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<p>A block explorer is a search engine for blockchains. Their function is to provide <a href="https://www.helius.dev/historical-data"><span style="text-decoration: underline">complete historical data</span></a> for every block, address, program, and transaction that has ever occurred on-chain.</p><p>Block explorers are essential tools for developers and everyday users. </p><p>For developers, blockchain explorers assist with debugging <a href="https://orbmarkets.io/programs" rel="noopener noreferrer" target="_blank">Solana programs</a>, understanding how to compose with other on-chain programs via IDLs, and inspecting inner instructions. </p><p>For general Solana users, explorers help explain transactions, confirm transaction statuses, display wallet balances, <a href="https://orbmarkets.io/validators" rel="noopener noreferrer" target="_blank">research validators</a>, and audit transaction histories.</p><p>This article highlights the most popular Solana block explorers and outlines a few unique features of each. </p><p>By the end of the article, you will know which explorers are available on Solana and how to choose the best one for your specific needs.</p><h2><strong>Orb</strong></h2><p><a href="[object Object]">Launched</a> on October 29th, 2025, Orb is a <a href="https://orbmarkets.io/"><span style="text-decoration: underline">free Solana block explorer</span></a> built by Helius that emphasizes speed and readability.</p><p>Built on Helius’s brand new <a href="https://www.helius.dev/blog/introducing-gettransactionsforaddress"><span style="text-decoration: underline">Solana archival system</span></a> and the <code>getTransactionsForAddress</code> RPC method, Orb’s archival RPC calls are 2-10x faster than Google BigTable queries, and power many unique filtering and sorting options.</p><p>For everyday users, Orb’s AI explanations provide clear, human-readable descriptions of what’s happening on-chain by combining three AI models fine-tuned on Solana data and documentation.</p><p>For developers, Orb provides detail-rich features like verified program IDLs and inner instructions, plus powerful sorting options like reverse search, and flexible filters that let you narrow transactions by address.</p><p>Orb supports all three Solana clusters: <strong>Solana Mainnet-beta</strong>, <strong>Solana Devnet</strong>, and <strong>Solana Testnet</strong>.</p><p><strong>Orb’s features include:</strong></p><ol class="list-number"><li value=1><strong>Fast lookups</strong> — uses SoTA archival system & custom RPC methods</li><li value=2><strong>Reverse search</strong> — get the oldest results first and filter by any date</li><li value=3><strong>Explain with AI</strong> — summarize txns in human-readable formats</li><li value=4><strong>Filters</strong> — filter by time, status, address, tokens, programs, and spam</li><li value=5><strong>Blocks</strong> — see leaders, transactions, CUs, programs, and rewards </li><li value=6><strong>Transactions</strong> — instructions, logs, balances, parsed/raw txn details</li><li value=7><strong>Tokens</strong> — price, charts, metadata, holders, markets, and history</li><li value=8><strong>Programs</strong> — history, IDLs, verification, security.txt, update authority</li><li value=9><strong>Wallets</strong> — history, tokens, NFTs, stake accounts, txn heatmaps</li><li value=10><strong>Validators</strong> — stake, APYs, vote info, delinquency, validator info</li></ol><img src="/_next/image?url=/api/media/file/solana-transaction-detail-page-on-the-orb-explorer.jpg&w=3840&q=90" alt="The Orb block explorer showing the Solana transaction details of a USDC swap for Ore" /><p>To learn more about Orb, read our block explorer tutorials:</p><ul class="list-bullet"><li value=1><a href="https://www.helius.dev/docs/orb/explore-transactions">Exploring Solana Transactions</a></li><li value=2><a href="https://www.helius.dev/docs/orb/explore-tokens">Exploring Solana Tokens and Addresses</a></li><li value=3><a href="https://www.helius.dev/docs/orb/explore-blocks">Finding and Analyzing Solana Blocks</a></li><li value=4><a href="https://www.helius.dev/docs/orb/explore-programs">Looking Up Solana Program IDs</a></li></ul><h2><strong>Solana Explorer</strong></h2><p>The canonically named Solana Explorer was the first official block explorer built by Solana Labs. While newer explorers have been released since, it is still widely used today. The Solana Explorer is now maintained by the Solana Foundation (<a href="https://github.com/solana-foundation/explorer" rel="noopener noreferrer" target="_blank"><span style="text-decoration: underline">GitHub</span></a>).</p><p><strong>Unique block explorer features include:</strong></p><ol class="list-number"><li value=1><strong>Feature gates</strong> — see feature gates, activation epochs, and SIMDs (Solana Improvement Documents)</li><li value=2><strong>Transaction inspector</strong> — paste a base58/base64 encoded message or Squads vault transaction account to see txn details</li><li value=3><strong>SOL token supply overview</strong> — quickly view the total supply, circulating supply, and non-circulating supply of $SOL</li></ol><img src="/_next/image?url=/api/media/file/solana-block-explorer-feature-gate-activation-history.jpg&w=3840&q=90" alt="Solana Block Explorer feature gate activation history page" /><p>Website: <strong>explorer.solana.com</strong></p><h2><strong>Solscan</strong></h2><p>Solscan was initially launched in 2021 and later acquired by Etherscan in early 2024. Because Solana’s on-chain data was notoriously difficult to read in the network’s early days, Solscan quickly became the dominant explorer by shipping advanced developer tools, clearer transaction summaries, and more helpful dashboards.</p><p>Today, Solscan is widely integrated into app frontends, wallets, and developer tools across the Solana ecosystem.</p><p><strong>Key features include:</strong></p><ol class="list-number"><li value=1><strong>Fee tracker dashboard</strong> — minimum, average, and max priority fees</li><li value=2><strong>Stablecoin dashboard</strong> — mcap, holders, transactions, and volumes</li><li value=3><strong>Launchpad</strong> <strong>dashboard</strong> — tokens by launchpad, launches, creators </li><li value=4><strong>DeFi overviews </strong>— volume/transactions for top programs like Orca</li><li value=5><strong>Whale tracking </strong>— track transfers, trades, stake accounts, and more</li></ol><img src="/_next/image?url=/api/media/file/solana-stablecoin-dashboard-solscan.jpg&w=3840&q=90" alt="Solscan's stablecoin dashboard" /><p>Website: <strong>solscan.io</strong></p><h2><strong>OKX Link</strong></h2><p>OKX Link is a multi-chain block explorer built by OKX, the cryptocurrency exchange, wallet, and web3 platform, with chain support for Solana. </p><p>In addition to typical block explorer features, OKX Link includes a dashboard for top Solana tokens, top NFT collections, and supports over 12 languages, including Chinese, Korean, and Japanese.</p><img src="/_next/image?url=/api/media/file/okx-multichain-explorer-with-solana-support.jpg&w=3840&q=90" alt="OKX multichain blockchain explorer with Solana support" /><p>Website: <strong>oklink.com/solana</strong></p><h2><strong>SolanaFM</strong></h2><p>Launched in 2021, SolanaFM was a user-friendly block explorer with advanced features, including transaction diagram flows, network statistics, and helpful summaries. </p><p>SolanaFM was acquired by Jupiter, the Solana DEX aggregator, in September 2024; however, today, the explorer is largely unmaintained. </p><img src="/_next/image?url=/api/media/file/solana-fm-unresponsive-block-explorer.jpg&w=3840&q=90" alt="SolanaFM is no longer supported or maintained" /><h2>Dissonance</h2><p>The Dissonance block explorer by Harmonic is a new explorer on Solana that provides unique insights such as fee distributions by block order, transaction breakdowns by programs, and all relevant data on a per-transaction level such as fees,
