Artificial intelligence has become an indispensable part of our daily lives. The explosion of free AI apps offers more options than ever, but it can be overwhelming to identify the most valuable ones.
Whether you're a student, professional, or tech enthusiast, this comprehensive guide highlights the best free AI tools of 2025.
Table of Contents
- AI Assistants for Everyday Productivity
- ChatGPT
- Claude
- Learning and Building with AI
- Google AI Studio
- GitHub Copilot
- Writing and Editing
- Quillbot
- Grammarly
- Copy.ai
- Image Generation
- Stable Diffusion
- Leonardo AI
- Video Creation
- DeepBrain
- Runway
- Web and Social Media
- Wix
- Publer
- Project Management
- Zapier
- Fathom
- Height
- Job Hunting
- Teal
- InterviewAce
AI Assistants for Everyday Productivity
Best for: Students, professionals, and anyone looking to streamline tasks
AI assistants streamline daily routines—whether you're managing projects, conducting research, or staying organized. These free tools help you accomplish more with less effort.
1. ChatGPT
Unsurprisingly, this household name remains the leading AI assistant. OpenAI’s ChatGPT became the fastest-growing consumer software in history, and for good reason. The large language model powering the chatbot is as powerful as it is versatile, and controlling it is as easy as talking to a friend.
ChatGPT is the AI app that everyone is using—an invaluable helper in everything from getting quick answers and summarizing documents to writing and data analysis.
While not flawless, its sheer number of use cases and growing list of integrations make it the most popular AI solution available today. The key to taking full advantage of its applications is knowing how to effectively prompt ChatGPT.
2. Claude
Anthropic’s Claude is a good alternative to ChatGPT, with superior contextual reasoning and a more natural conversation style. Some users also like that it sounds more conversational, making interactions feel more natural.
That said, Claude less versatile than ChatGPT, with some features locked behind a paywall. Still, it’s a strong choice—especially for breaking down complex topics.
Learning and Building with AI
Best for: Aspiring data scientists, machine learning enthusiasts, and tech learners
If you want to understand how AI works or build your own models, these free platforms give you everything you need to start learning and experimenting right away. Getting into the tech industry is a smart career move, as 90% of all businesses will see negative consequences of an IT skills gap by 2026.
3. Google AI Studio
Google AI Studio allows you to customize Google’s chatbot Gemini, making it one of the best free AI tools. You can chat with it like other AI bots, but what sets it apart is the ability to fine-tune the language model to your specific needs.
Using Google AI Studio can be intimidating at first if you don’t have experience in AI model tuning. But once you get the hang of it, it’s a fun way to understand how LLMs work and tweak and tailor the chatbot to your needs.
4. GitHub Copilot
What if you aren’t interested in building AI models but want to develop your chops as a programmer? Then GitHub Copilot is the best free AI app for you. This basic but helpful AI coding assistant suggests corrections or additional code snippets, streamlining the programming process. Its free version doesn’t have a lot of frills, but it still makes an intimidating field easier to take on.
Writing and Editing
Best for: Students, professionals, marketers, and content creators
Whether you're writing coursework or crafting copy for work, these AI writing tools can speed up the process and boost your writing quality.
5. Quillbot
Unlike other AI writing tools, Quillbot doesn’t write for you. Instead, it assists you in the creation process, making it the best free AI content generator for boosting creativity.
Acting as a personal AI editor, Quillbot offers paraphrasing, grammar checking, plagiarism detection, and citation generation. Its browser and mobile support make it highly accessible.
6. Grammarly
Grammarly is the go-to spelling and grammar checking, but its AI features make it much more than that. It’s one of the best free AI apps for writers.
Grammarly supports multiple English dialects, detects tone of voice, and integrates into nearly any word processor. Although its suggestions aren’t always perfect, it’s more detailed and reliable than Microsoft and Google Docs’ built-in solutions.
7. Copy.ai
Copy.ai is one of the best free AI tools for writing. It can create blog articles, emails, social media posts, and ad copy, offering voice and tone customization and plagiarism checking.
Copy.ai integrates multiple LLMs such as GPT and Claude even in its free version. Business users will likely need a paid plan, but the free tier may suffice if you only manage one channel.
Image Generation
Best for: Designers, marketers, and creatives needing visuals
AI image generators create unique graphics from simple prompts—no design skills required.
8. Stable Diffusion
Stable Diffusion is one of the most advanced free AI image generators. It comes in three main models—each with different sub-versions—so you can pick the one that fits your needs best. It takes a bit of effort to install and run, but it produces some of the best results out there for free.
Whether you need it for work, fun, or to practice graphic design, it’s one of the best free AI tools available.
