Qalculate! is a multi-purpose cross-platform desktop calculator. It provides everyday tools such as currency conversion and percent calculation, along with advanced capabilities including symbolic calculations, arbitrary precision, unit conversions, and plotting. The software includes over 400 functions and 400 units, supports various number bases, and offers a user-friendly interface with Gtk, Qt, and CLI options. It is free software licensed under the GNU Public License v2 or later.
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Qtractor is an Audio/MIDI multi-track sequencer application written in C++ with the Qt framework. The target platform is Linux, using JACK for audio and ALSA for MIDI. It is free, open-source software distributed under the GNU General Public License version 2 or later.
Qwen3-Coder is the code version of the Qwen3 large language model series from the Qwen team. It is offered in multiple sizes, including Qwen3-Coder-480B-A35B-Instruct, Qwen3-Coder-30B-A3B-Instruct and Qwen3-Coder-Next, and the repository supports platforms such as Qwen Code, CLINE and Claude Code.
RDX for Reddit is a mobile web viewer for Reddit described as inspired by the closed Apollo app. It offers a mobile-friendly reader with multiple dark and light themes and browsing without ads, along with settings and the ability to subscribe to subreddits. Apps for iPhone and Android are offered for download.
Research Square is a multidisciplinary preprint platform where authors can post full-text preprints with DOIs before journal publication. Preprints are free to post, screened for author information and declarations, and indexed in several scholarly services. Readers can browse preprints, comment on emerging research, and follow manuscripts under journal review.
RimSort is a free and open source, multi-platform mod manager for the video game RimWorld, supporting Windows, macOS, and Linux. It automatically sorts mod lists using rules derived from mod data, community-submitted rules, and Steam data, and provides a live view of warnings and errors such as missing dependencies and load order violations. It is distributed under a GPL-3.0 license.
RomM is a free, self-hosted application for scanning, organizing and playing a ROM collection. It pulls metadata from multiple providers, syncs saves across devices and supports many platforms. EmulatorJS, Ruffle, js-dos, PICO-8 and EasyRPG are built in for browser play.
Open-source SDK for running LLMs and multimodal models on-device across iOS, Android, and cross-platform apps.
Scanner is an all-in-one scanner app built for the Universal Windows Platform. It works with WIA-compatible scanners, saves multiple pages as a PDF or separate images, and includes a built-in editor for cropping, rotating, drawing and highlighting, plus PDF page reordering.
Search All is a multi-search platform that combines multiple AI search engines and chatbots, private web search engines, image and video search, shopping sites and social media networks in one tab. It offers browser extensions for Chrome, Edge and Firefox and an Android app, plus an AI image and video generator.
SiteGPT is a platform that builds custom AI customer support chatbots trained on a website's content. The chatbots answer visitor questions, support over 95 languages, and can be used for lead generation. The service integrates with various tools and provides features such as a knowledge base, multichannel support, and an onboarding process.
SMovies is a free online platform for streaming and downloading movies in HD quality. It does not require user registration, displays no advertisements, and aggregates content from multiple sources for user access.
Snapp is a self-hosted URL shortening platform with a built-in dashboard, multi-domain workspaces, team permissions, analytics and a REST API. Features include short URLs with optional custom shortcode, notes, tags, teams, expiration, hit limits and UTM templates.
Soopervisor is an open source tool that exports Ploomber data pipelines to multiple production platforms, including Kubernetes (Argo), Airflow, AWS Batch, SLURM, and Kubeflow. It is hosted as a public repository on GitHub under the ploomber organization.
Stability Matrix is a multi-platform package manager designed for Stable Diffusion. It offers one-click installation and updates for Stable Diffusion Web UI packages, a built-in inference interface for the system, and a launcher with a syntax-highlighted terminal emulator and routed GUI input prompts.
Multi-Platform Live Stream Automatic Recording Tool | 多平台直播流自动录制客户端 · 基于FFmpeg · 支持监控/定时/转码
A multi platform Twitch.tv browser for Streamlink
StreamWatch is a free streaming platform that provides access to movies and television series without advertisements. It supports multiple streaming servers, including Vidsrc and Pstream, and is positioned as an alternative to other streaming services such as Yflix and FlixHQ.
Strumyk is a free online sports streaming platform that provides live streams of sports including football, basketball, MMA and KSW. It offers multiple language selection options, and lists its privacy policy, cookie policy and terms of use on the site.
StudyCraft is a multi-platform desktop study application. It automatically generates flashcard decks and tests from user-provided study materials, including PDFs, Markdown files, websites and GitHub repositories. The tool also supports study session progress tracking and integration with multiple large language model providers.
Sub Cleaner is a free, open-source tool for unsubscribing from multiple subreddits at once. Users connect a Reddit account through OAuth2, select subreddits from their subscriptions, and unsubscribe from the selected ones in one action. The site states that no credentials or personal information are stored on its servers.
A tool for exploring subreddit similarity. Users enter a single subreddit to calculate the most related subreddits, or add and subtract multiple subreddits to find subreddits most related to their combination.
Super Mario and the Rainbow Stars is an SMBX2 fangame that aims to bring traits of the Paper Mario and Mario & Luigi series into a 2D platformer. It includes six chapters, partners, and unique worlds, and lists features such as multiplayer, cutscenes, a 3D world map, powerups, a 3 hp life system, partners, and badges. A demo (v1.1) is offered for download.
Supernova is a design system and knowledge management platform that connects design and code data, including tokens, components and documentation, into one source. It supports multi-brand design systems, page history, realtime collaboration and code automations. Filtered MCP servers give AI agents team-specific knowledge, and MCP analytics show usage by users.