaMask) and secure key storage—concepts unfamiliar to many. This complexity deters mainstream users.
Cryptocurrency price volatility adds risk—asset values can swing rapidly, which is a major concern for risk-averse users.
Security is another challenge. Losing your private key means permanent asset loss. Phishing and fake sites are also risks, and there’s no password reset option—users bear full responsibility.
These combined factors discourage adoption. More intuitive interfaces and educational resources are needed for broader appeal.
Web3.0 transactions run on blockchains, requiring fees ("gas") paid to miners or validators. Gas fees fluctuate with network traffic. On popular blockchains like Ethereum, congestion can drive fees extremely high—sometimes exceeding the value of the transaction.
This raises the cost of using Web3.0 and can make small transactions impractical, especially for frequent or small-scale users.
Gas fees are also unpredictable, complicating user experience. Users must monitor network status to optimize timing.
Layer 2 solutions (Polygon, Arbitrum, Optimism) and faster blockchains (Solana, Avalanche) are being developed to lower fees, but complete solutions are not yet available.
Scalability refers to a system’s capacity to handle more transactions and users. Blockchain’s architecture limits throughput—Ethereum processes only 30–50 transactions per block, every 12–15 seconds, far less than centralized systems like Visa.
As usage grows, this leads to transaction delays or failures. During network congestion, transactions may take minutes to days to process, which is unacceptable for real-time applications.
Scalability issues also drive gas fee spikes, as users compete to prioritize their transactions.
Solutions include sharding (splitting the network for parallel processing), Layer 2 solutions (processing off-chain then finalizing on-chain), and new consensus mechanisms like Proof of Stake (PoS) for efficiency. However, these are still under development.
Solving scalability is critical for Web3.0’s widespread adoption. Without it, Web3.0 cannot become mainstream internet infrastructure.
Web3.0 is the next-generation internet based on blockchain and decentralized applications, granting users control over their data and digital identity.
Starting with Web3.0 offers many advantages: reclaiming sovereignty over your information, boosting privacy and security, participating in new value creation and global communities, and gaining essential future skills and knowledge.
However, challenges remain: high barriers to entry, required technical knowledge, cryptocurrency volatility, high gas fees, and scalability issues. Continued advancement and maturity of blockchain technology and its ecosystem are needed to overcome these hurdles.
Web3.0 is still emerging, with many projects in early stages. Yet its potential is immense. Decentralization, transparency, and user sovereignty could transform the internet’s future.
It’s important to understand Web3.0, use it responsibly, and manage risks—starting small is recommended. Firsthand experience will deepen your understanding of its true potential.
Web3.0 can make the internet more democratic, fair, and innovative. Use this guide to step into Web3.0 and enjoy the new experiences next-generation internet offers. Early adoption can help you grow with the technology and seize future opportunities.
Web3.0 is a decentralized internet built on blockchain technology. Unlike Web2.0’s centralized platforms, users own their data, identities, and content, enabling peer-to-peer interaction.
Start by creating a wallet and purchasing a small amount of cryptocurrency to practice sending and receiving. This helps you learn the basics and safely enter Web3.0.
Web3.0’s benefits include self-management of personal information, greatly reduced data leak risks with blockchain, unrestricted access to services globally, and direct business transactions without intermediaries. DeFi allows around-the-clock asset trading with lower fees.
Risks include data management vulnerabilities, off-chain storage, and high gas fees. Phishing, cryptojacking, and smart contract bugs are also concerns. Strong security measures are essential.
Web3.0 is quietly becoming social infrastructure as regulation and technology progress. Faster blockchains, zero-knowledge proofs, RWA tokenization, and AI integration are rapidly advancing. From 2026 to 2030, expect rapid transformation in enterprise and financial systems.
A wallet is a digital tool for managing cryptocurrencies and NFTs. It stores private keys and enables blockchain transactions and DApp connections, including DeFi and NFT marketplaces. There are self-custodial and third-party custodial types.
Blockchain is the technical foundation of Web3.0. Web3.0 leverages blockchain for enhanced user data management and privacy.
Web3.0 offers many ways to earn—including NFT trading, DeFi staking, DAO participation rewards, and asset sales in the metaverse. Blockchain-based revenue models are expanding rapidly.











