For developers, who are building real-time data-driven applications, Redis is the preferred, fastest, and most feature-rich cache, data structure server, and document and vector query engine.

🤖 Powerful asynchronous state management, server-state utilities and data fetching for the web. TS/JS, React Query, Solid Query, Svelte Query and Vue Query.

Query Engine for AI Analytics: Build self-reasoning agents across all your live data

Extremely fast Query Engine for DataFrames, written in Rust

Database diagrams editor that allows you to visualize and design your DB with a single query.

A query builder for PostgreSQL, MySQL, CockroachDB, SQL Server, SQLite3 and Oracle, designed to be flexible, portable, and fun to use.

A reactive notebook for Python — run reproducible experiments, query with SQL, execute as a script, deploy as an app, and version with git. Stored as pure Python. All in a modern, AI-native editor.

Examples of how to do query, style, dom, ajax, event etc like jQuery with plain javascript.

Ip2region is an offline IP-to-Region localization library and IP data management framework with both IPv4 and IPv6 supports, 10-microsecond level query efficiency, xdb search client for many programming languages

🧰 The Rust SQL Toolkit. An async, pure Rust SQL crate featuring compile-time checked queries without a DSL. Supports PostgreSQL, MySQL, and SQLite.

The official home of the Presto distributed SQL query engine for big data

GUI for ChatGPT API and many LLMs. Supports agents, file-based QA, GPT finetuning and query with web search. All with a neat UI.

GraphQL is a query language and execution engine tied to any backend service.

EF Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations.

🥑 ArangoDB is a native multi-model database with flexible data models for documents, graphs, and key-values. Build high performance applications using a convenient SQL-like query language or JavaScript extensions.

Gel supercharges Postgres with a modern data model, graph queries, Auth & AI solutions, and much more.

A safe, extensible ORM and Query Builder for Rust

A type-safe TypeScript SQL query builder

Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)

A curated list of Domain-Driven Design (DDD), Command Query Responsibility Segregation (CQRS), Event Sourcing, and Event Storming resources

eBPF-powered network observability for Kubernetes. Indexes L4/L7 traffic with full K8s context, decrypts TLS without keys. Queryable by AI agents via MCP and humans via dashboard.

The world's fastest open query engine for sub-second analytics both on and off the data lakehouse. With the flexibility to support nearly any scenario, StarRocks provides best-in-class performance for multi-dimensional analytics, real-time analytics, and ad-hoc queries. A Linux Foundation project.

A fast & lightweight polyfill for min/max-width CSS3 Media Queries (for IE 6-8, and more)

A tool for generating code based on a GraphQL schema and GraphQL operations (query/mutation/subscription), with flexible support for custom plugins.

Open-source, low-latency key/value engine built on Valkey with query subscriptions and hierarchical storage tiers.

An open source SDK for logging, storing, querying, and visualizing multimodal and multi-rate data

Type-safe search params state manager for React frameworks - Like useState, but stored in the URL query string.

CodeQL: the libraries and queries that power security researchers around the world, as well as code scanning in GitHub Advanced Security

A data index and query language over Markdown files, for https://obsidian.md/.

Apache DataFusion SQL Query Engine