HelixNotes is a local markdown note-taking app built with Tauri, SvelteKit, and Rust. Notes are stored as standard Markdown files on the local filesystem. The Codeberg repository is a historical backup; the project has moved to GitLab and is no longer updated there.
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HelixNotes is a local markdown note-taking app that keeps notes as plain .md files in a folder on the user's disk. It offers a rich editor with a source mode, a tasks view collecting checklist items, and a graph built from wiki links. It is free and open source under AGPL-3.0, with no account, and runs on Linux, Windows, macOS, Android, iPhone and iPad.
Find and access economic policy, applied economics research data, with indexed survey data.
Hermes Agent is an open-source, self-hosted AI agent by Nous Research. It is available as a terminal app and as Hermes Desktop for macOS, Windows and Linux, with persistent memory and a messaging gateway for platforms such as Telegram, Discord, Slack, WhatsApp, Signal and email. It is free under the MIT license.
Heroic Games Launcher is a free and open source launcher for Epic Games, GOG and Amazon Prime Games. It runs on Linux, Windows, macOS and the Steam Deck, and is available as Flatpak, AppImage, Windows installer and macOS app. It includes a download queue, custom artwork, Wine and compatibility tool management, and a full-screen console mode.
Hevy helps discover apps, SaaS products, no-signup tools, clones, or software alternatives.
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.
HeyCV helps discover apps, SaaS products, no-signup tools, clones, or software alternatives.
Heylo is a platform where group leaders organize events, communications, payments and sponsorships in one place. It provides event creation, RSVPs, attendance and member onboarding, with dues, paid tickets and donations. The service is free to start and also has web and iOS and Android apps.
A collection of browser-based utilities for formatting, converting and generating data locally in the browser. It includes tools for JSON formatting, password generation, word counting, Base64 encoding, color conversion and regex testing, organized into packs such as JSON & Data and PDF Toolkit. The site states tools run locally without leaving the tab.
Hidamari is a video wallpaper application for Linux written in Python. It supports autostart after login, applying a static wallpaper with blur, pausing playback on maximized windows or fullscreen mode, volume control, hardware-accelerated decoding, GNOME Wayland, multi-monitor setups, streaming URLs and webpages as wallpaper. It is distributed as a Flatpak on Flathub.
Telegram link is a Telegram link for updates, app posts, files, or community notices.
HideIP is a free SSL-secured web proxy powered by the 4everproxy Network that hides a user's real IP address and browsing history. It generates a different URL for every site visited that is viewable only in the browser for one session. Servers in different locations let users appear to browse from another region, and it can unblock sites such as YouTube, Imgur, Twitch, Gmail and adult video sites.
HidHide is an input device firewall that blocks individual applications from accessing HID and XInput devices, allowing controller inputs to be re-routed and re-mapped. It is inspired by HidGuardian but written from scratch, and ships with a client UI, a command-line interface and driver access for developers.
High Assurance Rust is a book about developing secure and robust software. It presents a project-based approach to systems programming and low-level software security, teaching Rust by re-implementing a major dynamic collection from its standard library. It discusses using open-source software assurance tools, including rustc, libFuzzer, rr, qemu, differential fuzzing and deductive verification.
High Charts is a JavaScript charting library designed for use in web applications, dashboards, grids and frameworks including React. It offers products for core charting, stock data, maps, Gantt charts, grids and dashboards, and is used by a large number of global enterprises. The library provides built-in adaptive functionality and extensive customization options for interactive data visualizations.
Hilary Mason is co-founder and CEO of Hidden Door, where she works on projects that teach machines to tell stories. She builds projects at the edge of technical possibility, speaks and advises on developing AI products suited for real-world use, and maintains a writing archive covering data and machines dating back to 2006. She has scheduled speaking appearances at events including GDC 2026 and QCon AI New York.
Himalayas is a remote job board with over 100,000 listings from more than 25,000 companies. It offers free job matching and application tracking, plus AI tools for resumes, cover letters, mock interviews and career coaching. Paid tools start at $9/month.
HITRANonline is a web interface to the HITRAN database, a compilation of high-resolution spectroscopic parameters used by computer codes to predict and simulate atmospheric transmission and emission of light. The database is chiefly applied in atmospheric science and astrophysics. The site provides data access, documentation, cross-section definitions, tutorials and citation policy.
The Hong Kong Code-mixing Dictionary is a contemporary Cantonese-English dictionary website. It offers browsing of entries by new, most popular and random, and invites users to submit definitions to help learners understand real-world language usage. The site also mentions a downloadable app and an Instagram account.
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.
WorldWide Telescope is a suite of free and open source software and data sets that combine to create scientific visualizations and stories. Its ecosystem includes a Windows application, an interactive web app, and toolkits for Python and TypeScript/JavaScript.
Homebrew is a package manager that installs command-line tools and applications across macOS, Linux and WSL. It installs each package into its own keg inside the Cellar and symlinks files into a prefix path. Packages are formulae that build from upstream source or casks that install pre-built binaries, and a Brewfile can describe a desired state.
HomeDepot is a jailbreak tool for 32-bit iOS devices on firmware 9.1 through 9.3.4, and for A5(X) devices on 8.0 to 8.4.1. The jailbreak is not persistent, so it must be re-run after each reboot. The application is installed using Sideloadly and typically needs reinstalling every 7 days.