Stop juggling ten browser tabs and five paid subscriptions. PromptHub now bundles 87+ free AI tools across 22 specialized hubs — all powered by Google Gemini, all free, all with no account required. Write, code, plan, sell, hire, learn, travel, cook, invest and chat — in one place.
This is the only guide you need to find the right tool for any task.
What is PromptHub?
PromptHub started as a marketplace for AI prompts. Today it's a complete free AI toolbox: curated prompts, a blog, and 22 hubs that each group the tools for one job. Everything runs server-side, renders instantly, and includes copy/share buttons so you can use or share any result.
The best way to explore: start on the All AI Tools page, then dive into the hubs below.
1. Write & Publish
AI Writer Studio — 3 tools
Write full SEO↗ Bright Coding Blog blog posts, generate click-worthy meta titles & descriptions, and rewrite any content in seconds. Publish-ready HTML, ready for WordPress↗ Bright Coding Blog.
AI Social Studio — 4 tools
Captions for Instagram/TikTok/X/LinkedIn, a ranked hashtag strategy, high-retention YouTube scripts and platform-ready ad copy.
AI Email Studio — 4 tools
Cold emails that get replies, 3-step follow-up sequences, engaging newsletters and an email rewriter for tone and clarity.
AI Marketing Studio — 4 tools
Memorable slogans, conversion-focused landing page copy, wire-ready press releases and multi-channel campaign ideas.
2. Build & Grow
AI Code Lab — 4 tools
Generate code from plain English, explain any snippet, debug errors with root-cause fixes, and optimize SQL queries.
AI Product Studio — 8 tools
The full PM toolkit: PRDs, user stories with acceptance criteria, roadmaps, RICE/MoSCoW prioritization, positioning, product naming, launch plans and competitive analysis.
AI Business Studio — 4 tools
Business names, business plans, investor-ready pitch decks and pricing strategies with anchoring and A/B test plans.
AI SEO Studio — 4 tools
Keyword clusters by search intent, rank-ready content briefs, FAQ JSON-LD schema and SEO product descriptions.
AI E-commerce — 3 tools
Benefit-first product descriptions, Amazon/Shopify listing titles and professional review replies.
AI Excel & Data Studio — 4 tools
Explained Excel formulas, step-by-step data cleaning plans, a regex builder for any language and rigorous data analysis plans.
3. Career & Hire
AI Career Studio — 9 tools
The complete job-search suite: cover letters, resume summaries, interview prep, resume tailoring to any job ad, ATS resume checks, quantified achievements (STAR), resume translation, LinkedIn optimization and career gap explanations.
AI HR Studio — 3 tools
Inclusive job descriptions, structured onboarding plans with 30/60/90 goals, and credible reference letters.
4. Learn & Analyze
AI Education Hub — 8 tools
Teacher-first: lesson plans, printable worksheets with answer keys, tests with rubrics, grading rubrics, unit planners, report card comments, study guides and a free AI tutor.
AI Learn Hub — 4 tools
Student-first: text summarizer, flashcards for active recall, quiz generator and spaced-repetition study plans.
AI Vision — 2 tools
Image to prompt for Midjourney/DALL-E/Stable Diffusion, and SEO alt text — via Gemini Vision.
5. Lifestyle & More
AI Fitness Studio — 3 tools
Workout plans, balanced meal plans and no-gym home workouts with progressions.
AI Food Studio — 3 tools
Recipes from any ingredients, a week of meal ideas and smart ingredient substitutions with ratios.
AI Travel Studio — 3 tools
Day-by-day itineraries, smart packing lists and practical destination guides.
AI Real Estate Studio — 4 tools
Sell-fast listing descriptions, tenant-ready rental ads, home staging checklists and buyer-focused neighborhood guides.
AI Finance Hub — 4 tools
The money basics — budgets (50/30/20), savings goals, debt payoff (snowball/avalanche) and investing fundamentals. Educational only, not financial advice.
AI Story Studio — 3 tools
Complete short stories, chapter-by-chapter book outlines and 10 story titles with loglines.
6. Assistant
AI Chat — free AI assistant
Ask anything, get answers instantly. Code, writing, research, brainstorming — with conversation memory. It's the fastest way to get unstuck on any task.
How to combine the hubs (the real superpower)
Individually each tool saves minutes. Combined, they replace entire workflows:
- Launch a product → Positioning → PRD → User Stories → Roadmap → Naming → Landing Page → Press Release → Ad Copy.
- Get a job → ATS Check → Tailor Resume → Achievements → Cover Letter → LinkedIn → Interview Prep.
- Start a business → Business Plan → Pricing → Pitch Deck → Competitive Analysis.
- Publish content → Content Brief → Blog Post → Meta Tags → FAQ Schema → Captions + Hashtags.
Why people keep coming back
- Truly free — no account, no credit card, no credit system.
- Fast — most tools generate in 15–60 seconds.
- Private — everything processes server-side; only what you share creates a public link.
- Reusable — every result is copyable and shareable with one click.
- Always improving — new tools and hubs are added regularly.
Frequently asked questions
Are all these AI tools really free? Yes. Every hub and tool on this page is free with no account required, powered by the free Google Gemini API tier.
Which AI model powers them? Google Gemini Flash, with automatic fallback to free OpenRouter models. The Image Analyzer uses Gemini Vision.
Do I need an account to use them? No. All tools work instantly, and results are full server-rendered HTML you can copy or share.
Can I use the outputs commercially? Yes. Content, code, plans and copy are yours to use and edit. Review important outputs (finance, legal, code) before relying on them.
How are the hubs organized? By job: Write & Publish, Build & Grow, Career & Hire, Learn & Analyze, Lifestyle & More, plus AI Chat for everything else.
Ready to try it?
Browse the full list of AI tools, or jump straight into the most popular hubs: AI Writer, AI Code Lab, AI Career Studio and AI Chat.
The best free AI toolbox on the internet is one click away — bookmark this page and never pay for an AI tool again.
