Search Results for "metadata"
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Showing 131 open source projects for "metadata"
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WhoDB
A lightweight next-gen data explorer
WhoDB is a lightweight audit logging extension for PostgreSQL that helps track who accessed what data and when. It uses logical decoding and hooks into PostgreSQL internals to log query metadata, user identities, and timestamps in a separate audit schema. WhoDB is useful for compliance, security monitoring, and debugging in multi-user environments. -
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Apache Impala
Apache Impala
...Impala is integrated with native Hadoop security and Kerberos for authentication, and via the Ranger module, you can ensure that the right users and applications are authorized for the right data. Utilize the same file and data formats and metadata, security, and resource management frameworks as your Hadoop deployment, with no redundant infrastructure or data conversion/duplication. For Apache Hive users, Impala utilizes the same metadata and ODBC driver. Like Hive, Impala supports SQL, so you don't have to worry about reinventing the implementation wheel. With Impala, more users, whether using SQL queries or BI applications, can interact with more data through a single repository and metadata stored from source through analysis. -
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DBeaver
Free universal database tool
DBeaver is a free, multi-platform database tool that supports any database having a JDBC driver. It is useful for developers, SQL programmers, database administrators and analysts. DBeaver comes with plenty of great features such as metadata and SQL editors, ERD, data export/import/migration and more. Plugins are available for certain databases, and there are also several database management utilities. DBeaver’s Enterprise Edition provides even more features and supports non-JDBC datasources. -
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Datacap
DataCap is integrated software for data transformation
Datacap is an open-source data catalog and governance tool that helps organizations manage and document their data assets. It provides metadata management, lineage tracking, and collaboration features to ensure data transparency and quality. Datacap is designed for teams that need a lightweight, self-hosted solution to organize and govern their data ecosystems. -
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Koillection
Self-hosted service allowing users to manage collection
Koillection is a self-hosted web app for managing personal collections such as books, video games, electronics, and more. It allows users to track items, add metadata, upload images, and categorize collections by tags and types. Built with Symfony and Vue.js, Koillection is perfect for hobbyists and collectors seeking a customizable, private cataloging tool. -
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Magda
A federated data catalog for all your big and small data
Magda is an open-source data catalog system designed to make datasets easier to find, access, and use. Built for government and enterprise use, it supports harvesting metadata from multiple sources, managing data access policies, and integrating with data APIs. Magda is highly customizable and ideal for building open data portals or internal data discovery tools. -
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ZeusDB Vector Database
Blazing-fast vector DB with similarity search and metadata filtering
ZeusDB is a vector database built for fast, scalable similarity search with strong production ergonomics. It combines high-performance approximate nearest neighbor indexes with clean APIs and metadata filtering so applications can retrieve semantically relevant items at low latency. The storage layer is designed for durability and growth, supporting sharding, replication, and background compaction while keeping query tails predictable. Developers get multiple ingestion paths—batch, streaming, and upsert—making it easy to keep embeddings synchronized as content changes. ... -
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GeoIP2 Reader for Go
Unofficial MaxMind GeoIP2 Reader for Go
...If you only need several fields, you may get superior performance by using maxminddb's Lookup directly with a result struct that only contains the required fields. (See example_test.go in the maxminddb repository for an example of this.) Metadata takes no arguments and returns a struct containing metadata about the MaxMind database in use by the Reader. Enterprise takes an IP address as a net.IP struct and returns an Enterprise struct and/or an error. This is intended to be used with the GeoIP2 Enterprise database. -
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MusicBrainz Server
Server for the MusicBrainz project (website, API, database tools)
MusicBrainz Server is the web application powering the MusicBrainz open music metadata database. It handles artist, album, track, and recording entities and allows users to submit edits, vote, merge duplicates, and browse relationships like releases or linked ISRCs. The server supports full-text search, advanced filtering, web APIs, data dumps, and integration with other services like Cover Art Archive and Discogs. -
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RAG API
ID-based RAG FastAPI: Integration with Langchain and PostgreSQL
rag_api is an open-source REST API for building Retrieval-Augmented Generation (RAG) systems using LLMs like GPT. It lets users index documents, search semantically, and retrieve relevant content for use in generative AI workflows. Designed for rapid prototyping, it is ideal for chatbot development, document assistants, and knowledge-based LLM apps. -
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Commanded EventStore
Event store using PostgreSQL for persistence
Commanded EventStore is an Elixir-based event store built for event-sourced systems using the Commanded framework. It stores domain events as immutable facts and provides mechanisms for publishing, persisting, and querying events. Built with PostgreSQL as its backend, it ensures strong consistency and is optimized for CQRS architectures. -
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Picsur
An easy to use, selfhostable image sharing service like Imgur
Picsur is a lightweight, self-hosted image hosting service inspired by Imgur. Built using Go and Vue, it offers fast image uploads, user accounts, and a minimal UI. Picsur is designed for private or small-scale image sharing and gives users full control over their data and hosting environment. -
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ddia
Designing Data-Intensive Application
