OnePatch
Sqemo
DBDiagram.io
DrawSQL
Vertabelo
ChartDB
DbSchema
ER/Studio
erwin Data Modeler
OnePatch is multi-purpose software solution for e-commerce retailers who sell on multiple online selling platforms. With OnePatch, sellers have the solution to organise their product stock, manage their online orders, shipping and accounts all from one simple and effective system, saving valuable time and expanding business growth.
Sqemo is an ERD tool built around one idea: physical names should be generated from your team's naming standard, not typed by hand.
You register a word list (customer โ cust, number โ no) and naming rules (case style, delimiter, how to handle unknown words) first. Then you model at the logical level โ "Customer Number" โ and the physical column comes out cust_no, the same way for everyone, every time. Overrides are allowed but explicitly flagged, so they never spread silently. Because the correct name is computable, drift is detectable: an in-app linter flags deviations, and a CLI fails CI on violations (npx sqemo-mcp lint).
Key capabilities: โข Logical/physical model separation with stable links between the two โข SQL DDL import/export in seven dialects: MySQL, PostgreSQL, Oracle, SQL Server, SQLite, H2, CUBRID โข DBML import/export โ one round trip to move from dbdiagram โข Runs free in the browser with no sign-up; projects autosave locally and live in a plain .erd.json file you can commit โข MCP server (sqemo-mcp) with 36 tools โ AI agents read and edit your ERD while following your naming standard โข Team workspaces: shared standard, proposeโapprove queue for new words, and a compliance view showing which ERDs drift from the standard
OnePatch
Sqemo