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Structr

structr.org

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Free plan · Open source See pricing ↓

Structr is an open-source low-code platform for building complete, data-driven web applications from a single integrated environment. It combines a graph database (Neo4j), a visual schema editor, automatic REST APIs, server-side scripting, a page rendering engine, and a built-in security system in one self-hosted platform. It is developed by Structr GmbH in Germany and runs on the user's own infrastructure.

What it's for

Internal business applications (project management, asset tracking, CRM, ticketing)Data management platforms with complex access control requirementsCustomer portals and self-service applicationsDocument and content management systemsApplications integrating data from multiple external sources (via JDBC, MongoDB, MQTT, Kafka, Pulsar, REST)Workflow and process automation toolsPrototypes and MVPs that need to evolve into production systems

Features 20

  • Automatic REST API generation with CRUD, filtering, sorting, and pagination
  • Configurable JSON views to control exposed properties
  • Cron job scheduling
  • Event-action mappings linking DOM events to backend operations
  • File management with custom metadata
  • Flow Editor for visual, node-based workflow automation
  • Graph database backend (Neo4j) with Cypher query support
  • Instant, migration-free schema changes
  • Lifecycle callbacks on data changes
  • Localization support
  • Mail templates
  • Multi-site hosting
  • OAuth 2.0, JWT, JWKS validation, two-factor authentication, and SSL/TLS security
  • Server-Sent Events for real-time updates
  • Server-side JavaScript scripting on GraalVM
  • Server-side page rendering engine with template expressions and repeaters
  • Spatial indexing
  • StructrScript expression language
  • User and group management with object-level permissions and visibility flags
  • Visual schema editor for defining types, properties, and relationships

At a glance

free tierfree trialopen sourceself-hostableAPI
TypeWeb app
DeploymentSelf-hosted
PlatformsWeb, Linux
Forgovernments, public institutions, defense contractors, healthcare organizations, enterprises in regulated industries, organizations in Europe
CompanyStructr GmbH

Integrations

Apache PulsarNeo4jMQTTGoogleIMAPAzureGitHubAmazon NeptuneKafkaRSSMongoDBFTPMemgraph

Complianceself-reported

GDPR

Resources

Pricing

How we check this

The core platform is open source and self-hosted with no stated licensing fee. A free 14-day cloud-hosted sandbox is offered with no credit card required; after 14 days users can upgrade to a paid plan to keep the sandbox running, but no price figures are shown.

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