Database Schema Compare

Safe V1

Compare a reference SQL schema with a target SQL schema and generate an additive-only upgrade preview without connecting to either database.

No row data No SQL execution

Schema Input

Upload two SQL schema dumps. Maximum 15 MB per file.

.sql only

Reference Schema

The structure you expect the target to match.

Target Schema

The database snapshot that may need additive upgrades.

Compare only. Uploaded files are temporary inputs. Safe V1 does not apply generated SQL.

Safe V1 may generate CREATE TABLE, ADD COLUMN and approved missing-index operations.

Existing datatype, FK-rule, helper-table and other unsafe differences remain manual-review items.

INSERT, UPDATE, DELETE, DROP, TRUNCATE and automatic MODIFY/CHANGE are not generated.