78 Free AI Tools to Chat with an AI Assistant

The best free AI tools to chat with an AI assistant, ranked by our checks. Last checked 18 Oct 2026.

Ranked AI tools you can use to chat with an AI assistant. Each listing shows verified free-tier details from the vendor pricing page; picks require at least one month of free access (free plan, monthly credits, or a trial of 30+ days).

78 free tools

Each with its last-checked date

Felo
AI search engine with multilingual answers and slides.
Free forever, Daily pro searches
Chatbots & LLMs
Chatbots & LLMs
Try
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Lumo
Proton's privacy-first AI assistant.
Free forever, Limited weekly chats
Chatbots & LLMs
Chatbots & LLMs
Try
Compare
TextCortex
AI writing assistant and knowledge base.
Free forever, Limited daily creations
AI Writing
AI Writing
Free accountTry
Compare
Saner.AI
AI assistant for notes, tasks and email for people with ADHD.
Free forever
AI Productivity
AI Productivity
Try
Compare
PDF.ai
Chat with PDF documents.
Free forever, Limited PDFs
AI Research
AI Research
Free accountTry
Compare
Logically (formerly Afforai)
AI research assistant and reference manager.
Free forever
AI Research
AI Research
Free accountTry
Compare
Chatling
No-code AI chatbot for websites.
Free forever
Sales & Support AI
Sales & Support AI
Try
Compare
Lobe Chat
Open-source AI chat framework with agents and plugins.
Free forever, Open source
Chatbots & LLMs
Chatbots & LLMs
Try
Compare
Sapling
AI writing assistant and AI detector.
Free forever
AI Writing
AI Writing
Try
Compare
CodeGPT
AI coding agents and assistants in VS Code and JetBrains.
Free forever, Bring your own key or limited interactions
AI Coding Assistants
AI Coding Assistants
Try
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Grafana Cloud
Observability platform with AI assistant.
Free forever
Dev Infrastructure & AI APIs
Dev Infrastructure & AI APIs
Try
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Venice
Private, uncensored AI chat and image generation.
Free forever, Limited daily prompts
Chatbots & LLMs
Chatbots & LLMs
Try
Compare
MailMaestro
AI email assistant for Outlook and Gmail.
Free forever, Limited monthly AI emails
AI Writing
AI Writing
Try
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Craft
Docs and notes with built-in AI assistant.
Free forever, Free plan with limited AI
AI Presentations
AI Presentations
Try
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Capacities
Object-based notes app with AI assistant.
Free forever, Free Basic plan
AI Productivity
AI Productivity
Try
Compare
Anara
AI research assistant for papers and notes.
Free forever, Limited uploads
AI Research
AI Research
Free accountTry
Compare
PostHog
Product analytics, session replay and AI assistant.
Free forever, Free monthly usage tier
Data & Analytics AI
Data & Analytics AI
Try
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Landbot
No-code chatbot builder with AI.
Free forever, Free Sandbox plan
Sales & Support AI
Sales & Support AI
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DocsBot
AI chatbots trained on your documentation.
Free forever, Limited bots and questions
Sales & Support AI
Sales & Support AI
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Dante AI
Custom AI chatbots for support.
Free forever
Sales & Support AI
Sales & Support AI
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Visual Studio Code
Free code editor with built-in Copilot AI chat and agent mode.
Free forever, Open-source editor
AI Coding Assistants
AI Coding Assistants
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Pulumi Copilot
Infrastructure as code with an AI assistant.
Free forever, Free individual
AI Coding Assistants
AI Coding Assistants
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Amazon Q Developer
AWS coding assistant with chat, security scans, and Java upgrades.
Free forever, Limited agentic requests per month
Closing Apr 2027
AI Coding Assistants
AI Coding Assistants
Free accountTry
Compare
ChatGPT
OpenAI assistant for chat, reasoning, image tools, and custom GPTs.
Free forever, GPT-6 chats with limits on uploads, images, voice and deep research
Chatbots & LLMs
Chatbots & LLMs
No signupTry
Compare
Grammarly
AI writing assistant for grammar, tone, clarity, and generative rewrites.
Free forever, Free plan at $0/month
AI Writing
AI Writing
Free accountTry
Compare
Otter.ai
Meeting transcription, summaries, and AI chat over recordings.
Free forever, Basic: free forever
AI Audio & Voice
