Find the open-source solution that fits.

Mac Sai is a free, open-source macOS utility for cleaning system junk and browser data, finding duplicates, fully uninstalling applications, visualizing disk space, and scanning for malware. It offers one-click scans without subscriptions, ads, or telemetry and installs through Homebrew or a DMG. Release builds are signed with an Apple Developer ID and notarized, which is especially relevant for an app that requests broad file access.

This large library supplies reusable skills for product, engineering, marketing, legal, finance, careers, and many other professional tasks. Users can try skills in a browser or install them through CLI, MCP, and several agent platforms, with tools for search and chained document or slide workflows. Because the monorepo is extensive, most users will want only selected skills or bundles.

Use Hope Agent as a desktop assistant that remembers prior work and keeps long-running goals moving through resumable workflows and multiple agents. The same conversation can move between the native app, a browser, and messaging channels, or run continuously as a server on a NAS or cloud host. macOS is the primary supported environment; Linux and Windows remain less mature, and direct computer control is currently macOS-only.

Skales is a local-first AI agent app for assigning goals and letting the agent carry out work across files, browsers, calendars, email, code, and recurring workflows. Its desktop workspace supports parallel agents, teams, automation, and code or design tasks, while mobile apps can pair with a desktop or run independently. Users may connect local models or multiple cloud providers with their own credentials. Installation uses native desktop and mobile packages, so routine setup does not require Docker or a terminal.

This skill set measures repeatable clean and incremental Xcode builds, then examines Swift compile hotspots, schemes, build settings, script phases, target dependencies, and Swift Package Manager costs. The orchestrator produces an optimization plan before touching project files. Approved changes can then be applied by a fixer skill and checked with another benchmark run.

AI Tools Manager is a cross-platform desktop app for organizing accounts across services such as Augment, Windsurf, Cursor, OpenAI, and Claude Code, with quick account switching from one interface. It also combines subscription-expiry reminders, bookmark import and search, and email workflows for iCloud Hide My Email, Outlook, and GPTMail. Users can install a platform package from GitHub Releases, and macOS users also have a Homebrew cask.

ProxyPal turns accounts from Claude, ChatGPT, Gemini, GitHub Copilot, and compatible providers into a local OpenAI-style endpoint for coding clients such as Cursor, Claude Code, and Cline. Its desktop interface manages connections, monitors requests, tracks usage, and can configure detected assistants automatically. Builds are available for macOS, Windows, and Linux, although the unsigned macOS release may require a manual Gatekeeper workaround.

Pandora-Box is a cross-platform desktop client for Mihomo that helps users manage and convert proxy subscriptions. It supports multiple proxy protocols, automatic rule grouping, and TUN mode. Prebuilt releases are available, while source builds require Node.js 18 or later and Go 1.24 or later.

Hollama is a browser-based LLM chat client that can connect to multiple Ollama and OpenAI servers. It supports text, vision, and reasoning models, customizable system prompts, and advanced Ollama settings. Conversations are stored locally in the browser and can be imported or exported; desktop releases and Docker self-hosting are also available.

Manage a local music library by songs, artists, albums, favorites, and playlists, with search and smart filters for finding tracks quickly. During playback, the desktop app can show regular or synchronized lyrics, scrobble listening activity to Last.fm, and switch into a smaller mini-player, while light and dark themes adjust the interface. Users can also edit track metadata from the library. That editor currently supports MP3 files only because of a dependency limitation, so other audio formats cannot use the same metadata workflow.

Gisto is a cross-platform snippet manager with search, tagging, sharing, and a rich code editor. It can store snippets in GitHub Gists, GitLab Snippets, a self-hosted Snippet-Bin service, or a local browser database, so teams can choose between hosted accounts and local ownership. GitHub and GitLab connections require the relevant personal access token, while the private backend needs its own instance.

Wora is a cross-platform desktop player for organizing and listening to a local music collection. Users can create playlists, play FLAC, WAV, and common audio formats, start tracks quickly through a command menu, and view synchronized or unsynchronized lyrics. Ready-made releases are available, and the project can also be built for Linux, macOS, and Windows. Development is moving to a new Tauri-based version, so the current repository accepts only critical fixes and has limited room for normal feature contributions.

Google Calendar MCP Server lets an AI assistant query multiple accounts and calendars together, detect conflicts, check free or busy time, and create, update, delete, search, or respond to events, including recurring ones. It can also derive events from images, PDFs, or web links, and administrators may expose only selected tools. Setup requires a Google Cloud project with the Calendar API enabled, desktop OAuth credentials, and an initial browser authorization; test-mode tokens normally expire after seven days.

Shell360 provides a shared SSH and SFTP workflow across Windows, macOS, Linux, Android, and iOS for remote development, server administration, and file transfer. It supports passwords, public keys, certificates, SSH Agent, keyboard-interactive login, and multi-factor authentication, along with jump hosts and port forwarding. Configuration can be imported or exported between devices, while application data is kept in encrypted local storage.

Give a compatible AI agent repeatable workflows for solopreneur tasks such as SEO and GEO optimization, demand research across social platforms, domain comparison, and creating logos or banners. OPC Skills installs through the common skills CLI across Claude Code, Cursor, Codex, Gemini CLI, and other tools, so these workflows can stay inside an existing agent setup.

thClaws is an open-source agent harness that exposes a desktop GUI, CLI, headless mode, and web app from one Rust binary. It lets you switch among hosted or local model providers, attach MCP servers and skills, use persistent memory and knowledge bases, and coordinate scheduled jobs or agent teams without changing runtimes. Prebuilt releases cover macOS, Windows, and Linux. On headless Linux machines, the GUI build may require Wayland and WebKit libraries, while the CLI mode avoids those desktop dependencies.

TUUI is a desktop LLM chat and experimentation workspace built around the Model Context Protocol. It lets users configure hosted or self-managed model endpoints and work with MCP tools, prompts, resources, sampling, elicitation, registry discovery, and MCP bundles. The application is available as a direct download, but MCP use requires a model backend with tool calling and the appropriate Node.js, Python/uv, or Docker runtime for each configured server.

Steno records meetings, labels speakers, creates transcripts and summaries, and answers questions across one note or the full meeting library while keeping the default workflow on the user's machine. Personal notes can be folded into reports, and transcripts or summaries remain editable Markdown. macOS on Apple Silicon is the primary platform; the Windows build is still an unsigned alpha, and first-time setup downloads sizable transcription and summarization models.