16 free resources on this topic. Everything here is free and hand-picked. You can also search within this topic.
Open-source personal AI assistant that runs locally on your own devices and connects to WhatsApp, Telegram, and Discord. Features persistent memory, proactive notifications, and community-built skill extensions. Formerly known as ClawdBot. Free and open source.
A full AI assistant — writing, images, web search, memory, file uploads — where every conversation is end-to-end encrypted on your device, so the company says it cannot read your chats, train on them, hand them to partners, or produce anything but scrambled text in response to a subpoena. Built by Moxie Marlinspike, the cryptographer who created Signal. Free to start with no credit card; the encryption and private inference designs are written up publicly and the code is open source so the claims can be checked.
Why I recommend it: This is the one to reach for when you are about to type something into an AI that you would not want read back to you — money trouble, health, a manager, a visa problem. Two honest things. It is free to start, which is not the same as free forever, so read the plan page before you rely on it. And encryption protects the message, not your judgment: anything you paste in that belongs to an employer or a client is still their information, whoever can or cannot read it.
A free way to use several well-known chat models — including ones from OpenAI and Anthropic alongside open models like Llama and Mistral — without an account and without the model provider seeing who you are. DuckDuckGo strips your identity and passes the request on, and says the providers agree not to train on what goes through it. Supports image and PDF uploads, image generation and voice chat, with daily limits on the free tier.
Why I recommend it: The most frictionless privacy win on this list: no sign-up, nothing to cancel, and it takes about four seconds to start. Good for the everyday questions you do not want attached to a profile. Be clear about what it does and does not do — DuckDuckGo hides who you are from the model provider, but the words you type still travel to that provider's servers, so it is not the same as encryption or running a model on your own machine. There is a paid upgrade for higher limits.
AI assistant and agent powered by GLM-5.3-Flash. Can build websites, write code, handle long-horizon tasks and answer questions.
From the site: Meet Z.ai, the AI assistant powered by GLM-5.3-Flash. Build websites, write code, handle long-horizon tasks, and get instant answers. Fast, smart, and reliable.
Why I recommend it: Check current usage limits on site; Z.ai typically offers free access with model-rate limits and may offer paid tiers.
DeepSeek's chat assistant. Free tier gives unlimited messages and file uploads on a daily-reset quota; no payment required. One of the most significant free AI releases of the past two years.
Why I recommend it: Worth trying on reasoning-heavy work and long documents. Note it is a Chinese service — read its data terms before pasting anything confidential.
Mistral AI's assistant: web search with citations, document and image analysis, image generation and task agents. Free tier is generous; a paid tier with higher service guarantees is planned but not needed to use it.
Why I recommend it: Good second opinion when you want sourced answers with citations you can click through and check.
Google's image generation and editing model, built into the Gemini app. Free tier has daily usage limits; paid Gemini plans raise them.
From the site: Avec Nano Banana 2, le générateur d
Why I recommend it: Best of the free image tools for editing a picture you already have rather than starting from nothing — useful for slide graphics and profile images.
Anthropic's AI assistant. Strong at long writing, reading documents you paste in, analysis and coding help. Free tier with daily limits; paid plans lift them.
From the site: Claude is Anthropic
Why I recommend it: The one I reach for when the task is writing or thinking through a document. Check anything factual yourself — it can be confidently wrong.
Google's AI assistant, wired into Gmail, Docs and the rest of Workspace, so it can work on files you already have. Free tier; paid plans add the larger models.
Why I recommend it: Worth it mainly if your work already lives in Google Docs and Gmail — that integration is the real advantage.
Meta's assistant, built into Instagram, WhatsApp and Facebook, plus its own site. Free.
Why I recommend it: Handy for drafting captions and replies inside the apps you are already posting from. Weaker than the others on long or careful work.
xAI's assistant, built into X, with access to current posts and news as they happen. Limited free use with an X account; higher limits on paid tiers.
From the site: Grok is an AI assistant built by SpaceXAI. Chat, create images, write code, and get real-time answers from the web and X.
Why I recommend it: Useful when you need what is being said right now rather than a considered answer. Its live sources are public posts, so treat them as claims, not facts.
Microsoft's AI assistant, built into Windows, Word, Excel and Outlook. Free to use in the browser and on Windows; the Office integration needs a paid plan.
From the site: Microsoft Copilot is your companion to inform, entertain and inspire. Get advice, feedback and straightforward answers. Try Copilot now.
Why I recommend it: If your employer runs on Microsoft 365, this is the assistant you will actually be allowed to use at work.
Moonshot AI's free Kimi assistant, strong on long documents, research and coding tasks in the browser.
Why I recommend it: Good free option when you need to feed in a long report and get straight answers.
Alibaba's Qwen family of open AI models with a free chat assistant for writing, coding, image and document work in the browser.
Why I recommend it: A strong free alternative when you want a capable assistant without a subscription.
MiniMax's free-to-try AI platform covering text, speech, music and video generation models.
Why I recommend it: Worth testing when you need voice or video output and do not want to pay yet.
A free AI search assistant that answers questions with cited sources and can run research tasks, useful for company research before an interview or scanning an industry quickly.
Why I recommend it: Good for the twenty minutes of company research you should do before every interview.
