Liquibase and Flyway are migration frameworks. SchemaLens is a diff tool. The question isn't which is better — it's when to use each. Here's the honest breakdown.
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SchemaLens complements migration frameworks. Use it for exploration, review, and drift detection.
| Feature | SchemaLens | Liquibase | Flyway |
|---|---|---|---|
| Primary use | Schema diff & review | Migration framework | Migration framework |
| Pricing | Free + $12/mo Pro | Free (OSS) / $3,600+ yr Pro | Free (OSS) / $2,950+ yr Teams |
| Runs in browser | ✅ Yes | ❌ Java/CLI | ❌ Java/CLI |
| Visual diff | ✅ Rich HTML | ⚠️ Text/XML only | ⚠️ Text only |
| Migration execution | ❌ No | ✅ Full framework | ✅ Full framework |
| Rollback support | ❌ No | ✅ Built-in | ✅ Undo scripts |
| Change tracking | ⚠️ Diff history only | ✅ DATABASECHANGELOG | ✅ schema_history |
| Dialect support | 5 dialects | 30+ databases | 20+ databases |
| Shareable reports | ✅ URL + Markdown + PDF | ❌ No | ❌ No |
| Breaking change detection | ✅ Built-in heuristic | ❌ No | ❌ No |
| Legacy schema support | ✅ Paste any CREATE TABLE | ⚠️ Requires changelog | ⚠️ Requires migration files |
| Setup time | 10 seconds | 1-2 hours | 30-60 minutes |
| CI/CD integration | ✅ CLI + API + Templates | ✅ Native Maven/Gradle | ✅ Native Maven/Gradle |
| Privacy | ✅ 100% client-side | ✅ Local execution | ✅ Local execution |
Liquibase and Flyway are designed to execute and track migrations. They manage state over time with changelog tables and rollback scripts.
SchemaLens is designed to compare two states and visualize the difference. It doesn't execute migrations or track history — it makes the diff itself beautiful and shareable.
SchemaLens excels at detecting drift: compare your Flyway-managed schema against production to find changes that bypassed the framework.
Liquibase/Flyway assume all changes go through the framework. They can't easily detect manual schema changes made outside the changelog.
SchemaLens generates Markdown and PDF reports perfect for PR descriptions. Reviewers see exactly what changed without reading SQL.
Liquibase/Flyway changes are reviewed as raw XML/SQL migration files. The reviewer must mentally simulate the diff.
SchemaLens delivers value in 10 seconds. Open the URL, paste schemas, see the diff. No configuration files or database connections.
Liquibase/Flyway require project setup, dependency management, and database connectivity. Powerful but heavyweight for one-off tasks.
SchemaLens never connects to your database. Paste CREATE TABLE statements from your air-gapped environment safely.
Liquibase/Flyway require database connectivity and write permissions. They also insert tracking tables into your schema.
SchemaLens Pro is $12/month for unlimited use. No per-seat pricing, no enterprise sales cycle.
Liquibase Pro and Flyway Teams start at thousands per year. Worth it for large regulated teams, but overkill for small teams.
Use Liquibase if you need a full migration framework with change tracking, rollback support, and enterprise audit trails. Use SchemaLens if you need quick visual diffs, shareable reports, or work with legacy schemas that aren't managed by a migration framework. They complement each other well.
No. Flyway is a migration execution framework. SchemaLens is a diff and visualization tool. You can use SchemaLens to review changes before writing Flyway migrations, or to compare a Flyway-managed schema against production to detect drift.
Liquibase Pro offers a diff command, but the output is text-based XML or SQL. SchemaLens provides a rich visual diff with color-coded changes, breaking change detection, and export to Markdown/PDF — making it easier to review and share.
Yes. Export your schema from the database (not the changelog), paste it into SchemaLens, and compare versions. SchemaLens is read-only — it never modifies your database or interferes with your migration framework.
SchemaLens for exploration and review. Liquibase or Flyway for execution and tracking. Together, they cover the full migration lifecycle.
Compare Schemas FreeFree for up to 10 tables. Pro starts at $12/mo.