Sites and apps similar to ExpressAI include Lumo by Proton, which is open source with a free version. Other options are Perplexity, Duck.ai, Jan.ai and Ensu. There's no shortage of AI Chatbots like ExpressAI, with more than 25 alternatives for Mac, Windows, Linux, Android and iPhone.
Privacy-first AI assistant utilizing zero-access encryption and open-source code, ensuring no data logging, profiling, or training on chats, providing user-controlled, encrypted conversations, with compliance under GDPR and no sharing with third parties.
Switzerland
AI-powered engine offers precise answers through a conversational interface utilizing large language models. Features include predictive text, personalized profiles, and Pro Search for advanced AI capabilities. Ideal for summarizing content, exploring topics, and enhancing productivity.
United States
Duck.ai is a feature that allows you to have private conversations with 3rd-party AI chat models, anonymized by DuckDuckGo.
United States
Open-source offline AI platform supports local LLMs including Llama, Gemma, Qwen, GPT-oss, integrates cloud services like OpenAI and Anthropic, enables custom assistant creation, offers OpenAI-compatible API on localhost, operates across diverse hardware and ensures privacy.
Singapore
Private offline AI chat using local language models on mobile and desktop, no accounts or tracking, open source Rust core, privacy-first design, cross-platform availability, ideal for confidential conversations, with end-to-end encrypted sync coming soon.
United States
Open-source privacy-focused chatbot platform allowing unlimited document uploads, multi-user and single-user modes, AI-powered chat with documents, vector database and LLM compatibility, customizable interface, message history, secure desktop deployment, and full user controls.
United States
Alpaca is an Ollama client where you can manage and chat with multiple models, Alpaca provides an easy and begginer friendly way of interacting with local AI.
Costa Rica
Confidential AI chat assistant delivering writing, summarization, voice transcription, email handling, and document search tools, all hosted exclusively in Switzerland with open source models, data sovereignty, and compliance with GDPR and FADP standards.
Switzerland
As a fully open language model, Apertus allows researchers, professionals and enthusiasts to build upon the model and adapt it to their specific needs, as well as to inspect any part of the training process.
Switzerland
Poe is a web-based AI platform that hosts multiple assistant bots—including Claude and various GPT and image/audio models—to provide conversational Q&A, image and audio generation, and automated AI workflows.
United States
