Atlas wants HCL (or SQL) as the schema source of truth. Migratrix wants a reviewed run.
Atlas treats schema like Terraform: declare desired state, plan, apply from CI. That is a good fit for teams who already live in infra-as-code. Migratrix is UI-first. GitOps stores SQL change scripts, not an Atlas HCL graph. We do not apply Atlas plans.
What each side actually is
Where Atlas is strong
Desired-state schema, CI planning, and a code-review workflow that looks like infrastructure.
What Migratrix adds
Explorer, live same-engine compare, Drift Monitor, pipelines with per-environment gates, Conversion Studio, governed production reads, and an agent that keeps rows off the control plane.
When they may still be better
If the team will only accept schema-as-HCL and the database change must be `atlas` in GitHub Actions with no product UI, Atlas is the better shape. Migratrix will feel like a platform, not a CLI.
Overlap, said plainly
Both can sit next to Git. Atlas owns declarative schema. Migratrix owns promotion, compare, conversion, and access. You can keep Atlas for desired-state in some services and still use Migratrix for production access and cross-engine moves.
Side by side
Migratrix cells are what the product does today. Atlas cells are the usual shape of that product, not a sourced datasheet. Confirm anything marked "ask them" on their site.
| Capability | Atlas | Migratrix |
|---|---|---|
| Declarative schema (HCL) | Yes | No |
| SQL change scripts in Git | Also SQL mode | Yes, GitOps |
| Interactive Explorer | Not the core | Yes, RBAC |
| Same-engine data compare | Not the core | Yes |
| Cross-engine conversion | Not the product | Conversion Studio |
| Approvals as product gates | CI / PR | Per environment |
| Runs Atlas plans | Yes | No |