AI Audio & Voice
Free accountTry
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JetBrains AI
AI assistant and Junie agent built into JetBrains IDEs.
Free forever, Unlimited local completion and limited cloud AI credits
AI Coding Assistants
AI Coding Assistants
Free accountTry
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Tabby
Self-hosted open-source AI coding assistant.
Free forever, Self-hosted open source, free community tier
AI Coding Assistants
AI Coding Assistants
Try
Compare
Merlin
AI assistant extension for chat, summaries and writing.
Free forever, Daily queries
Chatbots & LLMs
Chatbots & LLMs
Free accountTry
Compare
MaxAI
AI extension to chat, summarize and rewrite anywhere.
Free forever, Limited daily queries
Chatbots & LLMs
Chatbots & LLMs
Free accountTry
Compare
Liner
AI research assistant with cited sources.
Free forever, Limited daily searches
AI Research
AI Research
Try
Compare
ChatPDF
Chat with any PDF.
Free forever, Limited PDFs and questions per day
AI Research
AI Research
No signupTry
Compare
AskYourPDF
Chat with PDFs and research papers.
Free forever, Limited documents
AI Research
AI Research
Free accountTry
Compare
Paperguide
AI research assistant for finding and summarizing papers.
Free forever, 2,000 AI credits per month
AI Research
AI Research
Free accountTry
Compare
Claude
Anthropic assistant for analysis, coding, and long-document workflows.
Free forever, Chat on web, desktop and mobile with web search and file creation; usage limits apply
Chatbots & LLMs
Chatbots & LLMs
Free accountTry
Compare
Google Gemini
Google multimodal AI for search, writing, coding, and image help.
Free forever, Free $0/month with a Google Account
Chatbots & LLMs
Chatbots & LLMs
No signupTry
Compare
Perplexity
Answer engine with live web citations and follow-up research threads.
Free forever, Pro adds more advanced searches and models
Chatbots & LLMs
Chatbots & LLMs
Free accountTry
Compare
Microsoft Copilot
Free AI chat with web grounding, image tools, and Office integration upsell.
Free forever, Copilot is free with a signed-in Microsoft account
Chatbots & LLMs
Chatbots & LLMs
Free accountTry
Compare
Le Chat
Mistral chat with frontier and open models for coding and reasoning.
Free forever, Limited access to latest models, chat, search and Vibe for code
Chatbots & LLMs
Chatbots & LLMs
Free accountTry
Compare
Grok
xAI chat with real-time X data and image generation on supported tiers.
Free forever, Free to try on web and apps; SuperGrok for higher limits
Chatbots & LLMs
Chatbots & LLMs
Free accountTry
Compare
HyperWrite
Chrome assistant for autocomplete, email replies, and research.
Free forever, Free account: limited monthly credits on the basic AI
AI Writing
AI Writing
Free accountTry
Compare
Elicit
Research assistant finding papers and extracting answers from PDFs.
Free forever, Basic (free): limited Research Agent and reports, unlimited paper search
AI Research
AI Research
Free accountTry
Compare
Julius AI
Chat with spreadsheets and databases to analyze and visualize data.
Free forever, Free daily credits
Data & Analytics AI
Data & Analytics AI
Free accountTry
Compare
Pi
Supportive personal AI from Inflection.
Free forever, Sign up for free to chat
Chatbots & LLMs
Chatbots & LLMs
Free accountTry
Compare
Brave Leo
Private AI assistant built into the Brave browser.
Free forever, Free to use in Brave; no account required
Chatbots & LLMs
Chatbots & LLMs
No signupTry
Compare
Duck.ai
DuckDuckGo's private AI chat with no account needed.
Free forever, Anonymous chat with popular models
Chatbots & LLMs
Chatbots & LLMs
No signupTry
Compare
Monica
All-in-one AI assistant extension with multiple models.
Free forever, Daily queries
Chatbots & LLMs
Chatbots & LLMs
Free accountTry
Compare
ChatHub
Chat with multiple AI models side by side.
Free forever, Free to start; premium for more usage
Chatbots & LLMs
Chatbots & LLMs
Free accountTry
Compare
Ollama
Run open models locally or in the cloud.
Free forever, Run models locally; free cloud tier
Chatbots & LLMs
Chatbots & LLMs
Self-hostTry
Compare
Jan
Open-source desktop app that runs AI models locally.
Free forever, Open-source offline ChatGPT alternative
Chatbots & LLMs
Chatbots & LLMs
Self-hostTry
Compare
Msty
Desktop app for local and online AI models.
Free forever, Free plan for local and online models
Chatbots & LLMs
Chatbots & LLMs
Try
Compare
AnythingLLM
All-in-one desktop AI app with RAG and agents.
Free forever, Open-source desktop app
Chatbots & LLMs
Chatbots & LLMs
Try
Compare
