Best Free AI Agents Without Sign-Up, Ranked After Testing 11
Our flagship ranking — Duck.ai, Andi, Raphael AI and DeepAI earned Tier 1.
No-Signup AI Chatbots, Tested and Ranked (2026)
Every chatbot below was opened in a clean browser and used for a real conversation with no account — no email, no Google login, nothing. The table is the short version; the reviews are the receipts.
Wsup has a separate status page. The original wsup.ai closed in June 2026. The site at wsupai.app was still online on October 28, 2026, and no official shutdown notice for it was found. Read the Wsup status as of Oct 2026.
One wording note: people search for this two ways — "AI chatbot no sign up" and "AI chatbot without login" — and on this page they mean exactly the same thing. If you want an AI chatbot without login of any kind (no account, no email link, no "sign in with Google"), every pick below passed that test by hand.
The comparison table
| Chatbot | Tier | Best for | Free limits |
|---|---|---|---|
| Duck.ai | Tier 1 | Private everyday chat, switchable models | Daily caps; history stays on your device |
| LMArena | Tier 2 | Comparing GPT vs Claude vs Gemini free | Battle format; account optional for history |
| Venice.ai | Tier 2 | Private long-form conversations | ~10 text prompts/day; stateless by default |
| Perchance | Tier 2 | Unlimited casual chat | No account system at all; older models |
| Brave Leo | Tier 2 | AI inside the Brave browser | Requires Brave; premium models need subscription |
| Andi | Tier 1 | Quick researched answers | Search-focused, not a general chatbot |
| ChatGot | Tier 2 | Multi-model chat, PDF Q&A, AI images | Unpublished free caps; models rotate |
| Nokeep | Tier 2 | Anonymous chat, images and video | 25 messages, 2 images, 1 clip/day; model undisclosed |
| Lumo | Tier 2 | Private AI chat from Proton | Guest limits unpublished; no saved history as guest |
| NoTrack | Tier 2 | Unlimited anonymous chat | No message cap; peak queues; side caps |
| Giotto AI | Tier 2 | Capable European assistant, guest chat | Free quota unpublished; homepage chat box is a dead end |
| Liquid AI LFM3 | Tier 2 | Quick chat with a small fast model | Small 1.7B model; only TEXT variant tested |
Tier 1 passed our October 2026 hands-on re-test. Tier 2 has no account wall but comes with usage limits or pending re-verification.
Tested in depth
Is There a Free AI Personal Assistant? We Asked Without an Account
ChatGPT's free tier answered two messages with zero login. Tested anonymously.
Is There a Completely Free AI Agent? The Four Meanings of "Free"
What "free" actually promises — no sign-up, no API key, free tier, or free trial?
How we verify "no sign up"
For each chatbot we open it in a clean browser profile with no logged-in sessions and hold a real conversation — not a single hello, a multi-turn exchange — confirming no account prompt blocks the core feature. We re-check regularly because providers change signup policies without announcement.
FAQ
Which no-signup AI chatbot is the best?
For private everyday chat with switchable models: Duck.ai (Tier 1). For comparing GPT vs Claude vs Gemini free: LMArena. For unlimited casual use with no account system at all: Perchance. For quick researched answers: Andi (Tier 1).
Do any of these chatbots require an account?
No. All twelve were opened in a clean browser and used for real conversations with no account. LMArena and Venice.ai offer optional accounts for history, but the core chat works anonymously.
Is my chat history saved on these tools?
It varies. Duck.ai keeps history on your device only. Venice.ai runs stateless by default. Perchance has no memory between sessions. If you need persistent history across devices, you'll want an account somewhere — that's the trade.
What are the free limits?
Duck.ai has daily usage caps. Venice.ai allows around 10 free text prompts a day. Perchance is unlimited but runs older models. Brave Leo requires the Brave browser. Nokeep allows 25 messages a day, Lumo’s guest limits are unpublished, and NoTrack has no message cap but queues at peak times. Check each review's Limits row for specifics. Giotto AI's free quota is unpublished, and its homepage chat box is a dead end — use the cloud guest page. Liquid AI LFM3's limits are unpublished, and only its 1.7B TEXT model was tested.
Can I really use an AI chatbot without login?
Yes. Every chatbot on this page runs in a clean browser with no login at all — no account, no email sign-in link, no Google button standing between you and the chat box. A few (LMArena, Venice.ai) offer an optional account if you want saved history, but logging in is never required to chat, and we re-test that regularly: when a tool adds a login wall, it leaves this list.