RedStore

Free plan APILinuxMacSelf-hosted

What RedStore is

RedStore is a self-hosted RDF triplestore written in C using the Redland library. It provides an HTTP interface and built-in server for working with RDF, including SPARQL queries and graph-store operations. Supported standards include SPARQL 1.0 Query, SPARQL 1.1 Protocol for RDF, SPARQL 1.1 Graph Store HTTP Protocol, and SPARQL 1.1 Service Description. RedStore supports a wide range of RDF formats, including Turtle. Storage options include hashes, MySQL, memory, PostgreSQL, SQLite, and Virtuoso, with hashes as the default; a storage module must support contexts. The HTTP interface can load a URI at startup or receive RDF files by HTTP PUT, while rdfproc supports offline operations. The project identifies Redland as its only runtime dependency, with minimum versions of raptor2 2.0.4, rasqal 0.9.27, and redland 1.0.14. Installation uses an automake process involving configure, make, and make install. The project includes unit and integration tests and says a Mac OS X app is available. RedStore is free under GPL version 3 or any later version at the user's option.

Who it suits

RedStore suits developers who need a self-hosted RDF store with HTTP and SPARQL access. It also offers offline operations through rdfproc and several Redland-backed storage options.

What it does well

Includes a built-in HTTP server and interface
Supports SPARQL 1.1 protocol and graph-store standards
Offers several Redland storage modules
Compatible with rdfproc for offline operations

What to know first

Requires Redland and listed minimum library versions
Installation uses an automake build process
Storage modules must support contexts

Limits

The free plan is the GPL-licensed self-hosted software. The listed minimum library versions are raptor2 2.0.4, rasqal 0.9.27, and redland 1.0.14.

Plans

Plan	Billed and limits	Price
RedStore	GPL-3.0-or-later · self-hosted software	Free

As github.com lists them, read 8 Oct 2026. The maker's own page has the final word.

Getting started

Open the RedStore project website on GitHub.
Choose a supported environment: Linux, macOS, API use, or self-hosting.
Install Redland with raptor2 2.0.4 or later, rasqal 0.9.27 or later, and redland 1.0.14 or later.
Build and install with configure, make, and make install.
Use the HTTP interface to load a URI at startup or send RDF files with HTTP PUT.

Verdict

RedStore combines HTTP access, SPARQL standards support, and multiple storage choices in a self-hosted RDF triplestore. Its listed library requirements and build process are worth considering before installation.

Questions

How much does RedStore cost?

The listed plan is free.

What platforms does RedStore support?

The listed platforms are Linux, macOS, API, and self-hosted deployment. The project also says a Mac OS X app is available.

Which RDF and SPARQL formats does it support?

The project describes support for a wide range of RDF formats, including Turtle. Its listed standards include SPARQL 1.0 Query and three SPARQL 1.1 standards: Protocol for RDF, Graph Store HTTP Protocol, and Service Description.

What storage options are available?

Supported Redland modules include hashes, MySQL, memory, PostgreSQL, SQLite, and Virtuoso, provided the module supports contexts. Hashes is the default.

What license does RedStore use?

It is distributed under the GNU General Public License, version 3 or any later version.

Who maintains RedStore?

The project names Nicholas J. Humfrey as author and maintainer.

Facts from RedStore's own pages

HTTP interface: RedStore has an HTTP interface and a built-in HTTP server. · github.com, 8 Oct 2026
Installation: The README describes installation through the standard automake build process using configure, make, and make install. · github.com, 8 Oct 2026
License: RedStore is free software under the GNU General Public License version 3 or, at the user's option, any later version. · github.com, 8 Oct 2026
Loading data: The HTTP interface can load a URI at startup or accept RDF files via HTTP PUT. · github.com, 7 Oct 2026
Mac app: The project says a Mac OS X app is available. · github.com, 8 Oct 2026
macOS app: The README states that a Mac OS X app is available. · github.com, 7 Oct 2026
Maintainer: The README names Nicholas J. Humfrey and gives an aelius.com email address. · github.com, 7 Oct 2026
Maker: The README names Nicholas J. Humfrey as the project author. · github.com, 8 Oct 2026
Offline operations: RedStore is compatible with the rdfproc command-line tool for offline operations. · github.com, 8 Oct 2026
Product: RedStore is a lightweight RDF triplestore written in C using the Redland library. · github.com, 8 Oct 2026
Purpose: RedStore is a lightweight RDF triplestore written in C using the Redland library. · github.com, 7 Oct 2026
Querying: The README demonstrates querying the store through its /sparql endpoint with the SPARQL Query Tool. · github.com, 7 Oct 2026
RDF formats: The project says RedStore supports a wide range of RDF formats. · github.com, 8 Oct 2026
Requirements: The listed minimum Redland library requirements are raptor2 2.0.4, rasqal 0.9.27, and redland 1.0.14. · github.com, 8 Oct 2026
Runtime dependency: The README identifies Redland as RedStore's only runtime dependency. · github.com, 7 Oct 2026
Standards: It supports SPARQL 1.0 Query, SPARQL 1.1 Protocol for RDF, SPARQL 1.1 Graph Store HTTP Protocol, and SPARQL 1.1 Service Description. · github.com, 8 Oct 2026
Storage: Supported Redland storage modules include hashes, MySQL, memory, PostgreSQL, SQLite, and Virtuoso; hashes is the default. · github.com, 7 Oct 2026
Storage options: Supported Redland storage modules include hashes (the default), MySQL, memory, PostgreSQL, SQLite, and Virtuoso, provided the module supports contexts. · github.com, 8 Oct 2026
Support: The README lists the author's email address as [email protected]. · github.com, 8 Oct 2026
Testing: The project lists a unit and integration test suite as a feature. · github.com, 8 Oct 2026

Where RedStore stands on Freedom251

RDF Databases#14 of 26