SQLite to T-SQL Script Builder — Migration Script Generator

Drop a SQLite database file and get a complete, ordered set of T-SQL migration scripts for SQL Server. Schema creation, data inserts, foreign keys, and a validation report — all generated locally in your browser.

SQLite → SQL Server

Drop a .sqlite file to generate a complete T-SQL migration script

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Drop your .sqlite file here

or Browse Files · .sqlite, .db, .sqlite3

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⚙ Migration Settings

Database Name

Schema

Batch Size (rows per INSERT)

Default VARCHAR Length

Include CREATE DATABASE / USE Include IF EXISTS / DROP before CREATE Wrap data inserts in a transaction SET IDENTITY_INSERT ON for integer PKs Include foreign key constraints Add GO batch separators

📋 Schema Overview

🔀 Type Mapping Overrides

What Does This Tool Do?

The SQLite to T-SQL Script Builder reads a SQLite database file entirely in your browser using sql.js (a WebAssembly build of SQLite). It inspects the schema — tables, columns, data types, primary keys, foreign keys, indexes — and generates a set of numbered T-SQL scripts that recreate the entire database in SQL Server.

The scripts are ordered for dependency safety: database creation first, then tables in topological order (parents before children), data inserts with configurable batch sizes, foreign key constraints, and finally a validation report that checks row counts match the source.

Generated Script Breakdown

Script	Contents	Purpose
01_Create_Database.sql	CREATE DATABASE, USE, optional DROP	Set up the target database
02_Schema.sql	CREATE TABLE with mapped types, PKs, indexes	Recreate all table structures
03_Data_*.sql	Batched INSERT statements per table	Migrate all row data
04_Foreign_Keys.sql	ALTER TABLE ADD CONSTRAINT for FKs	Restore referential integrity
05_Validation.sql	Row count checks per table	Verify migration completeness

Type Mapping Reference

SQLite Type	Default SQL Server Type	Notes
INTEGER	BIGINT	Covers SQLite's flexible integer storage
TEXT	NVARCHAR(MAX)	Unicode-safe; override length as needed
REAL / FLOAT	FLOAT	Double-precision floating point
BLOB	VARBINARY(MAX)	Binary data preserved as hex literals
BOOLEAN	BIT	0/1 mapping
DATETIME	DATETIME2	Higher precision than legacy DATETIME
NUMERIC / DECIMAL	DECIMAL(18,6)	Override precision in the type mapping panel

Frequently Asked Questions

Does my SQLite database get uploaded to a server?▼

No. The tool uses sql.js (a WebAssembly build of SQLite) to read your database entirely in your browser. Your data never leaves your device.

What file formats are supported?▼

The tool accepts .sqlite, .db, .sqlite3, and .s3db files — all standard SQLite database file extensions.

Can I customize how SQLite types map to SQL Server types?▼

Yes. After loading a file, a Type Mapping panel shows every detected SQLite type with a dropdown to change the target SQL Server type. Overrides are applied when you generate the script.

How large a database can this handle?▼

The tool runs in your browser, so practical limits depend on available RAM. Databases up to several hundred MB work well on modern machines. Very large databases (1 GB+) may be slow or run into memory constraints.

Does the tool handle foreign keys?▼

Yes. Tables are topologically sorted so parent tables are created and populated before child tables. Foreign key constraints are generated in a separate script so you can apply them after all data is loaded.

Can I run the scripts against Azure SQL Database?▼

Yes. Uncheck "Include CREATE DATABASE / USE" to skip database-level commands. The schema and data scripts use standard T-SQL that works on Azure SQL, SQL Server 2016+, and SQL Server on Linux.