Ogmo Editor 3 is a free, open source, project oriented level editor made for indie game developers by indie game developers. It offers a project based workflow, layer types for tiles, decals, entities and grids, and saves levels to JSON files. It is free to use for personal and commercial projects and is open sourced under the MIT license.
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OH marijuana docs helps search public records, court data, genealogy sources, property information, or archived records.
Oh My Git! is an open source game about learning Git. It visualizes the internal structures of Git repositories in realtime and includes a custom-designed playing card interface, plus an integrated terminal where players can execute arbitrary Git commands. It focuses on interacting with remotes and workflows for multiple repositories. Binaries for Linux, macOS and Windows are downloadable from itch.io.
Old School Style is a system utility for Windows, hardware checks, cleanup, process control, or desktop customization.
OldSchoolSitesCatalogue is a curated directory or link collection for discovering useful websites, tools, and resources.
A GitHub repository of userstyles for a variety of websites, designed for Stylus. Some of the styles include userCSS. The repository lists styles for sites such as ChatGPT, Claude, GitHub, Google, and Trakt.
Ombi is a video tool for encoding, conversion, repair, playback, editing, or processing workflows.
Ombre is an open-source AI infrastructure layer. It runs eight specialized agents on every request to handle security, caching, memory, hallucination detection, and tamper-proof audit trails. It is installed with one line of code, and user data never leaves the user's server.
This Python application is an OSINT (Open Source Intelligence) tool called "Ominis OSINT - Web Hunter." It performs online information gathering by querying Google for search results related to a user-inputted query. The tool extracts relevant information such as titles, URLs, and potential mentions of the query in the results.
Omni is a browser extension for Chrome and Firefox that provides a command interface for managing tabs, bookmarks and browsing history. It offers over 50 actions and special commands for filtering results, plus shortcuts for actions such as muting, pinning and bookmarking. The project lists integrations with Notion, Figma, Docs and Asana. It is free and requires no sign-in.
Open source video editor focused on quick clipping, trimming, and browser-based media edits.
OmniRoute by Cheaper Inference is an open-source AI router that routes requests across providers through one OpenAI-compatible endpoint, with automatic fallback. It accepts OpenAI, Claude, Gemini and Responses API requests at /v1 and ships as a self-hosted gateway with a local dashboard. The catalog covers chat, media, search, local runtimes and cloud agents.
OneBlog helps plan, write, optimize, or analyze content for SEO and search visibility.
An open-source cross-platform performance library for deep learning applications.
OneFlow is a performance-centered and open-source deep learning framework.
OnHockey.TV lists schedules of live ice hockey streams across leagues such as NHL, KHL, Liiga, SHL, DEL, Extraliga, World Championship and Olympic Games. The site states it does not host or upload videos; streams are embedded from other sources.
Onion Browser is a free, open-source web browser for iOS that connects to the Tor network. It encrypts traffic through Tor, which the project describes as providing a high standard of privacy and security. Tabs close when done, and security settings can be adjusted per website. No personal data is saved or used for targeted ads.
onionsearch is a Python script that scrapes URLs on different .onion search engines. It is distributed on PyPI as version 1.3, released on October 22, 2021, under the GNU General Public License v3. The package page states the author has not provided a project description.
OnionShare is an open-source tool for securely and anonymously sharing files, hosting websites, and chatting over the Tor network. It is available as desktop apps for Windows, macOS and Linux, and as mobile apps for Android and iOS. It is also preinstalled in operating systems such as Qubes OS, Tails and ParrotOS.
RedHunt Labs search tool for finding public code from online IDEs, pastes, and snippet sites.
ONLYOFFICE is an open-source office suite providing document editing for text, spreadsheets, presentations, PDFs and fillable forms. It offers desktop and mobile apps, online editors, AI assistants for content generation and analysis, and connectors for integrating the editors into other platforms. It can run on a user's server or in the cloud.
OnlySwitch is a macOS menu-bar app that gathers everyday system controls into one customizable menu bar, including hiding desktop icons, changing appearance, keeping the Mac awake and managing the notch. Switches and Shortcuts can be added, removed, reordered, assigned keyboard shortcuts, or placed on the desktop as widgets.
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.
Onyx is an enterprise platform that connects to organizational knowledge sources to provide humans and AI agents with accurate, fast, and token-efficient context. It supports more than 50 connectors, works with any AI model, offers white-glove support, and is used by over 1,000 teams handling 1 million or more weekly queries.