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Apache Hadoop is an open-source project that develops software for reliable, scalable, distributed computing. Its library is a framework for distributed processing of large data sets across clusters of computers using simple programming models, scaling from single servers to thousands of machines with local computation and storage, and detecting failures at the application layer.
Heritrix is the Internet Archive's open-source web crawler project, described as extensible, web-scale and archival-quality. It is designed to respect robots.txt exclusion directives and META nofollow tags. Documentation covers getting started, operating, configuring crawl jobs and the REST API. It is free software under the Apache License, Version 2.0, with some files under other licenses.
Distributed deep learning training framework for TensorFlow, Keras, PyTorch, and Apache MXNet.
Docs to Markdown is a free Google Docs add-on that converts a Google Doc to simple, readable Markdown or HTML text. It lets users draft in Google Docs and convert part of a document, and requires minimal permissions. The source is published under the Apache 2.0 license.
HyperFrames lets AI agents compose videos by writing HTML, CSS & JS — originated by HeyGen, built for the community. Open source under Apache 2.0.
II-Commons-Skills provides fast, deterministic retrieval across arXiv, PubMed / PMC and supported US policy corpora, distributed as an npm package and CLI requiring Node.js 18 or newer. Basic usage works without authentication, and an API token is available for higher usage limits. It is licensed under Apache-2.0.
Indic-Keyboard is an AOSP keyboard ported to support more Indic languages. The project source is hosted on GitLab under an Apache License 2.0 and was created in January 2015. A Google Play store link is listed for the app.
Kokoro-82M is an open-weight text-to-speech model with 82 million parameters, released under the Apache 2.0 license. It delivers audio quality comparable to larger TTS models while being faster and more cost-efficient, and its weights can be deployed in both production and personal environments.
LLMKube is a Kubernetes operator for self-hosted large language model inference across heterogeneous GPU fleets supporting NVIDIA CUDA, AMD Vulkan, and Apple Silicon Metal. It supports runtimes including llama.cpp, vLLM, TGI, and mlx-server, offers multi-GPU sharding, model caching, and OpenAI-compatible endpoints. It is licensed under Apache-2.0 and designed for homelab and on-prem fleet deployment, and is actively developed.
LMFlow is a toolkit for finetuning and inference of large foundation models, presented as extensible, convenient and efficient. It offers support for custom optimizer training, conversation templates, speculative decoding, long context inference with position interpolation for LLaMA models, and Flash Attention-2. The project is released under the Apache-2.0 license and was made available on PyPI.
Apache Mahout builds an environment for quickly creating scalable, performant machine learning applications. Its current work centers on quantum machine learning in Python, with Qumat, a high-level library for writing quantum circuits once and running them on supported backends, and QDP, a GPU-accelerated engine that turns classical data into quantum states. The earlier Mahout Classic codebase is in maintenance mode.
Mixtral-8x7B-v0.1 is a pretrained generative Sparse Mixture of Experts large language model developed by Mistral AI, hosted on the Hugging Face platform under the mistralai/Mixtral-8x7B-v0.1 repository, and released under the Apache 2.0 license.
MLflow is an open source AI engineering platform for agents, LLMs, and ML models. It provides tools for debugging, evaluating, monitoring, and optimizing AI applications, including tracing, evaluation metrics, prompt management, an AI gateway, and an agent server. The project is released under the Apache 2.0 license.
Mochi is an open-source video generation model by Genmo, released under an Apache 2.0 license. The repository provides installation, weight downloads, a Gradio UI, CLI, and API, plus LoRA fine-tuning support and an inference harness.
myPhysicsLab is a site with interactive physics simulations, such as springs, pendulums, roller coasters and collisions. Simulations animate in real time and can be manipulated by dragging objects or changing parameters like gravity. Setups can be shared by URL, and numeric data can be obtained from simulations. The software is open source under the Apache 2.0 License, with source code on GitHub.
NVIDIA NeMo Speech is a framework built for researchers and developers working on speech AI, including automatic speech recognition and text-to-speech. The repository provides open weight checkpoints and demos through a Hugging Face collection. It is licensed under Apache-2.0 and has pivoted to focus on audio, speech, and multimodal LLMs.
Neuroph is a lightweight, open source Java neural network framework released under the Apache 2.0 license. It provides a Java library and a GUI editor, Neuroph Studio, based on the NetBeans Platform, for creating, training and saving neural networks. It supports architectures including Perceptron, Multi Layer Perceptron, Hopfield, Kohonen and RBF networks, and both supervised and unsupervised learning rules.
NeverWrite is a local-first knowledge workspace for notes and documents with AI assistance. Notes stay in a folder on the computer, and every AI edit arrives as a reviewable change that can be accepted, rejected or refined before it is written to the vault. It is free, open source under Apache 2.0, requires no account, and connects to models the user already pays for.
openHAB is a vendor- and technology-agnostic open source automation software for the home, developed in Java on Apache Karaf. Its pluggable architecture supports over 400 technologies and thousands of devices, with rules driven by time, events, scripts, actions, notifications and voice control. It runs on Linux, macOS, Windows, Raspberry Pi, Docker and Synology, and is accessed through web, iOS and Android apps. It runs on local hardware without requiring cloud services.
OpenLIT is an open-source agent harness engineering platform built on OpenTelemetry. It provides tracing, evaluations, guardrails, prompt and context management, and cost and GPU monitoring for the harness around AI agents and coding agents. It is free to self-host under Apache 2.0 and is described as working with many models, frameworks and harnesses.
Apache OpenNLP is a machine learning based toolkit for the processing of natural language text. It supports tasks such as sentence segmentation, tokenization, lemmatization, part-of-speech tagging, named entity extraction, chunking, parsing, language detection and coreference resolution. The project is developed by volunteers and welcomes contributions, from small documentation fixes to new components.
Petastorm is a library developed by Uber for deep learning model training and evaluation. It supports single-machine and distributed workflows with datasets in Apache Parquet format, is compatible with TensorFlow, PyTorch, and PySpark, and can be used via pure Python code.
Presenton is an open-source AI presentation generator and API, licensed under Apache 2.0. It creates presentations from a prompt, an uploaded document, or a PowerPoint design, works with providers such as OpenAI, Gemini, and Ollama, and exports fully editable PPTX or PDF files. It runs fully self-hosted in web through Docker or as a desktop app for macOS, Windows, and Linux.
QuoDB is a user-submitted database of movie and television quotes, described as the largest collection of time-based contextualized lines from film and series content contributed by users worldwide. The project's source code is licensed under Apache License v2.0, its documentation under CC BY 3.0, and its glyphicons under CC BY 3.0. The site includes a privacy policy, cookie policy, privacy settings, a cookie usage notice, and an option for users to request that their data not be shared with third parties.
