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Dozzle is a lightweight, open-source log viewer for Docker, Swarm, and Kubernetes. It streams container logs in real time and allows searching, filtering by level or time range, and querying JSON fields with SQL from the browser.
DuckDB is an open-source SQL OLAP database management system. It is an analytical database that runs in-process and can be deployed from edge devices to servers with hundreds of cores. It offers idiomatic APIs for major programming languages and reads and writes formats such as CSV, JSON, Parquet, and Iceberg, locally or in object storage.
Apache Flink is a distributed data processing engine for stateful computations over data streams. It offers exactly-once state consistency, event-time processing, layered APIs including SQL on stream and batch data, and flexible deployment with savepoints. Its stated use cases include event-driven applications, stream and batch analytics, and data pipelines and ETL.
fractal is a tool for hierarchical agent loops with recursive self-organization, in which autonomous agent loops arrange themselves into a tree of git worktrees and spawn child nodes for separable subtasks. Hard caps on iterations, depth, children, cost and time bound each loop, and run metadata, including cost, is stored in a local SQLite database. Nodes run their agents without permission prompts by default.
Franchise is an open-source SQL notebook for desktop. It runs a version of the SQLite engine in the browser, so processing happens locally, and users can load CSV, JSON, or XLSX files by dropping them in. A terminal command sets up a database bridge for connecting to PostgreSQL, MySQL, or BigQuery. Published notebooks can be downloaded as HTML documents.
fselect is a command-line tool for finding files with SQL-like queries. It supports complex queries, subqueries across directories, aggregate and other functions, searching within archives, and image, EXIF and audio metadata searches. Output can be formatted as CSV, JSON and other formats, and an interactive mode is available.
Dnote is a command-line notebook that stores notes in a SQLite file and provides full-text search. It ships as a single binary without dependencies, works with the user's own text editor, and is free and open source. An optional self-hosted server with a REST API enables syncing notes across devices.
GoalKicker hosts a collection of free programming books titled Programming Notes for Professionals, covering topics such as Android, C, C#, CSS, HTML5, iOS, Java, JavaScript, PHP, Python and SQL Server. The site states the books are updated weekly and that GoalKicker was acquired in June 2023.
gorss is a simple RSS/Atom feed reader written in Go for the terminal. It reads feeds, stores data in SQLite, and supports OPML feed loading and XDG configuration. It offers keyboard shortcuts, configurable highlights, and built-in themes with runtime switching. Prebuilt binaries are provided for Linux and OSX.
GritQL is a declarative query language from Grit for searching and modifying source code. It lets users search with code snippets and metavariables, define custom lints, and apply auto-fix rules, and it supports rewriting JavaScript/TypeScript, Python, JSON, Java, Terraform, Solidity, CSS, Markdown, YAML, Rust, Go and SQL.
PandasAI is an open-source library that enables conversational data analysis using large language models and retrieval-augmented generation. It allows users to interact with databases or datalakes supporting SQL, CSV, and parquet file formats.
Impala is a distributed C++ query engine for SQL queries over petabytes of data stored in Apache Hadoop clusters. It supports data in HDFS, Apache HBase and Amazon S3, window functions and subqueries, and uses LLVM for on-the-fly code generation. It is Apache-licensed and open source, and the repository is a mirror of Apache Impala.
Kener is a free, open-source status page and uptime monitor that can be self-hosted with Docker. It monitors API, Ping, TCP, DNS, SSL, SQL, Heartbeat, GameDig, and gRPC services with configurable check intervals and thresholds, and it provides incident management, maintenance scheduling, notifications, embeddable widgets, and a REST API.
Kismet is a sniffer, WIDS, and wardriving tool for Wi-Fi, Bluetooth, Zigbee, RF, and more, running on Linux and macOS. It provides distributed capture over TCP sockets or websockets, a unified kismetdb logfile based on sqlite3, and a REST-like API for its embedded webserver.
Kutt is a self-hosted URL shortener with custom domain support. It allows creating and editing links, setting custom URLs, passwords and expiration times, viewing statistics, and managing users. It supports SQLite, Postgres and MySQL databases, OpenID Connect login and a RESTful API.
linkding is a self-hosted bookmarking service described as minimal, fast and easy to set up. It can fetch website metadata, create archived snapshots and apply bulk editing, and it supports multiple users. It runs as a single Docker container using SQLite, with browser extensions for Firefox and Chrome and a REST API.
MinusX is an open source agentic business intelligence platform that combines a data agent with a BI tool. It answers questions, builds dashboards and sets alerts, with slides and data stories, visualizations and a SQL GUI. It can be self-hosted or used via MinusX Cloud, and the source is available and inspectable.
The MultiDark Database provided results from cosmological simulations performed within the MultiDark project. It could be queried by entering SQL statements directly into a Query Form, and access to the public and private databases was password protected, requiring registration. The site notes that MultiDark has moved to CosmoSim, where its application is integrated, and the old server is no longer available.
Nushell is a cross-platform shell that works on Linux, macOS, BSD, and Windows. Its pipelines use structured data, and it reads formats including JSON, YAML, SQLite, and Excel. It operates on typed data and offers a plugin system for extension. Nushell is available as downloadable binaries, through package managers, in a GitHub Action, and as source code.
OnlineTextCompare is a free, browser-based two-way text diff and merge tool. It requires no signup or installation, and all comparisons run locally in the user's web browser for privacy and security. The tool highlights differences between two text inputs using red and green arrows, supporting use cases such as reviewing edits and merging content changes. It also offers additional comparison tools for formats including HTML, CSS, JavaScript, JSON, XML, SQL, Excel, PDF, and lists.
onWatch is an open-source tool developed by onllm-dev that tracks AI API quotas for services including Synthetic, Z.ai, Anthropic Claude Code, Codex, GitHub Copilot and Antigravity in real time. It functions as a lightweight background daemon that uses less than 50MB of RAM, stores data in SQLite, and provides a Material Design 3 dashboard. The tool does not collect telemetry.
Opengist is an open-source, self-hosted pastebin powered by Git. Snippets are stored in Git repositories and can be managed with standard Git commands or a web interface. It supports public, unlisted, and private snippets, multiple files per snippet, revisions and diffs, syntax highlighting, and login through OAuth2 providers, LDAP, and passkeys. It is written in Go and can run as a single binary, Docker image, or Kubernetes deployment, backed by SQLite, PostgreSQL, or MySQL.
OverAPI.com is a site that collects all the cheat sheets. It organizes reference sheets for programming languages, frameworks, and developer tools, listing topics from Python and JavaScript to HTML, SQL, and Linux.
The MDM-Portal is a meta-data registry for creating, analyzing, sharing and reusing medical forms. It serves as infrastructure for academic non-commercial medical research and provides core data sets, common data elements, data standards, code lists and value sets. Researchers can view, discuss, download and export forms in formats including PDF, CSV, Excel, SQL, SPSS and R.
