Choosing the Right Developer Portal: Cortex, OpsLevel, Port, and Backstage Compared

Internal Development Platforms (IDP) aggregate the tools and technologies that platform engineering teams provide to create a golden path for developers. A developer portal is the interface through which developers discover and access IDP capabilities.

Gartner Definition

Gartner defines a developer portal as the UI that lets developers find and use internal platform functions.

Cortex

Description: Large‑scale, reliable, and innovative software building.

Key Points: Uses a recorded system approach to help engineering teams understand microservice architecture and development outlook.

Website: cortex.io

Documentation: docs.cortex.io

Cortex tracks service metadata (ownership, tags, custom fields) and allows custom scorecards for operational readiness, DORA metrics, and maturity. It supports cloud and self‑hosted deployments (Helm chart) and offers both UI editing and GitOps‑based updates via a unified descriptor file.

Mission & Vision

Cortex aims to provide a viable alternative for large‑scale service‑oriented architectures, exposing service‑quality nuances to reduce knowledge silos and ease onboarding of new engineers.

History

Created by engineers from Twilio, Uber, and others; adopted by companies such as Grammarly, Rappi, 8x8, Adobe. In late 2021 it raised $15 million Series A.

Core Features

Dependency tracking with integration to tools like Datadog.

Query generator for unified data queries across third‑party tools.

Integrations with ~30 tools (GitHub, ECS, Prometheus, etc.).

Adoption may require a learning period; transitioning directly to GitOps without UI familiarity is not recommended.

OpsLevel

Description: All your services in one interface.

Focus: Provides a unified view for developers to manage tools, services, and systems.

Website: opslevel.com

Documentation: opslevel.com/docs

OpsLevel offers an interactive dashboard showing service metadata, dependencies, repositories, and annotations. It supports filtering, sorting, and searching services, and includes CLI, GraphQL API, and Terraform provider.

Mission & Vision

OpsLevel’s goal is to simplify service management for engineering teams, providing self‑service tools that let developers create services, connect toolchains, and monitor operations from a single place.

History

Founded by two former PagerDuty engineers; raised $5 million seed in 2020 and $15 million Series A in 2022.

Core Features

Service catalog interface with deep metadata and visual dependency graphs.

Integrations with CI/CD, Git, Slack, Jenkins, AWS ECR, PagerDuty, etc.

Service maturity monitoring with scorecards for adoption, standards, and best practices.

Port

Description: Developer portal builder.

Focus: Enables platform teams to build service catalogs and provide self‑service operations for developers.

Website: getport.io

Port offers a software catalog layer (microservices, cloud resources, providers, environments, permissions, secrets, deployments) and a self‑service layer where developers can perform actions like deploying a microservice or adding a cloud resource.

Mission & Vision

Port believes every developer should have a first‑class experience when coding and shipping to production, providing a unified DevPortal that can be launched in minutes.

History

Launched in January 2022 by a team with over ten years of DevEx experience; initially built for 1,500+ developers.

Core Features

Visibility through a comprehensive mapping of software and infrastructure components.

Self‑service enabling any user to perform operations.

Fine‑grained policies and controls for responsible IDP usage.

Backstage

Description: Open platform for building developer portals.

Focus: Helps large teams document infrastructure and services; originated at Spotify and provides a software catalog for ownership and metadata tracking.

Website: backstage.io

Documentation: backstage.io/docs/overview/what-is-backstage

Backstage is not a full IDP but a strong add‑on, offering a software catalog, software templates, TechDocs, and an extensible plugin ecosystem.

Mission & Vision

Backstage aims to provide the best developer experience, allowing engineers to work without needing deep expertise in every infrastructure tool.

History

Released publicly in March 2020 after being used internally at Spotify to manage thousands of services, websites, data pipelines, and mobile features.

Core Features

Software catalog for discoverable services and metadata.

Software templates to standardize new project creation.

TechDocs for documentation-as-code.

Open‑source plugins for broad integration.

Discoverability of documentation and owners.

Backstage serves as a valuable component for any IDP, offering a central access point that accelerates product development and consolidates information.