Open Source AI Personal Assistants using CSS
A curated collection of the best open source aI-powered assistants for personal productivity and task automation. using CSS.
Keyboard-first email client with AI, chat, and tasks
Stars
Stars growing over the last 30 days4,771Last commit
8 hours agoLicense
AGPL-3.0
An AI-powered email client that combines inbox management, chat, tasks, and AI agents in one shared workspace, built for keyboard-driven workflows.
Open Source Alternative to:
Private AI chat with zero-access encryption
Stars
5,642Last commit
10 hours agoLicense
GPL-3.0
AI chat assistant from Proton that stores conversations with zero-access encryption, never logs chats, and never uses your data to train models.
Open Source Alternative to:
An AI assistant that acts, not just answers
Stars
392,917Last commit
6 hours agoLicense
MIT
A personal AI assistant that connects to your existing chat apps and handles real tasks like email, calendar, and flight check-ins on your behalf.
Open Source Alternative to:
Desktop AI agent with persistent memory across platforms
Stars
Stars growing over the last 30 days255,365Last commit
6 hours agoLicense
MIT
Cross-platform desktop agent from Nous Research that connects to Telegram, Discord, Slack, WhatsApp, and more, with persistent memory, scheduling, and isolated sandboxing.
Open Source Alternative to:
Self-hosted AI agent for chat, automation, and workflows
Stars
49,205Last commit
6 hours agoLicense
MIT
Lightweight, self-hosted AI agent that runs in a web UI, terminal, or chat app, handling long-running workflows with controlled token budgets.
Open Source Alternative to:
Run AI models locally or connect to cloud, privately
Stars
45,019Last commit
6 hours agoLicense
Apache-2.0
Jan runs open-source AI models on your own hardware or connects to cloud providers like OpenAI, Anthropic, and Google, keeping your conversations off third-party servers.
Open Source Alternative to:
Self-hosted AI agent with 70+ providers and 30+ channels
Stars
33,010Last commit
7 hours agoLicense
Apache-2.0
A single Rust binary that runs a personal AI agent on your own hardware, connecting to 70+ LLM providers and 30+ messaging channels with built-in sandboxing and cryptographic tool receipts.
Open Source Alternative to:
AI second brain for research, automation, and personal agents
Stars
37,754Last commit
3 months agoLicense
AGPL-3.0
Self-hostable AI assistant that connects to your docs and the web, lets you build agents, schedule automations, and run research with verifiable citations.
Open Source Alternative to:
24/7 screen and audio recorder with AI memory search
Stars
21,998Last commit
10 hours agoLicense
Other
Records your screen and microphone locally, transcribes meetings automatically, and exposes selected work context to compatible AI assistants through its MCP server and local API.
Open Source Alternative to:
Desktop multi-agent workforce for automating real tasks
Stars
15,618Last commit
1 day agoLicense
Apache-2.0
Self-hostable desktop app that runs a coordinated team of AI agents to browse the web, manage files, execute terminal commands, and complete complex workflows.
Open Source Alternative to:
AI agent runtime with encrypted enclaves for your secrets
Stars
12,668Last commit
16 hours agoLicense
Apache-2.0
Runs AI agents inside Trusted Execution Environments on NEAR AI Cloud, keeping credentials encrypted and invisible to the model at all times.
Open Source Alternative to:
Self-hosted enterprise agent platform with real permissions
Stars
Stars growing quickly over the last 30 days6,695Last commit
14 hours agoLicense
MIT
Deploy AI agents inside your own infrastructure with document-grounded answers, computer use, and support for any AG-UI-compatible agent framework.
Open Source Alternative to:
A team of AI agents in a chat app, on your own machine
Stars
Stars growing quickly over the last 30 days5,231Last commit
6 hours agoLicense
Apache-2.0
Run a team of AI agents locally on your own API keys and subscriptions, with scheduled tasks, computer use, and Gmail, GitHub and Slack integrations.
Open Source Alternative to:
Self-hosted AI agents that do real work on your machine
Stars
Stars growing quickly over the last 30 days4,828Last commit
6 hours agoLicense
Apache-2.0
Run persistent AI bots that sign into your tools, complete tasks autonomously, and ask for approval when needed. Your keys, your model, your infrastructure.
Open Source Alternative to:
Smart desktop AI assistant with powerful local knowledge features
Stars
5,372Last commit
1 month agoLicense
Unknown
Cross-platform desktop AI assistant supporting multiple providers, local knowledge base, and custom prompts. Integrates MCP protocol for enhanced AI tool capabilities.
Open Source Alternative to:
AI-powered automation that lives in your Slack workspace
Stars
1,098Last commit
6 months agoLicense
Apache-2.0
Connect all your apps through Pearl, an AI assistant that automates workflows directly in Slack. No coding required - save 10+ hours weekly with intelligent task automation.
Open Source Alternative to:
Dictate faster and control your Mac with voice
Stars
656Last commit
28 days agoLicense
MIT
Free, open-source macOS voice assistant that transcribes speech, applies AI transformations, and controls apps hands-free. No subscription, no training required.
Open Source Alternative to:
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