171 Free AI Tools

Master List of 171 Free / Free-Tier AI Tools (with Hyperlinks)

Artificial Intelligence is everywhere right now. What was once the domain of researchers and startups with million-euro budgets has become accessible to anyone with a web browser. You don’t need a PhD in machine learning or a cloud computing contract to experiment with AI anymore.

Today, there are hundreds of free AI platforms, free-tier tools, and open-source frameworks available to try. Some are powerful enough to replace expensive software. Others are fun experiments or useful in very specific niches. But which of them are actually worth using?

That’s exactly what this guide covers. We’ve compiled 177 free and free-tier AI tools into one place, grouped by category, with quick notes on what they do and which ones stand out.

Whether you’re a creator, student, developer, or just curious about AI, this is your ultimate guide to free AI platforms in 2025.

AI Writing & Productivity Tools

If you’ve seen the AI boom, you’ve probably seen it here first. Writing, brainstorming, summarizing, and research are where AI tools exploded. Not every writing bot is created equal, though — some are genuinely transformative, others are gimmicks.

The Best:

• ChatGPT — Still the benchmark for AI chat and text generation. The free tier gives access to GPT-3.5, which is more than enough for brainstorming, drafting, and coding help.
• Claude — Widely considered the best competitor to ChatGPT, with strengths in long-form text and analysis. Free version available.
• Perplexity — Think of it as Google Search with AI brains. Great for quick research, fact-checked summaries, and citations.
• Grammarly — Less flashy, but still essential. Grammar and clarity suggestions powered by AI, free forever.
• Copy.ai — Best for marketers and entrepreneurs who need product descriptions, ad copy, and slogans.

Also worth trying:

• MagicSchool AI for teachers (personalized lesson plan generation).
• Notion AI if you already use Notion.
• Microsoft Copilot — embedded right into Word, Excel, and Edge.
• Airtable AI Assistant for workflow automation.
• Toolsaday and PicsArt AI Writer for smaller tasks.

👉 If you only pick two: ChatGPT and Perplexity — they’ll change the way you work and learn.

AI Image & Video Tools

AI images went from weird, blurry blobs to museum-level artwork and photorealistic designs in under two years. Some of the tools on this list are playful and fun, while others are serious enough for commercial use.

The Best:

• Leonardo.Ai — One of the strongest free-tier image generators right now. It produces production-quality assets quickly.
• Runway — The best AI video editor with free options. From text-to-video to background replacement, it feels futuristic.
• Fliki — Turns text into videos with realistic voices. A lifesaver for marketers and content creators.
• Freepik AI Image Generator — Surprisingly strong for quick, polished images.
• remove.bg — Does one thing perfectly: removing backgrounds instantly.

Also worth trying:

• Craiyon — the fun, free DALL·E mini model.
• Fotor, Pixlr, and Freepik Image Upscaler for editing and fixing images.
• Lumen5 — automated social video creation.

👉 If you’re experimenting with AI visuals for professional use, start with Leonardo.Ai, Runway, and Fliki.

AI Discovery & Directories

With thousands of AI tools appearing every year, directories are your map through the chaos. The best ones don’t just list tools — they categorize, filter, and update daily.

The Best:

• Futurepedia — The largest, most recognized AI directory. Updated constantly.
• Toolify.ai — A massive, filterable hub (26,000+ tools).
• There’s An AI For That — Search for an AI tool by task — from “write my CV” to “generate TikToks.”
• AIxploria — Dedicated “free tools” section, great if you don’t want to hit paywalls.

Also worth noting:

• AI Scout (365 free tools).
• Insidr.ai.
• OpenFuture AI.
• TopAI.tools.

👉 For anyone new to AI, Futurepedia + There’s An AI For That will save you hours of Googling.

Open-Source Libraries & Frameworks

For developers, researchers, and technical hobbyists, the open-source ecosystem is where the real horsepower lies. These aren’t casual tools — they’re frameworks used by companies and universities worldwide.

