At a glance
| Source connectors | Processors for databases (JDBC), Kafka, files, SFTP, HTTP, object storage and more |
| Destination connectors | Processors for the same families of systems; flows can deliver to many targets |
| Batch or streaming | Continuous flow processing; also handles scheduled and file-based batches |
| Change data capture | No dedicated managed CDC service in the Apache project; check processors for your database |
| Transformations | Record-oriented processors, scripted and Python processors (beta) |
| Orchestration | Flow scheduling per processor; not a general workflow orchestrator |
| Deployment | Self-hosted on Linux, Unix, Windows or macOS; containers and Kubernetes are self-managed |
| Licensing | Apache License 2.0; managed NiFi-based service via Snowflake Openflow |
Apache NiFi suits teams that need to move many kinds of data, files, events and records between systems continuously and want to see and change the flow in a visual canvas while it runs. It is free under the Apache licence, but you run, secure and upgrade it yourself; NiFi 1.x is past end of support, so new installs should start on NiFi 2.
Overview
Apache NiFi is an Apache Software Foundation project for automating the flow of data between systems. You build a flow in a web interface by connecting processors (which fetch, route, transform or deliver data) with queues, and each piece of data moves through the flow as a FlowFile made of attributes and content. NiFi records data provenance, so you can trace what happened to each piece of data, and applies back pressure when queues reach their limits.
The current line is NiFi 2. The download page listed NiFi 2.12.0 (13 September 2026) as the latest release and states that NiFi 1.28 is the last minor release of the 1.x series, with an end-of-support date of 8 December 2024. NiFi 2 requires Java 21, adds Python-based processors (a beta feature that needs Python 3.10 to 3.12) and introduced Git-based flow registry clients for GitHub, GitLab, Bitbucket and Azure DevOps.
Key features
- Browser-based canvas for designing, starting, stopping and changing flows while they run
- Data provenance repository that records lineage for each FlowFile and is searchable
- Configurable back pressure and prioritised queues between processors
- Guaranteed delivery based on a write-ahead log and content repository
- Zero-leader clustering, with Kubernetes clustering and a Kubernetes ConfigMap state provider documented
- Git-based flow registry clients for GitHub, GitLab, Bitbucket and Azure DevOps in NiFi 2
- Python-based processors (beta) alongside Java processors
Pros and cons
Pros
- Free and open source under the Apache License 2.0
- Visual flow design with live control and back pressure
- Detailed data provenance for tracing each piece of data
- Flow versioning in Git through NiFi 2 registry clients
Cons
- You install, secure, cluster and upgrade it yourself; there is no managed edition from the Apache project
- NiFi 2 requires Java 21, and NiFi 1.x is past end of support, so older installs face a migration
- Python processors are still marked beta in the administration guide
- NiFi Registry is deprecated and planned for removal in NiFi 3.0, so registry users need to move to Git-based clients
Pricing
Apache NiFi is free and open source under the Apache License 2.0; your cost is the servers or cluster you run it on. The Apache project does not sell a managed edition. Snowflake Openflow, a commercial Snowflake service, is documented by Snowflake as built on Apache NiFi and is billed through Snowflake, so check Snowflake's pricing if you want NiFi-style flows as a managed service.
Pricing checked on the vendor's official page on 7 November 2026. Prices change; confirm before buying.
Who it is best for
Platform and integration teams that move files, events and records between many systems continuously and want a visual, self-hosted flow tool with provenance.
Who should look elsewhere
- Teams that only need to copy SaaS and database data into a warehouse with managed connectors: see Fivetran alternatives.
- Teams that need to schedule dependent jobs across many tools, where an orchestrator such as Apache Airflow fits better.
Verdict
Apache NiFi is a capable, free option for continuous data movement between many kinds of systems, with provenance and live flow control that most ELT tools do not offer. The trade-off is operations: you run the cluster, keep up with Java 21 and NiFi 2, and plan around the deprecation of NiFi Registry. If you want warehouse loading without infrastructure, a managed ELT service is a simpler fit.
Frequently asked questions
Is Apache NiFi free?
Yes. NiFi is open source under the Apache License 2.0. You pay only for the infrastructure you run it on. Snowflake Openflow, which Snowflake says is built on Apache NiFi, is a separate paid Snowflake service.
Is NiFi 1.x still supported?
No. The NiFi download page lists an end-of-support date of 8 December 2024 for NiFi 1.28, the last 1.x minor release, and encourages users to upgrade to NiFi 2.
Is NiFi Registry still needed?
No. The NiFi site says NiFi Registry has been deprecated after a community vote, with removal planned for NiFi 3.0, and recommends the Git-based flow registry clients introduced in NiFi 2.
Sources
- Apache NiFi downloads and release status
- Apache NiFi Registry deprecation and Git-based registry clients
- Apache NiFi administration guide (system requirements)
- Apache NiFi overview
- About Snowflake Openflow (built on Apache NiFi)
Checked November 2026.
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