Browse Free AI Tools by Category
Every tool here has a genuinely free tier, and we say plainly what that tier gets you before you sign up for anything. Pick the category that matches the job you're doing. Each page rates the free plans honestly, including the ones that aren't worth your time.
How These Categories Are Organised
Eleven categories cover the work people actually bring to an AI tool: writing, image generation, video, audio and voice, coding, productivity, business and marketing, education, design, research and social media. They are grouped by output rather than by industry, because the same tool serves a marketer writing ad copy and a founder writing a landing page.
Each category page rates free tiers rather than products. That distinction matters because a well reviewed tool can have a free plan that is unusable, and a lesser known tool can have a generous one. Pick the category matching the job in front of you, then compare on allowance rather than on feature count.
What Free Tier Actually Means
Across almost every category, free means metered rather than reduced. Most free plans run the same underlying model as the paid tier, so quality on a single task is comparable. What you trade away is monthly volume, queue priority, export resolution and commercial rights. Watermarks on exports are the most common hidden limit, and commercial use restrictions are the most commonly missed one.
That pattern is consistent enough to be a rule of thumb: judge a free tier by its allowance and its licence, not by its feature list. Broader adoption trends across sectors are tracked in the Stanford HAI AI Index.
Using the Categories Together
Most real workflows cross two or three categories. A short video needs a script from writing, a voiceover from audio, and captions from video. A product launch needs copy from business, images from image generation, and scheduling from social media. Working out which step is the bottleneck tells you where a paid plan would actually help, which is usually one tool rather than all of them.
Writing & Content
Drafting, editing, paraphrasing, and summarising. ChatGPT, Claude, Grammarly, QuillBot and more, with what each free tier actually allows.
Image Generation
Text to image tools and photo editors. Which ones give you usable resolution, commercial rights, and output without a watermark on the free plan.
Video
Clip generation, editing, subtitling, and avatars. Free tiers here are the most restrictive of any category, so the export limits matter most.
Audio & Voice
Text to speech, voice cloning, transcription, and music. Watch the monthly character and minute caps, which is where these tools differ.
Coding & Development
Autocomplete, code review, debugging, and agents. Includes which assistants stay free for individuals and which quietly moved behind a paywall.
Productivity
Notes, meeting summaries, scheduling, and research assistants. The largest category, and the one where free tiers tend to be most generous.
Business & Marketing
Copywriting, ads, CRM helpers, and analytics. Free plans here usually cap seats rather than usage, so team size is the thing to check.
Education
Study aids, lesson planning, flashcards, and explanation tools. Several offer full free access with a student or teacher email address.
Design
Logos, mockups, layout, and background removal. Check the licence terms before commercial use, because free output is not always yours to sell.
Research
Literature search, paper summarising, citation help, and data extraction. Useful whether or not you sit inside an academic institution.
Social Media
Caption writing, scheduling, hashtags, and repurposing. Free tiers typically limit connected accounts rather than posts, so plan around that.
Free tiers change often, and not always in your favour. We recheck these pages regularly, but confirm the current limits on the tool's own pricing page before you build a workflow around it. If a tool has changed, tell us and we'll update it.