View, edit, and query databases directly in Chrome. 100% client-side processing with zero data transmission.
All processing in your browser. Works offline, no APIs or third-party services required.
Load and work with multiple databases simultaneously
Execute SELECT, INSERT, UPDATE, DELETE queries
Build queries without writing SQL code
Create charts and view column statistics
Support for SQLite, CSV, JSON, XML, HTML, TSV
Click DBTool in your Chrome toolbar to open the popup
Your browsing content
Drop files or paste a URL in the popup window
Drop database files here
or click to browse
Use the full-featured interface to explore your database
SELECT * FROM customers LIMIT 10
| id | name | status | |
|---|---|---|---|
| 1 | John Doe | john@example.com | active |
| 2 | Jane Smith | jane@example.com | active |
| 3 | Bob Johnson | bob@example.com | pending |
Built for developers who value privacy
All database operations happen in your browser using WebAssembly. Works completely offline without requiring any third-party APIs or services. Your files never leave your device, ensuring complete privacy and security.
Load and work with multiple databases simultaneously. Compare schemas, switch between databases with tabs, and manage complex workflows.
Write SQL queries or use the visual query builder. Perfect for both SQL experts and beginners. Includes query templates and autocomplete.
Click any cell to edit data directly. Track changes, insert new rows, delete records, and download the modified database when done.
Perfect for developers and data professionals
Install in seconds
One-click install from the Chrome Web Store. No setup required, start using immediately.
Add to Chrome - It's FreeInstall directly from Chrome Web Store with a single click
Start using immediately after installation, no configuration needed
Completely free with no hidden costs or premium features
Frequently Asked Questions
Absolutely safe. DBTool processes all databases locally in your browser using WebAssembly (sql.js). Your database files never leave your device. There are no network requests, no server uploads, and no data collection. Everything happens 100% client-side in your browser. The extension works completely offline and doesn't require any third-party tools or APIs.
DBTool supports SQLite databases (.db, .sqlite, .sqlite3), CSV files, TSV files, JSON (array of objects), XML files, HTML tables, SQL dump files, and URLs to load data directly from the web. You can also load multiple files simultaneously and convert between formats.
Yes! You can edit any cell by clicking on it, add new rows, delete records, and run INSERT/UPDATE/DELETE queries. When you're done editing, simply download the modified database file using the Download button. Your changes are preserved in the downloaded file.
Not necessarily! DBTool includes a Visual Query Builder that lets you build queries without writing SQL code. Simply select your table, choose columns, add filters, and DBTool generates the SQL for you. However, if you know SQL, you can write queries directly with autocomplete support.
Yes! Load two or more databases, then click the Compare button. DBTool will show you tables that exist in both databases, tables unique to each database, schema differences, and row count comparisons. This is perfect for validating migrations or comparing development vs production databases.
DBTool is completely free with no hidden costs, premium features, or subscriptions. All features are available to everyone. The only limitation is browser memory - very large databases (over 100MB) may take longer to load depending on your system resources.
Click the DBTool extension icon, paste the URL to your database file in the URL input field, and click Load. The URL must be publicly accessible and CORS-enabled. This is useful for loading databases from cloud storage services like Dropbox (with direct links), Google Drive, or your own web server.
DBTool is a Chrome extension designed for Google Chrome and Chromium-based browsers (like Microsoft Edge, Brave, and Opera). It requires Chrome version 88 or higher. The extension uses modern web technologies including WebAssembly for database processing.