The Best:

• TensorFlow — Google’s machine learning powerhouse. Free, open-source, and industry-standard.
• Keras — Built on TensorFlow, excellent for deep learning projects.
• Scikit-learn — A classic Python ML library for data science.
• fastText — Efficient word embeddings from Meta.
• XGBoost — One of the most popular ML algorithms in the world.
• Hugging Face Models (BLOOM, GPT-J, Mistral) — The community hub for open LLMs.

Also notable:

• Caffe, Apache Mahout, KNIME, PyTorch alternatives like MLpack.
• Robotics frameworks like ROS and OpenCV.

👉 For devs: TensorFlow + Hugging Face models are where to focus in 2025.

Speech, Translation & Accessibility Tools

Not all AI tools write or draw — some listen, speak, and translate. Many of these are already enterprise-ready.

The Best:

• Whisper — OpenAI’s speech-to-text system. Free, highly accurate, multilingual.
• Google Cloud APIs (Translate, Speech-to-Text, Natural Language) — Production-level tools with generous free quotas.
• DeepL — Best AI translator for natural language.
• NVDA — A free screen reader that rivals commercial software.

Also good:

• CMU Sphinx, DeepSpeech, Festival, eSpeak.

👉 For real-world work: Whisper and DeepL are the game-changers.

Creative & Open-Source Software

AI isn’t just about writing or coding — it’s also embedded into creative tools. These are free, open-source apps that often have AI plugins.

The Best:

• Blender — 3D modeling with AI plugins. Industry-standard, free.
• GIMP and Krita — The open-source Photoshop/Painter alternatives, with AI brushes and plugins.
• Godot — Free game engine with AI scripting.
• Stockfish and Leela Chess Zero — Chess engines that are AI legends.

👉 For creatives, Blender and Krita are must-installs.

Business & Productivity Software

Some of the free tools are less flashy but hugely practical — from accounting to CRM.

The Best:

• ERPNext and Odoo — Free ERP/CRM platforms with AI extensions.
• SuiteCRM — Open-source CRM.
• GnuCash — Free accounting.

👉 They’re not “AI” at the core, but they’re business-critical tools with AI automation options.

Honorable Mentions & Niche Gems

• remove.bg — One of the most useful “single-purpose” AI tools.
• 1DayLater — Free invoicing (old but still useful).
• Perchance — Random generator platform, used for creative projects.
• Rubii — AI character chat/art creation.
• Skywork, i10X, Trickle — All-in-one productivity AIs.

Final Thoughts: Which Free AI Tools Are Actually Worth It?

With 177 free AI platforms in this guide, it’s easy to feel overwhelmed. The truth is, you don’t need them all.

Here are the standouts that deliver the most value in 2025:

• ChatGPT, Claude, Perplexity → for writing, research, and conversation.
• Grammarly, Copy.ai, Notion AI → for productivity and polished communication.
• Leonardo.Ai, Runway, Fliki → for visuals, video, and creative projects.
• Futurepedia, Toolify, There’s An AI For That → for discovering new tools.
• TensorFlow, Hugging Face, Scikit-learn → if you’re a developer.
• Whisper, DeepL, Google Cloud APIs → for translation and speech.
• Blender, Krita, GIMP → for creative professionals.
• ERPNext, Odoo, GnuCash → for business use cases.

The beauty is that all of these are free to start with. You can experiment today, integrate them into your workflow tomorrow, and decide which are worth upgrading to premium later.

AI is no longer locked behind corporate labs — it’s in your hands.

👉 Bookmark this guide, share it with friends, and dive in. The best AI tool for you might be one you haven’t tried yet.

List In Full:

