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.

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.

A flexible, Ruby-based data-mapping and persistence toolkit, designed as an alternative to traditional ORMs.

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.

Easily create living style guides/front-end style guides/pattern libraries by adding Markdown documentation to your Sass project. By clicking the color swatch in the style guide, users can copy the hex code of the color (useful for designers). When pointing the cursor on the variable name, it will be copied on click instead (useful for developers). The output will respect newlines. You can add any CSS to each example if it helps to make it better in the style guide only. You can set options to apply to all commands or all commands giving a name. This is useful when you depend on Haml or other templating engines. If you want your style guide to work as an API, you might have views already written somewhere else and don’t want to write the same HTML code into the style guide.

Motor Admin is a no-code admin panel that can be deployed for any application in under a minute. It allows users to search, create, update, and delete data entries, create custom actions, and build reports without writing code.

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.

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.

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.

RDQS is a shell for querying various datasources such as SQL from a common interface. It does/should offer different data outputs, syntax highlighting, (grammatical) completion, shell interaction (e.g. backticks) and programmability

mx is a Ruby/Rails code base with broad application in evolutionary biology, it includes general functionality for matrix handling, sequence management, ontology construction, specimen handling, taxonomic catalogs, taxonomic descriptions and more

Ruby/LDAP is an extension library for Ruby. It provides the interface to some LDAP libraries (e.g. OpenLDAP, Netscape SDK and Active Directory). The common API for application development is described in RFC1823 and is supported by Ruby/LDAP.

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.

The Medlane project is an attempt to create a set of tools that will enable librarians to move from the standard MARC (MAchine Readable Cataloging) format to a new library/museum XML format. This move will ensure traditional library/museum data remains

MysqlSpy is a perl/Tk tool to Administrate locally and remote Mysql Database. You are able to Monitor, subqueries, and change data from any Mysql Database.

A ruby-activeRecord-MySQL application which stores data about plants using the Sinatra ruby framework. Code should work on 2.0.0 ruby version though modern versions should be supported too. (Up to 2.4.6) Also, database supposed to have Hungarian information hence application supports UTF-8. The dummy plant is also written in Hungarian text.

RailsDB is a web application written in Ruby using the Ruby on Rails web framework to provide a generic interface to popular open source databases such as MySQL, PostgreSQL, and SQLite.

A software for logging flight movements on small airfields or glider sites and automatically generating statistics and log books.

The Registry Server (jUDDI) offers a mechanism for humans or software applications to advertise and discover Web services. The Java Web Services Developer Pack (Java WSDP) Registry Server implements Version 2 of the Universal Description, Discovery and I

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.