HDRView is a research-oriented image viewer for examining and comparing high-dynamic-range images. It runs on macOS, Linux and Windows, with a slightly limited version in the browser, and offers live exposure, black-point and gamma tonemapping, false-color modes over 17 built-in colormaps, and clip warnings via zebra striping.
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Heights Platform is an AI online course creation and community software platform. It lets creators build and sell online courses, communities, coaching programs, and digital products, with unlimited videos and modules, lesson editor tools, drip feed, and payment plans via Stripe or PayPal. It also provides a website builder and landing pages.
Helium is a free, color-coded online student planner and academic calendar app available via web, iOS and Android. It lets users track classes, homework, grades and notes in a single interface, includes a built-in grade calculator, progress pace tracking, at-risk class alerts, and supports two-way sync with external calendar services.
Hellwal is a color palette generator comparable to Pywal, written in C. Given a wallpaper image it generates color templates, which are saved to ~/.cache/hellwal/. Templates can reference colors 0 to 15 in hex, rgb or single rgb channel formats and support HSL and RGB operations. It is available via AUR, Homebrew and Nixpkgs, or can be built with make.
herbstluftwm is a manual tiling window manager for the X window system. Configuration happens at runtime via the herbstclient tool, and settings, window rules, virtual desktops and keybindings can be updated live without restarting the window manager. Each virtual desktop, called a tag, consists of a tiling and a floating layer.
Heretic is a GitHub repository containing a tool for fully automatic censorship removal for language models. It supports optional functionality to generate plots of residual vectors and print details about residual geometry via specific command-line flags.
Gravity is a gravity simulation tool hosted at hermann.is/gravity. Users can build custom mass objects by left-clicking the interface and make orbiting mass objects via right-clicking. The tool offers configurable options including grid display, object path drawing, mass exaggeration, disk density adjustment, camera zoom, and calculation speed modification.
Hex Magic is the AI capability of the Hex analytics platform, built for modern data teams. It allows users to explore, analyze, and work with data through conversation within trusted, governed organizational contexts. The platform supports creating interactive dashboards and data applications via prompts, and emphasizes keeping user data private.
Hindsight is an agent memory system from Vectorize, intended to help agents learn over time rather than only recall conversation history. It is published under the MIT licence and can be run via Docker, working with multiple LLM providers.
The ICDC at the University of Hamburg provides historical hydrographic data from the German Maritime and Hydrographic Agency (BSH). The dataset contains about 7391 digitized temperature and salinity profiles from Nansen casts, covering 1869 to 1969. Data are original and not validated, available via FTP unrestricted or restricted to CEN/MPI networks or external users with an account. Licensed CC-BY-4.0.
Homarr is a dashboard for a server that places apps and services in one location. Boards are built with drag and drop, and icons come from included repositories. It connects services to show status, activity and controls, and includes authentication and permissions via credentials, OIDC or LDAP. The interface is available in 26 languages, and integrations are managed without YAML configurations.
Home Depot is an iOS 8.4.1 32-bit Mixtape Player for older iPhones, installed via Cydia Impactor. The Mixtape Player supports any iPhone, iPad or iPod touch on iOS 9.0-11.0, while the Cydia install option covers select older devices on iOS 8.4.1. Version 1.1 beta 1 adds themes and fixes the captcha download issue.
Homestyler is an online 3D home design tool that runs in the browser without installation. Users can upload a 2D floor plan or sketch for conversion into an editable 3D model, decorate with furniture models via drag-and-drop, and visualize designs through cloud rendering. Templates are available, and AI tools include image-to-image and text-to-image room design.
HoneyBot is a honeypot-style security bot for Discord. It uses a hidden lure channel and, when enabled via /setup, real-time scanning of accessible channels to detect and automatically act on spam, scam links, selfbots and compromised accounts. The bot is in beta and states that false positives and missed detections may occur.
Documentation for installing and configuring the Outline knowledge base across various environments. It notes that Outline is engineered as a horizontally scalable cloud platform requiring dev-ops experience to install and run in production. Community edition support is via GitHub discussions, while Enterprise and Business edition users contact their account manager.
HTPC Download Box is a software project that integrates Sonarr, Radarr, Jackett, NZBGet, Deluge, OpenVPN and Plex. It enables monitoring of TV shows and movies via Sonarr and Radarr, and automatically searches for releases using Usenet and torrent indexers for home theater PC use cases.
HWMonitor for Windows x86/x64 is a hardware monitoring program that reads PC system health sensors, including voltages, temperatures, powers, currents, fan speeds, utilizations and clock speeds. It handles CPU and GPU-level hardware monitoring, LPCIO chips with monitoring features, memory modules with thermal sensors, and SSD and hard disks via S.M.A.R.T.
A file-management application for large media collections that browses with tags instead of folders, similar to a desktop booru. It imports files and tags from a hard drive and popular websites, and tags can be shared anonymously through a public server. It supports various image, video and audio filetypes, with playback via an embedded mpv or native Qt player.
Hyperas is a wrapper that combines Keras model definition with Hyperopt hyperparameter optimization. Users define models as usual and wrap parameters in double curly brackets with a chosen distribution. It is installed via pip and runs optimization using algorithms such as TPE with a set number of evaluation runs.
HyperspaceAI describes itself as a peer-to-peer agent network with 19 public repositories on GitHub. Among the repositories is the AGI project, which describes thousands of autonomous AI agents that train models in collaboration and share experiments via P2P gossip. Another repository, hyperspace-node, is described as a decentralized P2P AI inference network with CLI, Tray App and Browser clients.
Hypertunity is a lightweight, high-level Python library for black-box hyperparameter optimisation. It supports Bayesian optimisation by wrapping GPyOpt, objective function evaluation through a scheduler that is also compatible with Slurm, and real-time visualisation of results in Tensorboard via the HParams plugin. A Trial wrapper class allows parallel optimisation without manual scheduling, optimiser updates and logging.
i2ocr is a free online OCR tool that extracts text from images and PDFs using AI-powered optical character recognition. It supports 128 languages and converts files into editable, searchable text. The service is accessible via its website.
Istanbul Metropolitan Municipality's open data platform enables users to search for datasets by keyword or topic, review them, and download data or query it via API to create projects. Published datasets are labeled under categories such as energy, economy, environment, mobility and governance.
IBM Asset Dataset refers to the deprecated IBM Developer Data Asset eXchange (DAX). Most of its datasets are now hosted on HuggingFace or Kaggle, while IBM Project Debater datasets are available via the IBM Research Haifa site.