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Data Peek
A minimal, fast, database client desktop application. Built for developers who want to quickly peek at their data without the bloat.
Install
$
npx @data-peek/cli doctor postgres://user:pass@localhost:5432/appClaude Code
claude mcp add data-peek -- npx @data-peek/cli doctor postgres://user:pass@localhost:5432/appCursor / Claude Desktop (mcp.json)
{
"mcpServers": {
"data-peek": {
"command": "npx",
"args": [
"@data-peek/cli",
"doctor",
"postgres://user:pass@localhost:5432/app"
]
}
}
}Install command taken from the project's README or registry entry. Always review code before running it.
README excerpt
Read full README on GitHub →data-peek
A fast, keyboard-first SQL client for PostgreSQL, MySQL, SQL Server, SQLite, and ClickHouse (beta). Open it, run the query, get the answer, get back to work.
Website · Download · Docs · Changelog
Why data-peek
- Fast. Opens in about two seconds and stays light on memory. No splash screens, no project setup.
- Keyboard-first.
Cmd/Ctrl+Kreaches every action. Every shortcut is documented. - Local and private. Credentials are encrypted with your OS keychain. No telemetry, no account, no cloud sync.
- Grows with the task. A quick
SELECTstays quick, and query plans, live diffs, ER diagrams, and an AI assistant are there when the job gets bigger.
Install
| Platform | Command |
|---|---|
| macOS, Linux | curl -fsSL https://install.cat/Rohithgilla12/data-peek | sh |
| Windows (PowerShell) | irm https://install.cat/Rohithgilla12/data-peek | iex |
| macOS (Homebrew) | brew install --cask Rohithgilla12/tap/data-peek |
Or grab a build from Releases: .dmg for macOS (signed and notarised), .exe for Windows, and .AppImage, .deb, or .tar.gz for Linux.
Platform notes
macOS. Builds are signed and notarised, so they open without warnings. The quick installer installs the matching .dmg and clears the quarantine flag for you. If an older manual install says the app is "damaged", run xattr -cr "/Applications/Data Peek.app".
Linux. The AppImage and the .deb update themselves; .tar.gz installs need a manual download for each new release. The quick installer puts the AppImage at ~/.local/bin/data-peek. The .deb installs to /opt/data-peek with an AppArmor profile, which Ubuntu 24.04+ needs for Electron's sandbox.
No install: npx @data-peek/cli doctor
Eight Postgres schema checks from the terminal. Each finding comes with the SQL that fixes it.
npx @data-peek/cli doctor postgres://user:pass@localhost:5432/app
npx @data-peek/cli doctor "$DATABASE_URL" --fail-on warning # fail CI on warnings
It finds tables without a primary key, foreign keys without an index, duplicate, unused, and invalid indexes, bloat, never-vacuumed tables, and nullable foreign keys. These are the same checks as Schema Intel in the app. See packages/cli.
See it work
<b>Watch Mode</b>: pin a <code>SELECT</code> and watch cells change live.
</td>
<td width="50%">
<b>Query plans</b>: <code>EXPLAIN ANALYZE</code> as a tree, with the slow node and its fix.
</td>
<b>MCP server</b>: agents can read freely; every write waits for your approval.
</td>
<td width="50%">
<b>Time Machine</b>: scrub back through past results and diff any two runs.
</td>
More clips (command palette, ER diagrams, the AI assistant, inline editing) are on datapeek.dev.
Features
Query editor
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