Ai2 Playground
Try Ai2's open models like OLMo and Tülu.
Free forever, Free scientific and educational tool to chat with Ai2's open models
Chatbots & LLMs
Chatbots & LLMs
Try
Compare
Opera Aria
Free AI assistant in the Opera browser.
Free forever, Accountless AI in Opera browsers
Chatbots & LLMs
Chatbots & LLMs
Try
Compare
TypingMind
Better chat UI for AI models with your own API keys.
Free forever, Free web version with your own API key
Chatbots & LLMs
Chatbots & LLMs
Try
Compare
DeepL Write
AI writing assistant for clearer, more polished text.
Free forever, Improve text with limited usage
AI Writing
AI Writing
Try
Compare
Linguix
Grammar checker and AI writing assistant.
Free forever, Basic grammar checks
AI Writing
AI Writing
Try
Compare
Fathom
Free AI meeting assistant that records and summarizes calls. Now part of Superhuman.
Free forever, Unlimited recordings
AI Productivity
AI Productivity
Free accountTry
Compare
Mermaid Chart
Diagrams from text with an AI assistant.
Free forever
AI Productivity
AI Productivity
Try
Compare
Khanmigo
Khan Academy's AI tutor and teaching assistant.
Free forever, Free for teachers
AI Research
AI Research
Try
Compare
Grist
Relational spreadsheet with AI assistant.
Free forever
Data & Analytics AI
Data & Analytics AI
Try
Compare
iAsk
Free AI search engine and answer engine.
Free forever, Free AI answer engine
Chatbots & LLMs
Chatbots & LLMs
Try
Compare
Morphic
Open-source AI answer engine.
Free forever
Chatbots & LLMs
Chatbots & LLMs
Try
Compare
Vane (formerly Perplexica)
Open-source, self-hosted AI answering engine (the Perplexica repo now redirects to Vane).
Free forever, Open source
Chatbots & LLMs
Chatbots & LLMs
Try
Compare
LibreChat
Open-source ChatGPT-style interface for any model.
Free forever, Open-source, self-hosted
Chatbots & LLMs
Chatbots & LLMs
Try
Compare
Chatbox AI
Desktop and mobile AI client for many models.
Free forever
Chatbots & LLMs
Chatbots & LLMs
Try
Compare
Cherry Studio
Open-source desktop AI client for multiple LLM providers.
Free forever, Open source
Chatbots & LLMs
Chatbots & LLMs
Try
Compare
Big-AGI
Open-source multi-model AI chat suite.
Free forever, Open source
Chatbots & LLMs
Chatbots & LLMs
Try
Compare
NextChat
Open-source cross-platform ChatGPT/Gemini UI.
Free forever, Open source
Chatbots & LLMs
Chatbots & LLMs
Try
Compare
PocketPal AI
Free open-source app to run small LLMs on your phone.
Free forever, Open source
Chatbots & LLMs
Chatbots & LLMs
Try
Compare
SillyTavern
Open-source front end for chatting with LLMs and characters.
Free forever, Open source
Chatbots & LLMs
Chatbots & LLMs
Try
Compare
Eduaide
AI teaching assistant.
Free forever
AI Research
AI Research
Try
Compare
tawk.to
Free live chat with AI assist add-on.
Free forever, Free live chat forever
Sales & Support AI
Sales & Support AI
Free accountTry
Compare
Mailbutler
Email assistant with AI for Gmail, Outlook and Apple Mail.
Free forever, Forever Starter plan ($0) with Mailbutler watermark on sent emails; 14-day trial of all features first
AI Productivity
AI Productivity
Try
Compare
Typebot
Open-source chatbot builder with AI blocks.
Free forever
AI Agents & Automation
AI Agents & Automation
Try
Compare
Missive
Team inbox and chat with AI.
Free trial · 30 days, 30-day free trial
AI Productivity
AI Productivity
Try
Compare
Fellow
AI meeting assistant with agendas and notes.
Free plan, Limited AI recordings
AI Productivity
AI Productivity
Free accountTry
Compare
Ellie
AI email reply assistant.
Free plan, 10 draft replies/day, 1 email account, no auto-drafts; new accounts get a 7-day Business trial first
AI Writing
AI Writing
Try
Compare

Felo

Lumo

TextCortex

Saner.AI

PDF.ai

Logically (formerly Afforai)

Chatling

Lobe Chat

Sapling

CodeGPT

Grafana Cloud

Venice

MailMaestro

Craft

Capacities

Anara

PostHog

Landbot

DocsBot

Dante AI

Visual Studio Code

Pulumi Copilot

Amazon Q Developer

ChatGPT

Grammarly

Otter.ai

JetBrains AI

Tabby

Merlin

MaxAI

Liner

ChatPDF

AskYourPDF

Paperguide

Claude

Google Gemini

Perplexity

Microsoft Copilot

Le Chat

Grok

HyperWrite

Elicit

Julius AI

Pi

Brave Leo

Duck.ai

Monica

ChatHub

Ollama

Jan

Msty

AnythingLLM

Ai2 Playground

Opera Aria

TypingMind

DeepL Write

Linguix

Fathom

Mermaid Chart

Khanmigo

Grist

iAsk

Morphic

Vane (formerly Perplexica)

LibreChat

Chatbox AI

Cherry Studio

Big-AGI

NextChat

PocketPal AI

SillyTavern

Eduaide

tawk.to

Mailbutler

Typebot

Missive

Fellow

Ellie

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