...The repository organizes the book content into chapters about data systems, storage, encoding, replication, partitioning, transactions, distributed systems, consistency, and derived data. It is built for readers who want deep systems design material in Chinese with a structured web reading experience. The project also includes site assets, metadata, layouts, internationalization files, and build configuration for generating the online version. It is best understood as a technical translation, study resource, and open educational reference rather than an application framework. -
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MyDumper
MyDumper project
...Parallelism (hence, speed) and performance (avoids expensive character set conversion routines, efficient code overall) Easier to manage output (separate files for tables, dump metadata, etc, easy to view/parse data) Consistency - maintains snapshot across all threads, provides accurate master and slave log positions, etc. Manageability - supports PCRE for specifying database and tables inclusions and exclusions. -
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JabRef Bibliography Management
Graphical Java application for managing BibTeX and biblatex
JabRef is an open-source, cross-platform citation and reference management tool. Stay on top of your literature: JabRef helps you to collect and organize sources, find the paper you need and discover the latest research. JabRef is available free of charge and is actively developed. It supports you in every step of your research work. -
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SchemaCrawler
Free database schema discovery and comprehension tool
...SchemaCrawler supports almost any database that has a JDBC driver, but for convenience is bundled with drivers for some commonly used RDBMS systems. SchemaCrawler works with any operating system that supports Java SE 8 or better. SchemaCrawler is also a Java API that makes working with database metadata as easy as working with plain old Java objects. -
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Apache Iceberg
Apache Iceberg
...Iceberg brings the reliability and simplicity of SQL tables to big data while making it possible for engines like Spark, Trino, Flink, Presto, Hive, and Impala to safely work with the same tables, at the same time. The core Java library that tracks table snapshots and metadata is complete, but still evolving. Current work is focused on adding row-level deletes and upserts, and integration work with new engines like Flink and Hive. The Iceberg format specification is being actively updated and is open for comment. Until the specification is complete and released, it carries no compatibility guarantees. ... -
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Hop Monorepo
Hop monorepo
A JavaScript SDK is available for using and integrating with Hop. Import as ES6 module (e.g. Using TypeScript, babel, webpack). Import as commonJS module (e.g. Using Node.js directly or no ES6 modules). Supported network is only mainnetat the moment. As a trustless bridge, Hop allows users to force exit their tokens in the rare event where Bonders (market makers) don’t bond a user’s transfer fast enough. Hop offers users a fallback option to withdraw their tokens manually at the destination... -
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SQLAlchemy
The Database Toolkit for Python
SQLAlchemy is the Python SQL toolkit and Object Relational Mapper that gives application developers the full power and flexibility of SQL. SQLAlchemy provides a full suite of well known enterprise-level persistence patterns, designed for efficient and high-performing database access, adapted into a simple and Pythonic domain language. An industrial strength ORM, built from the core on the identity map, unit of work, and data mapper patterns. These patterns allow the transparent persistence... -
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SQL DAL Maker
A generator of DTO, Model, and DAO classes to access relational DB
...At the stage of code generation, the target database must exist and be available for JDBC connection. Generated code is being synchronized with the current database schema using "live" JDBC metadata. Written in Java. Implemented as plug-ins For Eclipse: https://marketplace.eclipse.org/content/sql-dal-maker For IntelliJ: https://plugins.jetbrains.com/plugin/7092 HOWTO install-update: http://sqldalmaker.sourceforge.net GitHub: https://github.com/panedrone/sqldalmaker Quick-Demo in mp4: https://github.com/panedrone/sqldalmaker/releases/tag/latest -
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Jailer
Database Subsetter and Relational Data Browser
Database Subsetting and Relational Data Browsing Tool. Navigate bidirectionally through the database by following foreign-key-based or user-defined relationships. Exports consistent, referentially intact row-sets from relational databases. Removes data w/o violating integrity. Generates topologically sorted SQL-DML, hierarchically structured XML. and DbUnit datasets. -
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DB Explorer
The modern AI‑first database client for developers DBAs and analyst
DB Explorer is a free, cross-platform database query tool and schema explorer built for developers, DBAs, and data analysts. It provides a clean graphical interface for connecting to multiple database systems, writing and executing SQL, exploring schemas, monitoring database health, and generating SQL queries using AI — all from a single application. Supported Databases: PostgreSQL, MySQL, MariaDB, SQL Server, Oracle, SQLite, Amazon DynamoDB, and any JDBC-compatible database. -
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Barman for PostgreSQL
Backup and Recovery Manager for PostgreSQL
Barman (backup and recovery manager) is an administration tool for disaster recovery of PostgreSQL servers written in Python. It allows to perform remote backups of multiple servers in business critical environments and help DBAs during the recovery phase. Barman's most wanted features include backup catalogs, retention policies, remote recovery, archiving and compression of WAL files and backups. Barman is written and maintained by PostgreSQL professionals 2ndQuadrant. -
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SCID Recast
The SCID 5 format in a clean, deterministic, modular architecture
...It preserves compatibility with existing si5 databases while restructuring the core into a clean, modular C library (libscidcore) with well‑defined boundaries for database, game model, search, engine integration, and metadata. The project emphasizes reproducibility, explicit invariants, a clear error model, and a stable foundation for supporting archival workflows and future tooling. -
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refbase - Web Reference Database
Online bibliographic manager for research groups. Zotero-compatible.
refbase is a web-based bibliographic manager which can import and export references in various formats (including BibTeX, Endnote, MODS XML, and OpenOffice). It can make formatted lists of citations and offers powerful searching, rich metadata, and RSS.
