HASH vs RDFox
HASH
hash.ai
RDFox
oxfordsemantic.techSide by side
| Figure | HASH | RDFox |
|---|---|---|
| Price from | $20/mo | Free |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 4 | 4 |
| Spec score · Knowledge Graph Software | 8.6 (#6) | 8.4 (#10) |
| Company | HASH says it is based in London, Berlin, and New York. | Oxford Semantic Technologies is an Oxford University spin-out acquired by Samsung Electronics in 2024. |
| Founded | 2019 | 2017 |
| Headquarters | London, Berlin and New York | Oxford, United Kingdom |
| Integrations | The published integration directory includes services such as Slack, Google Drive, Gmail, Notion, GitHub, SAP S/4HANA, Snowflake, and Postgres. | RDFox was made available on AWS Marketplace through a DataLens partnership with pay-as-you-go deployment and connectors for SQL, CSV, XML, JSON, REST and unstructured data. |
| Product | HASH describes itself as an open-source platform that turns organizational information into an continuously updated world model combining a knowledge graph with a process graph. | RDFox is a main-memory, scalable centralized data store for RDF graph data queried with SPARQL 1.1. |
| Security | HASH says its information security program follows the SOC 2 framework and that independent third-party assessments, including penetration testing, occur at least annually. | RDFox v7.0 added encryption at rest and client-certificate authentication using mutual TLS for endpoint and remote-shell requests. |
| Self-hosting | HASH can be self-hosted, but its guide says this requires technical knowledge and recommends it for advanced users. | The product documentation covers cloud, on-premises, edge and on-device deployment scenarios. |
| Support | The download page directs users to contact support or consult the user guide for help. | Oxford Semantic Technologies says it aims to reply to contact messages within two working days and provides an RDFox Community Slack channel. |
Plans
RDFox
- Free evaluationFree
- RDFox free evaluation licenseFree
- AWS Marketplace RDFoxPriced on request
- RDFox commercial licensePriced on request
In their own words
HASH
HASH is an open-source platform that models an organization with a knowledge graph and a process graph. The continuously updated model supports analytics, workflow automation, what-if simulations, AI agents, and detailed access governance. HASH can ingest connected applications and structured data, infer entities from unstructured material, and passively collect selected web information. Its bitemporal graph records transaction time and decision time, letting users inspect earlier states and provenance without overwriting records. Flows combine triggers, actions, filters, and waits and can run manually, automatically, or programmatically. Agents can answer questions and take actions. Integrations include Slack, Google Drive, Gmail, Notion, GitHub, SAP S/4HANA, Snowflake, and Postgres. Two-way synchronization is available where supported; some services allow only read-only sync or one-time imports. A browser extension can collect selected browsing information, let agents access sites for users, and launch flows. HASH is offered through web, API, browser extension, or self-hosted deployment. The free plan includes 10GB storage and 50 entities per manual scraping job. Plus starts at $20 a month when billed annually.
RDFox
RDFox is a main-memory data store for centralized RDF graphs, queried with SPARQL 1.1. It represents rules and ontological axioms with Datalog, OWL 2 and SWRL, and updates rule consequences as data changes; it can process 2–3 million new-fact inferences per second. Its supported knowledge-graph technologies include RDF, SPARQL 1.1, Datalog, SWRL, OWL 2 RL and SHACL. Java applications can connect through a native API, or RDFox can run as a standalone server through a REST API. Import and export formats include CSV, JSON, N-Triples, Turtle, TriG and OWL 2 Functional-Style Syntax. It can replicate knowledge and data changes across servers to maintain service during an outage, and deployments are described for cloud, on-premises, on-device and edge use. RDFox runs on Linux, macOS and Windows. Security features include encryption at rest, mutual-TLS client-certificate authentication and OpenID Connect single sign-on. Pricing is on request; the free 30-day evaluation license is restricted to evaluation and non-commercial use.