OphanimFlow review
A focused open-source collector for operators who want self-hosted flow visibility.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
OphanimFlow is an open-source, self-hosted bandwidth monitoring toolkit for network operators and service providers. It collects NetFlow, IPFIX and sFlow records, classifies and preprocesses traffic, and renders bandwidth graphs for hosts on specified networks. Its feature set also covers traffic accounting by host and IP address, configurable collector ports and sampling rates, automatic rotation and flushing of older data, a web-based configuration interface, and REST endpoints for graphs and traffic summaries.
The strongest fit is its focused flow-collection workflow. OphanimFlow brings collection, traffic classification, accounting, graphing, and data handling into one self-hosted tool rather than centering on a broader platform. Operators can configure collector ports and sampling rates, then review per-host bandwidth graphs and traffic summaries through the web interface or REST endpoints. That combination suits teams that want direct visibility into flow data and control over how the collector stores and rotates it.
Deployment is oriented toward self-managed infrastructure, with published setup instructions targeting FreeBSD and Debian systems. That makes OphanimFlow a practical choice for teams comfortable maintaining their own collector and web interface, but a less natural fit for buyers seeking a managed service or a wider monitoring environment. Choose it when open-source, self-hosted flow collection is the priority; consider another product if the requirement is a broader platform around integrations, alerting, or additional operational tooling.
OphanimFlow pros and cons
- Where it wins
- Collects NetFlow, IPFIX and sFlow data
- Provides per-host graphs and traffic accounting
- Offers web configuration and REST endpoints
- Where it doesn't
- Setup instructions target FreeBSD and Debian systems
- Focuses on flow collection rather than a broad monitoring suite
- Published repository version is 0.0.7 rev 144
OphanimFlow fact sheet, pricing and score →
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