SchemaSmith vs SQL Compare: CLI-First, Cross-Platform

Quick Summary

Both tools use a state-based approach to database schema deployment. SchemaSmith is CLI-first with native cross-platform support and includes data deployment (DataTongs). Redgate SQL Compare is GUI-first (Windows) with CLI available via Docker for Linux/macOS, and requires a separate SQL Data Compare purchase for data deployment. SchemaSmith offers a free Community edition with full deployment capabilities; SQL Compare is commercial only.

Technical Comparison

How the tools differ in approach, features, and developer experience.

Aspect	SchemaSmith	SQL Compare (Standalone)
Approach	State-based, CLI-first	State-based, GUI-first
Schema Deployment	Yes	Yes
Data Deployment	Yes	No (separate SQL Data Compare)
Platform	Cross-platform native (macOS, Linux, Windows, ARM64)	Windows GUI; CLI on Linux/macOS via Docker
Source Format	Git-native JSON files	Proprietary project format
PR Readability	Human-readable JSON diffs	Proprietary diffs
CI/CD Integration	Native CLI, included	CLI available; separate automation license
Drift Detection	Automated in pipeline	Manual comparison in GUI
AI Schema Assistant	Ask Forge: AI-powered CLI & MCP server with 40+ tools	No
Open Source	Yes	No
PostgreSQL Support	Yes	No
Free Tier	Yes (Community: full deployment capabilities)	No (14-day trial)

Choose SchemaSmith when...

You need data deployment
You want native cross-platform CLI
You prefer Git-friendly, human-readable diffs
You need PostgreSQL support
You want a free, open-source option
You have 9+ users needing schema + data (cost advantage)
You want easy CI/CD automation

Choose SQL Compare when...

You prefer a manual GUI-based visual diff experience
You're a Windows shop with SSMS workflows
You have a small env and manual schema compares are ok
You have a small team (<16 users) for schema-only
You're already invested in the Redgate ecosystem
You prefer ad-hoc comparisons in a GUI

Pricing Comparison

SQL Compare is schema-only; SQL Data Compare is a separate purchase. SchemaSmith includes both.

Aspect	SchemaSmith	SQL Compare
Pricing Model	Unlimited seats & targets	Per-user (~$312/user/year)
Data Deployment	Included	Separate (~$312/user/year for SQL Data Compare)
Free Tier	Community: full deployment capabilities	None (14-day trial)
CI/CD Automation	Included	Separate license (quote-based)

SQL Compare Only (schema, no data)

Team Size	SQL Compare	SchemaSmith	Winner
10 users	$3,120	$5,000	Redgate
15 users	$4,680	$5,000	Redgate
16 users	$4,992	$5,000	Redgate (barely)
17 users	$5,304	$5,000	SchemaSmith

SQL Compare + Data Compare (apples to apples)

Team Size	Compare + Data	SchemaSmith	Winner
5 users	$3,120	$5,000	Redgate
8 users	$4,992	$5,000	Redgate (barely)
9 users	$5,616	$5,000	SchemaSmith
10 users	$6,240	$5,000	SchemaSmith

SchemaSmith Pricing Advantage

Schema + data in one tool. For an apples-to-apples comparison (schema + data deployment), SchemaSmith is cheaper at 9+ users. Plus, you get CI/CD automation included, cross-platform native support, and PostgreSQL — none of which SQL Compare offers.

Migrating from SQL Compare

Switching from SQL Compare to SchemaSmith is straightforward:

Extract your current schema — Use SchemaTongs to capture your existing database state as JSON metadata
Review the generated metadata — The JSON files become your new source of truth, stored in Git
Deploy with SchemaQuench — Future changes are made by editing metadata, with readable diffs in PRs

SchemaSmith's JSON format means your schema definitions are portable and human-readable — no proprietary project files.

SchemaSmith vs SQL Compare