待翻译：Show HN: DataZen – a local-first client for cross-database workflows

AI 服务暂时不可用，以下为来源正文，待恢复后补全翻译。

DataZen — AI-Powered Database Workspace for Developers Free & Open Source The AI workspace for your databases. Query, debug, analyze and automate your databases with an AI teammate — locally, from one lightweight desktop app. Download DataZen — Free View on GitHub Free · Open source · macOS / Windows / Linux macOS note: If you see "damaged or cannot verify", run xattr -cr /Applications/DataZen.app then right-click → Open. Your database data stays local — AI requests go only to the provider you configure. DataZen Works with PostgreSQL MySQL SQLite Redis MongoDB ClickHouse + plugin drivers <15 MBinstaller size <1 scold startup 4+databases built-in $0free & open source The core difference Your database, with an AI teammate Not a chatbot bolted onto a grid — every AI capability lives inside the real query workflow. Ask your database 💬“Show users inactive for 30 days.” 🤖AI reads your schema and writes the SQL ▶️Executes instantly — review, tweak or save Natural-language SQL → Fix broken SQL in one click ✕column "usres" does not exist 🩺AI explains the cause in plain language ✓Corrected SQL generated, ready to run Error diagnosis → Know why queries are slow 🐢EXPLAIN shows a seq scan over 12M rows 🔍AI pinpoints the bottleneck in the plan 📈Suggests an index — verify before applying EXPLAIN analysis → Who it's for Built for developers who work with databases every day Primary Backend & full-stack developers SQL editor, EXPLAIN analysis, schema browsing, ER diagrams, backups — the daily driver for real database work. Secondary AI-assisted developers NL2SQL, chat sidebar, and an MCP server that plugs your databases into Claude, Cursor and other agents. Also great Data-oriented technical users Explore tables, chart any result set, and automate recurring reports — without leaving your desktop. MCP Server & Client Give your AI agents access to your databases DataZen ships with a built-in MCP server: expose queries, schema inspection, EXPLAIN and even whole workflows as tools for the agents you already use. Works with Claude Desktop, Cursor, Cline and any MCP-compatible client Doubles as an MCP client — connect external MCP servers inside DataZen Headless mode (--mcp-stdio) for servers, scripts and CI Your credentials stay in the OS keychain — agents never see them raw Learn about MCP → Claude / Cursor / AI Agentasks in natural language → MCPModel Context Protocol → DataZentools · schemas · workflows → PostgreSQL · MySQL · Redis · MongoDB …your existing databases Workflows Turn repetitive database work into one reusable flow Generate a daily sales report automatically: 🐘 PostgreSQLquery today's orders → 🐬 MySQLjoin customer data → 🤖 AIsummarize findings → 📤 Reportexported & ready to share Queries, AI steps, conditions and loops — explore Workflows → Charts Query → chart → insight Every result set becomes a chart in one click. Smart recommendations pick line, bar, pie, scatter or area based on your data — export PNG / SVG when it looks right. No chart builder to learn — it just renders your result Type hints from column names and value ranges Pairs perfectly with NL2SQL: ask, run, see the trend Explore charts → Compare What traditional clients don't give you DataZen Traditional database clients Built-in AI — NL2SQL, error diagnosis, EXPLAIN reading ✓ — MCP server for AI agents ✓ — Cross-database workflows ✓ — Local-first — no account, no cloud service ✓ Varies Charts on any result set ✓ Varies Installer size < 15 MB Often 100 MB+ Price Free · GPLv3 Often paid Comparison is indicative of common patterns in established database clients, as of 2026. Why DataZen Lightweight, private and open by design ⚡ Under 15 MB Tiny installer, near-instant startup — far lighter than typical heavy clients. 🛡️ Your data stays local DataZen operates no cloud database service. Credentials are AES-encrypted in the OS keychain. 🔌 Bring your own AI provider OpenAI, Anthropic, DeepSeek or a custom endpoint — you choose exactly where requests go. 👤 No account required Download, install, connect. Nothing to sign up for, nothing phoning home. 🧩 Extensible drivers PostgreSQL, MySQL, SQLite, Redis built in. Add OLAP and specialty engines via plugins. 📖 Free & open source Licensed under GPLv3 — audit the full source on GitHub at any time. Security Your database. Your credentials. Your AI provider. The question every AI database tool must answer honestly: where does my data go? DataZen runs no cloud service — your data never passes through our servers Passwords are AES-256-GCM encrypted; the master key lives in your OS keychain Only schema and query context are shared with AI — and only with the provider you configure Fully auditable: the complete source code is on GitHub under GPLv3 Your databasefull data — stays on your machine → DataZenlocal desktop app sends only schema / query context ↓ Your chosen AI providerOpenAI · Anthropic · DeepSeek · Custom endpoint Gallery A look inside Frequently asked questions DataZen at a glance What is DataZen? A free, open-source desktop database workspace with AI-assisted querying, analysis, visualization, automation, and MCP integration. Which databases are supported? PostgreSQL, MySQL/MariaDB, SQLite, and Redis are included by default, with optional drivers for MongoDB, ClickHouse, DuckDB, SQL Server, and more. Does data leave my device? Database credentials stay encrypted locally. AI requests go only to the provider and endpoint you configure. Can AI agents use it? Yes. DataZen works as both an MCP server for external agents and an MCP client for bringing external tools into AI Chat. Is it really free? Yes. DataZen is GPLv3-licensed, requires no DataZen account, and provides builds for macOS, Windows, and Linux. What makes it different? AI receives real database context, while charts and reusable cross-database workflows remain inside the same lightweight desktop app. Ready to hand the tedious parts to AI? Download free, connect your database, and run your first AI-assisted query in minutes. Download DataZen — Free No account · Open source · Local-first Latest release · Changelog · Roadmap