Free AI Tools
Small, focused tools that run entirely in your browser — no account, no signup, and no data sent anywhere. Built to answer the practical questions that come up while actually using AI tools: what will this cost, which model fits, what should I actually type.
AI Cost Calculator
Estimate what a prompt will actually cost to run across ChatGPT, Claude, and Gemini's current API pricing — per request and at monthly volume.
Open tool →AI Model Comparison
A sortable, filterable table comparing current OpenAI, Anthropic, and Google model pricing and context window sizes side by side.
Open tool →Prompt Template Library
Copy-paste prompt templates for business, writing, coding, and image generation — organized by use case, ready to adapt and use.
Open tool →AI Subscription Comparison
Every current ChatGPT, Claude, Gemini, and Perplexity consumer plan and price, side by side — not API pricing, the actual monthly subscriptions.
Open tool →Token Counter
Paste any text to see an estimated token count, word count, and character count, plus context window headroom.
Open tool →Context Window Fit Checker
See whether a document, codebase, or block of text fits inside current AI model context windows — paste text or pick a preset.
Open tool →Prompt Builder
Fill in role, task, context, format, and constraints to generate a clear, ready-to-copy AI prompt.
Open tool →Prompt Quality Grader
Paste a prompt and get an instant score plus specific suggestions for making it clearer and more effective.
Open tool →AI Model Picker Quiz
Answer four quick questions about your task to get a recommended model tier — budget, balanced, or flagship.
Open tool →AI Glossary
A searchable glossary of AI and machine learning terms, explained in plain English.
Open tool →AI Time-Savings Calculator
Estimate how many hours and how much money using AI for a repeated task could save you per month.
Open tool →Caching & Batch Savings Calculator
Estimate how much prompt caching or the Batch API could save on repeated or high-volume AI requests.
Open tool →Is This a Good Use Case for AI?
A quick checklist covering stakes, verifiability, repetitiveness, and data sensitivity to guide whether a task is a good fit for AI.
Open tool →AI Model Release Timeline
An interactive, filterable timeline of major AI model releases from OpenAI, Anthropic, and Google since GPT-4.
Open tool →System Prompt Builder
Generate a ready-to-use system prompt for a custom AI assistant, GPT, or Claude Project — persona, tone, and rules.
Open tool →Team AI Cost Calculator
Compare the total monthly cost of individual subscriptions, a business/team plan, or metered API access for a team.
Open tool →AI Freelance Rate Calculator
See the gap between value-based pricing and hourly pricing once AI speeds up the work — and what that gap costs you if you don't adjust.
Open tool →Subscription vs. API Break-Even Calculator
Find the usage volume where a flat AI subscription becomes cheaper than pay-as-you-go API pricing, based on your own numbers.
Open tool →Is This AI Side Hustle Legit?
Score an AI side hustle, trading system, or money-making opportunity against nine common scam red flags.
Open tool →AI Content Production Cost Calculator
Estimate the total monthly cost of AI-generated articles, images, and video at your own production volume.
Open tool →AI Business Idea Validator
Answer five questions about defensibility, demand, and pace of change to get a read on an AI business idea.
Open tool →AI Agent Cost Estimator
Estimate the token cost of running a multi-step AI agent workflow at volume, including retry overhead.
Open tool →Newsletter Revenue Projector
Project paid subscriber count and monthly recurring revenue for a newsletter or content business over time.
Open tool →AI vs. Freelancer vs. Agency Cost Comparison
Compare the total monthly cost of an AI tool, a freelancer, or an agency for a recurring task at your own volume.
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