9. Leonardo AI
Leonardo AI is arguably the best AI photo generator. Its free version doesn’t have all the bells and whistles of Stable Diffusion, but it’s easier to get started with. Its abundant learning resources and simple interface make it easy to jump in and start creating.
Some features like post-generation editing are behind a paywall, but if all you need is an image generator, it’s hard to argue against Leonardo AI. Its free version is great for quick, quality visuals.
Video Creation
Best for: Content creators, educators, and social media managers
These AI tools help you produce engaging videos with ease, from talking-head avatars to cinematic visuals.
10. DeepBrain
People spend an average of 52 minutes a day watching videos on social media, so it’s no surprise that AI video generators are gaining popularity. And DeepBrain is one of the best free AI solutions in this area.
It allows you to create realistic digital avatars, narrate videos with text-to-speech, and use built-in templates. It’s similar to using a conventional video editing program, but the app does the heavy lifting. While there are paid plans with more features, you still get a lot in the free version.
11. Runway
For more advanced video generation, Runway offers more powerful machine learning models and functionalities. That means a steeper learning curve, but also better results.
Runway’s latest model requires a subscription, but you can use its older version for free. And while using the app to its full potential takes practice, there are plenty of tutorials to help you get started.
Web and Social Media
Best for: Entrepreneurs, influencers, and small teams
Whether you’re launching a website or managing your online brand, these AI-powered tools simplify design, scheduling, and outreach.
12. Wix
Wix is the best AI app if you want to build a website but lack design or programming skills. You may already be familiar with Wix as a drag-and-drop web builder, but have you tried its AI-powered tools?
Using Google Gemini, Wix can generate entire site designs, write content, create images based on your input, and even optimize your content for search rankings. The tool does the bulk of the design work, and you simply fine-tune its output to your liking. Of course, you’ll need a paid plan for some of the advanced functionalities, but the free version is an excellent starting point.
13. Publer
Publer is one of the best free AI apps for managing social media. It can generate text, images, and hashtags, helping you create engaging posts more quickly. Its scheduling options make the process more efficient, and the handy search tools helps you find inspiration for your posts.
Publer’s free version is limited to one user, but that’s ideal for solopreneurs and influencers.
Project Management
Best for: Remote teams, startups, and project managers
AI streamlines task tracking, automation, and collaboration so you can focus on what matters.
14. Zapier
Automation is a leading workflow management trend, and brings AI to that process.
Zapier brings AI into the world of automation. You can use its chatbot to describe what you want to automate, and it will build the process for you. It’s an excellent way to save valuable time on tedious tasks, such as setting up email campaigns or workflows.
Zapier also integrates with thousands of other apps—particularly useful in a world where companies use 112 distinct software on average.
15. Fathom
Fathom is another handy productivity tool and the best AI app for taking notes and summarizing meetings, so you don’t need to worry about jotting everything down by hand.
It creates detailed, well-organized notes of video and audio meetings and lets you quickly transfer those into project management platforms like Slack and Salesforce.
16. Height
Height is an automated project management platform. It offers everything you’d expect from a project tracker—calendars, spreadsheets, chat, and visualization features—topped with generative AI functionality.
Height can auto-generate summaries, create tasks from messages, and provide improvement suggestions. While the free version has a limited number of automation runs and seats, you won’t find more free features elsewhere.
Job Hunting
Best for: Job seekers and professionals pursuing a promotion
AI can also support your career—from job matching to resume creation and interview preparation.
17. Teal
Teal is one of the best free AI apps for crafting your resume. You can start from scratch by answering a few questions or upload an existing resume for optimization suggestions.
Better yet, Teal also offers an interview tracking tool and can match your resume to job listings. It’s a valuable tool for anyone actively job hunting.
18. InterviewAce
InterviewAce is a free, AI-powered interview simulator built specifically for data professionals. It generates realistic mock interviews tailored to your experience level, the role you’re targeting, and even the type of company you're applying to.
You get customized questions, detailed feedback on your answers, and ongoing suggestions to improve your performance. Whether you're prepping for your first data analyst interview or gearing up for a senior ML engineer role, InterviewAce helps you build confidence and sharpen your communication skills.
You Can Do a Lot with the Best Free AI Tools in 2025
No matter what your goals are, there's likely an AI tool that can support you. Some apps are exceptionally user-friendly, while others have a steeper learning curve—but every tool featured here is both free and impactful. Making the most of these technologies begins with understanding which ones align best with your needs.
If you’re ready to take your skills to the next level, 365 Data Science’s courses cover all things AI—whether you want to learn how to create it or use it effectively.