1. Craiyon – Easy-to-use AI image generator with free access.
2. Freepik AI Image Generator – Generate photorealistic images from text prompts with a free plan.
3. Freepik Background Remover – Remove image backgrounds automatically under free tier.
4. Freepik Image Upscaler – Upscale images up to 10K for free.
5. Fotor – Online photo editor with free tools like cropping, collage, filters.
6. ChatGPT – Free-to-use conversational AI for chat, insights, and task automation.
7. Toolsaday – AI email, marketing, social media writing tools; no sign-in required.
8. PicsArt AI Writer – Paraphrase, expand, summarize text with grammar check.
9. Perplexity AI – Chatbot–search engine combo with free tier.
10. Claude – AI for coding and conversation under free plan.
11. Lumen5 – Create video content for free with limited monthly quota.
12. Google Cloud Translation API – Free usage up to monthly limit.
13. Google Cloud Speech-to-Text API – Free usage with quota.
14. Google Cloud Natural Language API – Free monthly usage limit available.
15. Google Cloud Video Intelligence API – Limited free usage available.
16. Eclipse Theia – Open-source framework for building AI-enabled IDEs.
17. Weka – Free machine-learning/data-mining suite.
18. EleutherAI – Open-source AI language models and datasets.
19. AIxploria – Over 1,500 free AI tools listed.
20. Futurepedia – AI directory with filter for free/freemium tools.
21. AI Scout – Directory listing fully free tools (365 listed).
22. Insidr.ai – “Free Tools” category in 500+ AI list.
23. Runway – AI video and image editing tools with a free tier for basic exports and effects.
24. Grammarly – AI-assisted writing enhancement including grammar and clarity suggestions at no cost.
25. MagicSchool AI – Creates personalized K–12 educational content, currently free.
26. Semantic Scholar – AI-powered academic search and paper summarization tool.
27. OpenAI Playground – Explore and test AI models for free within usage limits.
28. Toolify.ai – Massive directory of 26,000+ AI tools across 450+ categories.
29. AI Tools Directory (Top AI Tools) – Searchable list of nearly 19,000 AI tools by category.
30. Futurepedia – Directory listing over 5,500 AI tools.
31. AIxploria Free Tools – Directory with a “Mini Free Apps” section.
32. AI Scout – Over 365 free AI tools across categories like writing, coding.
33. Insidr.ai Free Tools – Curated “Free Tools” section.
34. FutureTools.io – Aggregator site organizing AI tools by use cases.
35. There’s An AI For That – Directory to help find AI tools for any task.
36. GitHub AI Tool Directories – Collections of AI directories.
37. Altern AI Search – Search engine to discover AI tools.
38. AIDir.wiki – Wiki-style directory highlighting AI tools.
39. AI PEDIA HUB – Daily-updated directory of AI tools.
40. Scikit-learn – Widely used Python ML library.
41. Caffe – Deep learning framework for image classification.
42. Apache Mahout – Scalable machine learning library for big data.
43. Orange – Visual programming/data mining toolkit.
44. RapidMiner – Predictive analytics tool with free usage.
45. TPOT – AutoML tool using genetic programming.
46. Neural Network Intelligence (NNI) – Microsoft’s toolkit for hyperparameter tuning.
47. MindsDB – AutoML platform integrating ML into SQL databases.
48. OpenCog – Framework aiming at AGI, open-source.
49. OpenTools.ai – AI tool directory.
50. Grabon AI Directory – Global AI tools directory.
51. God of Prompt – Collection of 1,000+ AI tools.
52. Find my AI Tool – Discovery platform for business AI tools.
53. OpenFuture AI – Accurate, updated AI tools database.
54. PoweredbyAI – AI tools and prompts directory.
55. Productivity Tools (curated) – Productivity AI tools.
56. Pugin – Directory of AI plugins.
57. TopAI.tools – Daily updates of top AI tools.
58. Tool Pilot – Navigation hub for AI tools.
59. AIToolsInfo – In-depth AI tool directory and reviews.
60. FutureTools.io – Organizes AI tools by use case.
61. Futurepedia – Daily-updated AI directory.
62. Shogun – C++ ML library.
63. mlpack – C++ ML library.
