Comparison

Comper vs Backstage

Backstage is a framework your team builds and runs: you host it, write catalog YAML for every service and keep it up to date by hand. Comper needs none of that. It reads your source code and full Git history directly, so the picture stays accurate on its own.

Key differences

Understanding from day one, with nothing to maintain

Nothing to maintain

Connect your repositories and Comper builds the map from the code. No catalog files to write, no portal to host, no plugins to keep up to date.

Source-code level understanding

Comper reads the code itself: architecture, code-level dependencies, ownership and product flows, not only the metadata teams register.

Back in time

Comper analyses your entire Git history, so you can see how architecture, ownership and risk have changed over the years.

Why Comper?

Legacy engineering tools force teams to buy, integrate, and maintain three or four separate platforms. Comper consolidates software context, engineering metrics, developer portal visibility, and code quality into a single, automated spatial canvas.

Computed, not maintained

Health scores, ownership, and architecture are computed directly from real Git history and static code analysis. No manual YAML registration, no stale portal data.

Category-unique spatial canvas

An infinite, living, zoomable visual map connecting repositories, architecture diagrams, and team ownership in real time.

AI-agent native infrastructure

Native Model Context Protocol (MCP) context, AI tool adoption tracking, and agent-readiness scoring designed specifically for the AI coding era.

3-in-1 platform consolidation

Replace separate subscriptions for engineering productivity (Swarmia), developer catalogs (Backstage/Port), and code quality engines.

Internal Developer Platform (IDP)

Provides the foundations, services, and standards that enable developers to build and ship software efficiently.

Code Analytics

Provides visibility into code health, quality, and engineering metrics to drive better decisions and outcomes.

Productivity Tools

Help developers and engineering leadership plan, build, test, collaborate, and deliver software more effectively.

Software Context

The shared understanding of the codebase, systems, architecture and developer activity that connects everything.

Backstage
Backstage sits in the developer platform. Comper connects all three.
Similarities

Same landscape, different lens

Backstage and Comper both help organizations make complex software landscapes easier to understand and give developers better access to technical context.

Backstage

  • An open-source framework for building an internal developer portal
  • Software catalog and API catalog
  • Self-service templates and scaffolding
  • Documentation, plugins and integrations

Comper

  • A software graph generated from the code, with nothing to register or maintain
  • Architecture, dependencies and ownership, down to the code level
  • Your full history: how the software evolved, technical risk and change impact
  • Product flows linked to their technical implementation
Software intelligence

Architecture, risk and documentation, built in

Generated from your source code and Git history on every change. No catalog YAML to write or keep up to date.

Comper interactive architecture diagram: actors, core system modules and libraries, data storage and external systems for a mobile client.
Interactive Diagrams
Comper architectural risk findings table with Critical, High and Medium severities.
Real time Architectural Risks insights
Comper cross-repository connections table: dependent entities, how they connect, owning team and importance tier.
Internal connections and dependencies are mapped on every change
Comper repository overview: importance tier, owner, contributors, size, code age, languages and a generated repository summary.
Living documentation and diagrams
Feature matrix

Backstage vs Comper, side by side

CapabilityBackstageComper
One-click setupSelf-hosted build & configuration
No maintenance, no configuration neededCatalog YAML maintained by teams
Software catalog
Service discovery
Declared ownership
Actual knowledge / expertiseLimited
API catalog
Entity-level dependencies
Code-level dependency graph
Source-code understanding
Architecture discoveryRequires catalog/integrations
Historical software evolution
Change impact analysis
Product flow → technical implementation
Technical risk / debt intelligenceVia plugins/integrations
Security / CVE scanningVia third-party plugins
Secret scanningVia third-party plugins
Living documentation from software
Self-service developer portal
Software templates / scaffolding
Plugin ecosystem
MCP / AI access
Context for AI agentsCatalog + actionsDeep software context
Product & leadership perspectiveLimited
Deployment optionsSelf-hosted (you build & run it)On-prem or SaaS
EU hosting / GDPRDepends on where you host itEU-hosted SaaS or on-prem, GDPR compliant
Two models

Two different models of your software

Backstage

Metadata → Catalog → Developer Portal

  • Services
  • APIs
  • Teams
  • Resources
  • Documentation
  • Tools
  • Discover
  • Search
  • Standardize
  • Create
  • Self-service

Backstage helps developers navigate the engineering organization.

Comper

Software → Software Graph → Intelligence

  • Source code
  • Git history
  • Dependencies
  • Architecture
  • Ownership
  • Product flows
  • Changes over time
  • Understand
  • Reason
  • Predict impact
  • Find knowledge
  • Identify risk
  • Give context to AI

Comper helps humans and agents understand the software itself.

Ask different questions

From “what exists” to “what it means”

With a software catalog

  • Who owns the Payments service?
  • Where is its documentation?
  • What API does it expose?
  • How do I create a new service?
  • Which systems does my team own?

With Comper

  • Who actually understands Payments?
  • Why is Payments becoming harder to change?
  • What depends on this module three layers down?
  • Which parts of Checkout would be affected if we replaced Payments?
  • How much engineering effort has gone into Checkout over the last year?
  • Where is knowledge concentrated in individual engineers?
  • What architecture existed before this migration?
  • What does an AI agent need to know before changing Payments?
  • What would launching our business in Japan affect across our software?

Backstage tells you what you have. Comper tells you what it means

A service catalog is incredibly useful when you have hundreds or thousands of services.

But knowing that something exists is only the beginning. The next questions are:

  • How does it work?
  • How did it get here?
  • Who really understands it?
  • What depends on it?
  • What happens if we change it?

Comper continuously answers those questions from the software itself.

Which is right for you?

Choosing between Backstage and Comper

Why choose Comper over Backstage?

Choose Comper when the main problem isn't finding a service. It's understanding it.

When your technical landscape has become too large for anyone to keep in their head, and important questions still require asking engineers, inspecting repositories, tracing dependencies, checking outdated diagrams and piecing together years of history, a catalog isn't enough.

Comper builds that understanding automatically. One continuously evolving software graph.

  • For Developers
  • For Product
  • For Leadership
  • For AI agents

Why choose Backstage over Comper?

Choose Backstage if your primary goal is building a developer portal.

If you want a self-service portal where developers launch standardized software through templates, access internal tools, and build custom workflows through an open-source plugin ecosystem, Backstage is designed specifically for that.

It's a powerful platform for organizing the developer experience.

Let your software describe itself