Benthos
High-performance stream processor for data pipelines
About Benthos
Benthos (now Redpanda Connect) is a high-performance, open-source stream processor that connects various data sources and sinks. With 300+ pre-built connectors and at-least-once delivery guarantees, it makes building reliable data pipelines operationally simple.
Pros & Cons
Pros
- Completely open source with no feature gating
- 300+ connectors for almost any data source
- 3x less compute resources than Kafka Connect
- Zero-dependency binary — easy to deploy
- At-least-once delivery without external state store
- Active community and Redpanda backing
Cons
- Rebranded to Redpanda Connect — can cause naming confusion
- Learning Bloblang mapping language takes time
- Enterprise support requires Redpanda Cloud subscription
- Documentation can be scattered between Benthos and Redpanda
- Not a full event streaming platform on its own
Key Features
300+ Pre-Built Connectors
Connect databases, message queues, cloud services, caches, and HTTP endpoints out of the box
At-Least-Once Delivery
Guarantees message delivery even during crashes or server faults without disk persistence
Powerful Mapping Language
Transform, filter, and enrich data using Bloblang, a purpose-built mapping language
Fan-In/Fan-Out Patterns
Support for complex routing patterns, content-based routing, and windowed aggregations
Dead Letter Queues
Handle failed messages gracefully with automatic dead letter queue routing
Observability
Built-in metrics, tracing, and logging for full pipeline visibility
Cloud Native
Deploy as a static binary or Docker image with minimal resource requirements
Config-Driven
Define entire pipelines in YAML configuration files for easy version control
Pricing
- All connectors
- Full stream processing
- At-least-once delivery
- Community support
- Managed infrastructure
- Enterprise support
- SLA guarantees
- Dedicated clusters
Best For
ETL/ELT Pipelines
Move and transform data between databases, warehouses, and analytics platforms
Real-Time Data Integration
Stream data between microservices, APIs, and message queues in real-time
Event Processing
Process and route events with content-based routing and enrichment
Data Migration
Reliably migrate data between systems with guaranteed delivery
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