Open Source Ruby Database Software

Grafana OSS is the leading open-source platform for visualization and observability. It enables teams to query, visualize, alert on, and explore telemetry data from multiple sources in a single interface. With support for 100+ data source plugins—including Prometheus, Loki, Elasticsearch, InfluxDB, SQL/NoSQL databases, and OpenTelemetry—Grafana helps teams correlate metrics, logs, and traces across applications and infrastructure. Users can build interactive dashboards with rich visualizations, template variables, and reusable panels to monitor systems and troubleshoot issues in real time. Grafana includes capabilities such as ad hoc data exploration, alerting, annotations, and flexible query support. Its extensible plugin ecosystem integrates with cloud platforms, databases, and developer tools—allowing teams to build observability workflows without vendor lock-in. The easiest way to get started with Grafana is with Grafana Cloud, our fully managed, full-stack observability platform.

Logstash is a server-side data processing pipeline that dynamically ingests data from numerous sources, transforms it, and ships it to your favorite “stash” regardless of format or complexity. It supports and ingests data of all shapes, sizes and sources, dynamically transforms and prepares this data, and transports it to the output of your choice. Logstash is extensible, with over 200 plugins available to let you create and configure your pipeline how you choose.

with_advisory_lock is a Ruby gem that provides a simple and thread-safe way to use PostgreSQL advisory locks within Ruby applications. It allows developers to wrap critical code sections with database-level locks to prevent race conditions across concurrent processes or threads. It’s especially useful in distributed systems, background job processing, or scheduled tasks where application-level mutexes aren't sufficient.

Tokyo Cabinet is the successor of QDBM, a high performance database library similar to the DBM family. It also supports hash and B-tree databases and does not require any server process. The overall speed is improved compared to QDBM.

LiteSQL is a codegenerator and C++ library that integrates C++ objects tightly to relational database and thus provides an object persistence layer. LiteSQL supports SQLite3, PostgreSQL, MySQL and oracle as backends.

Redland is a set of object-based, modular and portable C RDF libraries providing RDF APIs for the graph, triple storage (librdf), RDF/XML parsing and serializing (Raptor), SPARQL RDF querying (Rasqal). Language APIs in Perl, PHP, Python, Ruby and others.

DataVision is a reporting tool similar to Crystal Reports. DV supports many data sources (JDBC, files) and many output formats (HTML, XML, PDF, LaTeX, Excel, delimited files, DocBook). DV includes a GUI editor. DV is embeddable. Reports are XML-based.

Displays/manages exercise data like speed, time, heart rate etc. Import from Garmin "Forerunner"-devices and export of the track-data to Google Earth is possible as well.

Address WebBook is simple web application programmed in Ruby on Rails with possibility of categorizing posted people.

Web application to show information about empty homes. Some statistics can be gathered for each city, search homes, comment them, etc.

Blazer is a business-intelligence engine for Rails that lets teams write SQL in the browser, visualize the results, and share insights without leaving their app. It turns raw database queries into charts, tables, and dashboards, so non-engineers can explore data with minimal friction. Queries can accept parameters, enabling reusable reports for different time ranges, segments, or customers. Access controls and audit trails help teams manage who can run, edit, or view sensitive analyses. Scheduled checks and alerts turn BI into proactive monitoring by notifying you when metrics cross thresholds or regress. Because it’s a Rails engine, it integrates into your app’s authentication, layouts, and deployment workflows, reducing the overhead of maintaining a separate BI stack.

This is a recipe manager written in Ruby with MySQL database (rails) that allows easy sorting and searching using group tags. It will have integrated support for unit conversion and for the resizing of portions.

COLDIC is an integrated lexicographic platform for creation and management of electronic lexica. Generates itself automatically from a DTD with the database schema and provides human interfaces (query and insert tools) and machine interfaces(webservices)

Cedrus is a graphical administration and monitoring tool for PostgreSQL DBMS. Inspired on Oracle's Enterprise Manager, it collects useful information over one or more PostgreSQL instances, showing it in a nice interface with useful graphs and reports.

The Enterprise Data Warehouse Metadata Browser developed at the Northwestern Medical Faculty Foundation.

ErosOnRails is a framework developed for cataloging works of art in cultural heritage institutions.

Evil Seed is a Ruby tool for seeding databases with realistic, localized, and structured test data. It integrates with Rails and uses Faker, but allows more advanced customization like data relationships and repeatable sequences. It’s ideal for developers who need high-quality sample data for testing or demos.

FGL is a tightly-integrated self-contained development & execution environment utilizing best-of-breed programming tools and methodologies, optimized web/application server, highly-scalable relational/object database, and robust extension interface.

This project is an attempt to develop a system whereby existing arguments for arbitrary debates may be gathered and accessed quickly and efficiently, to prevent re-invention of common arguments.

HIPAATalk - Contains stored procedures and sample DTS packages for parsing and converting X12 to flat tables and creating HIPAA-compliant X12 files. Currently reads 820, 834, 835, 837P/I/D, 841, 997, TA1, and creates 835, 837P/I/D, 834, 277U, 997, TA1.

JarHunt is a simple Ruby/Rails app that allows you to upload and catalog jar files that you work with every day. The jar files are then searchable, making tracking down which class files belong to which java archive easy and fast.

This project aims to provide a web-based member management system for a budo organization. The data base application aims to handle data concering each club, subgroup and member and allow for frequently administrative occuring tasks to be done with ease

LabDiary is a program for managing laboratory experiments in a sophisticated way. It is very easy to use - you can link experiments logically with each other, associate files to an experiment and structure all your data.

PLEASE NOTE THAT THIS PROJECT HAS MOVED TO http://lafcadio.rubyforge.org/. Lafcadio is an object-relational mapping library for Ruby and MySQL.