64. Apache SystemDS – End-to-end ML system.
65. Jubatus – Framework for distributed ML.
66. KNIME – Data pipelining/ML tool.
67. fastText – Word embedding library.
68. XGBoost – Gradient-boosted trees library.
69. Apache OpenNLP – NLP library.
70. Apertium – Rule-based translation.
71. ChatScript – Dialog engine.
72. Gensim – Topic modeling library.
73. GloVe – Word vectors.
74. Mallet – Java NLP toolkit.
75. MontyLingua – NLP library.
76. Moses – Statistical machine translation.
77. NiuTrans – Translation platform.
78. NLTK – NLP toolkit.
79. spaCy – Industrial NLP library.
80. Spark NLP – Advanced NLP for Python/Java/Scala.
81. Word2vec – Word vector representation.
82. CMU Sphinx – Speech recognition toolkit.
83. DeepSpeech – Speech-to-text engine.
84. Whisper – Speech recognition model.
85. DeepSeek – Open-source LLMs.
86. GPT-J – EleutherAI LLM.
87. GPT-1 – OpenAI’s first LLM.
88. GPT-2 – Larger LLM.
89. XLNet – Google’s LLM.
90. BERT – Transformer model.
91. T5 – Text-to-Text Transformer.
92. AForge.NET – Robotics/AI library.
93. OpenCV – Computer vision library.
94. ELKI – Java clustering/outlier detection.
95. OpenNN – Neural network library.
96. ArduPilot – Open-source autopilot.
97. CoppeliaSim – Robot simulator.
98. Gazebo – Robotics simulator.
99. MRPT – Robotics toolkit.
100. OpenRTM-aist – Robotics middleware.
101. Paparazzi UAV – Open-source UAV autopilot.
102. Player Project – Robotics platform.
103. Python Robotics – Python robotics suite.
104. ROS – Robotics middleware.
105. Webots – Robot simulator.
106. AIToolsClub – Curated AI collection.
107. AI Cyclopedia – AI encyclopedia.
108. WikiGlitz – Hub for AI tools.
109. AI Tool Hunt – Aggregated AI directory.
110. AITopTools.com – AI tools listing.
111. AI Tools Directory – Curated AI software list.
112. Google Cloud Free AI Tools – Google AI free-tier tools.
113. Gemini – Google’s AI assistant.
114. Microsoft Copilot – AI assistant in Office.
115. Copy.ai – Marketing copy generator.
116. BLOOM – Open multilingual LLM.
117. DBRX – Open-source LLM.
118. Emacspeak – Audio desktop.
119. eSpeak – Compact speech synthesizer.
120. Festival Speech Synthesis – Multilingual TTS.
121. MARF – Audio/speech framework.
122. NVDA – Screen reader for Windows.
123. Dasher – Text input software.
124. Blender – 3D creation suite.
125. FreeCAD – Parametric CAD.
126. GIMP – Image editor.
127. Inkscape – Vector graphics editor.
128. Krita – Digital painting.
129. Hugin – Panorama stitching.
130. Darktable – RAW photo processing.
131. digiKam – Photo management.
132. RawTherapee – RAW workflow.
133. Posit (RStudio) – IDE with AI aids.
134. QGIS – GIS platform.
135. PDFsam Basic – Split/merge PDFs.
136. Jupyter Notebook – Interactive computing.
137. Keras – Neural network library.
138. TensorFlow – ML framework.
139. NumPy – Numerical library.
140. pandas – Data manipulation.
141. SciPy – Scientific computing.
142. Matplotlib – Plotting library.
143. SageMath – Symbolic AI math.
144. SymPy – Symbolic mathematics.
145. GNU Octave – Numerical analysis.
146. Scilab – Numerical computing.
147. Godot – Game engine with AI scripting.
148. Stockfish – Chess engine.
149. Leela Chess Zero – Neural chess engine.
150. OpenAI gpt-oss-120b – Open-weight LLM.
151. h2oGPT – Open-source LLM suite.
152. Mistral Mathstral 7B – Open model for STEM.
153. Mistral Mixtral 8×22B – Open-weight MoE model.
154. Free Document Maker – Browser-based free docs.
155. Pixlr – Online image editor with AI.
156. GnuCash – Accounting software.
157. ERPNext – Open-source ERP.
158. Odoo – ERP, CRM, CMS platform.
159. SuiteCRM – CRM system.
160. Openbravo – ERP solution.
161. 1DayLater – Free invoicing software.
162. Grok – AI assistant by xAI.
163. Notion AI – Workspace AI assistant.
164. Airtable AI Assistant – No-code workflow AI.
165. Perchance AI – Random generator platform.
166. OpenAI – AI research & deployment.
167. Rubii – AI character chat/art.
168. Skywork – Workspace AI agent.
169. i10X – All-in-one AI platform.
170. Trickle – Build apps/sites with AI.
171. Redesignr AI – Website/landing page builder.