Find open-source software you can trust.

Lively Wallpaper turns videos, GIFs, webpages, and even Unity or Godot applications into animated Windows wallpapers, with any wallpaper also usable as a multi-monitor screensaver. It supports drag and drop, command-line automation, and APIs for interactive wallpapers. Playback can pause during fullscreen applications, battery use, or remote desktop sessions to reduce unnecessary resource use.

Pot handles translation from selected text, a dedicated input window, clipboard monitoring, or a captured screen region, and can perform OCR before translating an image. It can query multiple translation, recognition, and speech services in parallel, supports plugins and external calls, and runs on Windows, macOS, and Linux.

Tolaria is a desktop app for organizing personal notes, company documentation, or agent memory on macOS, Windows, and Linux. Notes remain standard Markdown files with YAML frontmatter, and every vault is a Git repository with portable version history. It works without a Tolaria account, subscription, or cloud backend, so the knowledge base remains usable in other tools.

SimpleX Chat routes messages through disposable relay queues and uses pairwise connection identifiers instead of a global username or account identifier. Mobile, desktop, and terminal clients are available, and users can run their own messaging servers. The platform is still relatively early, so people relying on it for sensitive workflows should evaluate its current limitations and possible bugs.

Nuclear is an open-source music player for Windows, macOS, and Linux that searches for songs and artists, manages queues, and builds playlists without ads or tracking. Plugins can add streaming sources, metadata, and playlist integrations, while its optional MCP server lets compatible AI clients control playback.

Moonlight PC receives game or desktop streams from NVIDIA GameStream or Sunshine hosts across Windows, macOS, Linux, Steam Link, and several ARM devices. It supports hardware-accelerated H.264, HEVC, and AV1 decoding, HDR, 7.1 audio, keyboard shortcut forwarding, and multiple gamepads. AV1 specifically requires Sunshine and a supported GPU on the host.

Mailspring brings a unified inbox, snoozing, send later, rules, and templates into a desktop client for macOS, Windows, and Linux. Email credentials are not sent to the cloud. Link tracking, read receipts, mailbox analytics, and contact or company profiles are reserved for the paid Pro subscription.

DocuSeal lets teams turn PDFs into online forms with a visual field builder, assign multiple submitters, and collect completed documents and electronic signatures from phones or desktops. The self-hosted platform also supports automated email, signature verification, user management, local or cloud object storage, plus APIs and webhooks for integration. Its base application can be deployed quickly with Docker. Advanced capabilities such as white-labeling, SSO, SMS identity verification, bulk sending, and embedded builders or signing forms are listed as Pro features.

Seelen UI replaces major parts of the Windows 10 or 11 desktop, including the taskbar, dock, app launcher, window manager, notifications, and virtual desktops. Its CSS and JSON theming system and plugin widgets let users reshape both appearance and behavior, from minimal setups to denser power-user layouts. Microsoft Edge and the WebView runtime are required for the application to work correctly.

ConvertX runs as a self-hosted web application where users upload files, process several at once, and download converted results. Its container combines specialist converters for documents, images, e-books, audio, video, and structured data, covering more than a thousand format paths, with accounts, password protection, and scheduled cleanup. After deployment, the first administrator account should be created immediately, and an unconfigured instance should not be exposed publicly; non-local access expects HTTPS by default.

AB Download Manager organizes file transfers with download acceleration, queues, schedules, themes, and browser integration. It is useful for users who regularly manage batches of files or need downloads to run at specific times. Builds are listed for Android, Windows, Linux, and macOS through the project site, GitHub Releases, and platform package managers.

La Suite Docs is a collaborative editor for teams, public organizations, and open communities. It supports real-time presence, comments, granular access control, structured subpages, search, and document import or export. Organizations can use a public instance or self-host it through Docker Compose, Kubernetes, and community methods. Some advanced features, including PDF export, depend on GPL-licensed BlockNote XL packages and are omitted from the MIT-only build.

Browse repositories that publish installable assets for Android, Windows, macOS, or Linux, filter them by platform and release activity, and choose either the latest or an older release. On Android, Komi Store can link existing apps, track updates, and optionally install them silently through Shizuku, Sui, or Dhizuku. It does not verify the safety of third-party downloads.

Maxun is a self-hostable no-code platform for extracting, scraping, crawling, and searching the web. Users can record browser actions as reusable robots or describe desired fields in natural language for LLM-assisted extraction, then schedule runs and expose results through structured APIs, Markdown, screenshots, or spreadsheet integrations. It can be installed locally with or without Docker, and a separate SDK supports programmatic robot management.

ChatALL sends one prompt to multiple AI services concurrently, displays their responses together, and lets users continue with any provider independently. It is useful for comparing models, testing prompts, or selecting the strongest answer without opening many separate apps. Chat history and login data stay on the computer, although anonymous usage metrics that exclude message content are collected.

GitDiagram converts a public or private GitHub repository into a system-level architecture graph rather than a plain folder tree. Components link back to real files or directories, and users can export Mermaid source or a PNG image; replacing “hub” with “diagram” in a GitHub URL opens the hosted workflow directly. Private repositories require a fine-grained GitHub token supplied in the browser. Self-hosting additionally needs object storage, Redis coordination, and an AI provider.

Reactotron is a desktop debugger for React and React Native applications on macOS, Linux, and Windows. It can display application state, API requests and responses, logs, global errors, and quick performance benchmarks, while also subscribing to or replacing selected state. The integration is added as a development dependency and is not included in production builds.

FreshRSS brings RSS, Atom, and selected feedless websites into a self-hosted reader with per-user organization and custom tags. It can receive WebSub updates, expose APIs to mobile and desktop clients, and scrape basic website content; hosting requires a web server, PHP 8.1 or later, and a supported database.