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Do I need to sign up?

No. All tools on DBridge are completely free and require no account.

Free ToolNo signup · Runs in browser

Database Schema Diff

Generate ALTER TABLE migrations from two CREATE TABLE schemas

SQL

Schema A (current)

Schema B (target)

Migration

ALTER TABLE users ADD COLUMN full_name TEXT;

SQL Formatter

Beautify & minify SQL queries instantly

SQL Error Explainer

Understand & fix common SQL errors

SQL → JSON

Convert SQL INSERT/SELECT to JSON

ERD → SQL

Design database tables visually and generate CREATE TABLE SQL

SQL → ERD

Parse SQL schema and visualize as a text-based ERD

JSON to SQL

Infer columns and generate CREATE TABLE DDL from JSON

Results appear instantly — everything runs in your browser.

Your data never leaves your device. No account required.

No subscription, no sign-up, no paywalls.

One-click copy for all outputs.