Open .SQL files online
A .sql file contains SQL — Structured Query Language, the standard language for working with relational databases. SQL files hold queries, schema definitions, migrations, and data dumps, and are read by databases like PostgreSQL, MySQL, SQLite, and SQL Server.
SQL is standardized by ANSI/ISO, though each database adds its own dialect. A .sql file is often the artifact of a database export or a migration under version control, so opening it to inspect schema changes or data is common.
What is a `.sql` file?
SQL covers data definition (CREATE TABLE), data manipulation (SELECT, INSERT, UPDATE, DELETE), and control (transactions, grants). A .sql file is a sequence of statements separated by semicolons, executed by a database engine.
A .sql file is plain text (UTF-8), MIME type application/sql. It must be run against a database to take effect; the viewer shows the statements without executing them.
- Database schema and migrations under version control
- Analytical and reporting queries
- Database backups and data dumps (e.g. mysqldump)
- Stored procedures and views
How to open a `.sql` online
Open the zip viewer in a new tab, then drop your .sql onto the page — or click to browse for it, or paste a URL. The file opens in the Monaco code editor, with syntax highlighting, code folding, and find, read entirely on your device.
- Drag your
.sqlonto the page — or click to browse, or paste a URL. - It opens immediately in the Monaco code editor, with syntax highlighting, code folding, and find. No install, no sign-up.
- Read, search, or copy it. Your file never leaves your browser.
Open `.sql` without uploading
Most "open sql online" sites work by uploading your file to a server and processing it there. ZipTool does the opposite: it loads its parser once, then reads your .sql locally in the browser tab. The contents stay on your device.
You can prove that in seconds. Open the page, press F12 for DevTools, switch to the Network tab, and open your file — no request carrying the file's contents is sent. You can also turn off Wi-Fi after the page loads and the file still opens. See security and privacy for the full picture.
Frequently asked questions
How do I open a .sql file online?
Drag the .sql onto the page (or click to browse, or paste a URL). It opens in the code editor so you can read the statements, search, and copy — they are not executed against any database. The file is parsed entirely in your browser and never uploaded.
Can I view a .sql without uploading it?
Yes. ZipTool reads the file locally in your browser tab — no upload, no server-side copy. Confirm it with DevTools (F12, Network tab) while opening the file, or by turning off Wi-Fi after the page loads and verifying the file still opens.
Does opening a .sql run the queries?
No. The viewer displays the SQL statements as text; it has no database connection and executes nothing. That makes it a safe way to inspect a migration or data dump before applying it.
Is a .sql file a text file?
Yes. SQL scripts are plain text (UTF-8), so a .sql opens in any text or code editor. The statements are what make it SQL, but the file is readable text.