Moderne
Transform codebases swiftly with AI-driven refactoring and security.. [Contact for Pricing]
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What is Moderne?
Moderne is an enterprise-grade platform that automates large-scale code refactoring, migrations, security remediation, and repo-wide analysis across thousands of repositories without requiring engineers to write custom scripts. The platform uses a Lossless Semantic Tree (LST) model and deterministic transformation architecture to provide precise, context-aware code understanding and automated edits that preserve behavior while enabling mass changes. Moderne is offered as a private SaaS platform with complementary CLI and an air-gapped offering (Moderne DX) so organizations — including security-sensitive and highly regulated teams — can run recipes, create pull requests, and generate reports inside controlled environments. It is aimed at engineering organizations, platform teams, and security or compliance groups that need governed, repeatable, and auditable code transformations at org scale rather than ad-hoc single-repo fixes.
Moderne pricing
Pricing model: Freemium
The website emphasizes a private SaaS enterprise model with tailored plans rather than publishing fixed consumer pricing; it offers a free access pathway for Open Source projects via public.moderne.io and describes paid enterprise offerings that include the hosted Moderne Platform, the Moderne CLI for local artifact creation, and Moderne DX for air-gapped deployments. Specific tier names, seat counts, or per-repo/pricing numbers are not listed on the public pages and are handled through direct engagement with Moderne sales for enterprise licensing and deployment options.
Moderne pros
- Scales OpenRewrite automation across thousands of repositories
- Lossless Semantic Tree (LST) for precise, context-aware code understanding
- Deterministic transformation engine that preserves behavior
- Private SaaS with enterprise readiness and governance features
- CLI that complements the platform for local LST artifact creation
- Moderne DX option for air-gapped or highly secure environments
- Automates framework migrations and large-scale upgrades
- Automates security vulnerability remediation across many repos
- Generates pull requests automatically to integrate changes into workflows
- Org-wide code search and discovery powered by semantic models
- Detailed reporting and audit trails for governance and compliance
- No-code execution of recipes for non-expert users in the organization
- Supports agent-driven workflows and coding agents integration
- Can standardize code quality and fixes across teams and projects
- Publicly available OpenRewrite recipes and community contributions for OSS
Moderne cons
- Primary focus on organizations with many repositories rather than single-repo teams
- Enterprise/private SaaS model may require significant budget for large customers
- Onboarding and building LST artifacts likely needs engineering effort
- Certain advanced capabilities require use of the CLI or platform integration
- Not primarily marketed as a lightweight developer IDE plugin
- Some features (air-gapped DX) are tailored to strict security environments only
- Dependent on OpenRewrite recipes—custom recipe creation may be needed
- Public/free use primarily tied to open-source projects, commercial use requires paid plan
Frequently asked questions about Moderne
What is Moderne and what problem does it solve?
Moderne is an enterprise platform that automates code refactoring, migrations, security fixes, and analysis across many repositories using a semantic code model (LST) and deterministic transformations; it solves the problem of making consistent, behavior-preserving changes at org scale without manual edits in each repository.
How does Moderne preserve my code's behavior when making changes?
Moderne uses the Lossless Semantic Tree (LST) and a deterministic transformation architecture built on OpenRewrite to understand code context deeply and apply transformations that maintain the original behavior while updating APIs, frameworks, or patterns.
Can I run Moderne in an air-gapped or highly secure environment?
Yes — Moderne offers Moderne DX, a capability designed to bring LST-based insights and remediations into air-gapped or highly secure environments so organizations with strict security or compliance requirements can run recipes locally without exposing code externally.
Is there a CLI or local tooling available?
Yes — Moderne provides a CLI that complements the hosted Platform; the CLI enables you to build LST artifacts across repositories and run recipes locally so engineers can prepare and test transformations from their machines.
Can Moderne create pull requests automatically?
Yes — the platform can run recipes across repositories and create pull requests with the proposed changes, enabling teams to review and merge standardized fixes through their normal version-control workflows.
Does Moderne support open-source projects for free?
Moderne supports public usage for open-source projects via public.moderne.io, allowing maintainers to run OpenRewrite recipes freely against open-source repos, while commercial and enterprise uses are handled through paid plans.
What kinds of code changes or remediations can Moderne perform?
Moderne can automate framework migrations, dependency and API upgrades, security vulnerability remediation, large-scale code standardization, and organization-wide search-and-replace tasks that require semantic understanding across many repositories.
How do I get started with Moderne for my organization?
Getting started typically involves engaging Moderne to set up the private SaaS instance or Moderne DX deployment, preparing LST artifacts (which can be done via the CLI), selecting or authoring OpenRewrite recipes, and configuring repository access so the platform can run discoveries and create pull requests.
How are changes tracked and audited?
Moderne generates detailed reports and maintains audit trails for actions performed by recipes and agents, enabling governance teams to review what changes were made, where, and why — which supports compliance and change control processes.
Can Moderne integrate with existing CI/CD and engineering workflows?
Yes — Moderne is designed to integrate with typical engineering workflows by creating PRs, producing reports, and offering CLI tooling; it is intended to work alongside CI/CD and repo management systems to coordinate automated, governed changes at scale.