SQL Developer Tools Hub
A suite of essential utilities for Database Administrators and Backend Engineers.
Generate schemas, convert data, and format queries instantly.
CSV to SQL Converter
Transform large CSV datasets into ready-to-execute SQL INSERT statements. Supports MySQL, PostgreSQL, and SQLite syntax.
Smart Schema Generator
Don’t guess data types. Paste your CSV or JSON, and we’ll generate the precise `CREATE TABLE` SQL with correct VARCHAR lengths and Integer types.
JSON to SQL Converter
Flatten nested JSON API responses into relational database tables. Handles arrays and nested objects automatically.
Instant SQL Formatter
Beautify ugly, minified SQL queries. Standardize indentation, capitalize keywords, and remove comments for better readability.
SQL Diff Checker
Compare two SQL schemas or query dumps side-by-side. Highlight changed columns, added indexes, and modified constraints.
Properties to YAML
While not strictly SQL, this tool helps DBAs migrate database configurations from legacy formats to modern YAML.
Why Use Client-Side SQL Tools?
Database security is paramount. Most online converters require you to upload your sensitive data (like customer CSVs or production schemas) to a remote server for processing. This creates a significant compliance risk (GDPR, HIPAA).
ToolsHref is different. Our SQL tools run 100% in your web browser using JavaScript. Your data never leaves your device. Whether you are generating a schema for a 1GB CSV file or formatting a proprietary query, the processing happens locally on your machine.
Common Use Cases
- Data Migration: Quickly turning Excel sheets given by marketing teams into SQL dumps for the production DB.
- Legacy Code Refactoring: Taking old, unreadable stored procedures and running them through the Formatter.
- API Integration: Converting JSON responses from 3rd party APIs into SQL tables for analysis.
Frequently Asked Questions
Are my CSV files uploaded to your server?
No. All tools on this page function offline. Your browser processes the files locally using the File API, ensuring 100% data privacy.
Does the Schema Generator detect Date formats?
Yes. The tool scans the first 100 rows of your data to sniff patterns. If it sees “2023-01-01”, it assigns the `DATE` type instead of generic `VARCHAR`.
Which SQL dialects are supported?
Most tools here support the “Big Three”: MySQL, PostgreSQL, and SQLite. The syntax for `AUTO_INCREMENT` vs `SERIAL` is handled automatically.
Can I convert a 100MB JSON file?
Yes. Because we process data in the browser, the limit depends on your computer’s RAM, not our server limits. 100MB is typically processed in seconds.