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Useful tools should be simple.

Calculate AI costs, check hardware, and work with PDFs, images, and data. Start in your browser, without an account.

No account requiredYour inputs are not stored by UsefulAtlasMethods & limitations

A useful place to start.

Go straight to the task. Keep the result, not the busywork.

All 69 tools
AI API costEstimate token spend before you commit to an AI workflow.Local AI fitCheck model memory fit against your GPU and RAM.PDF ToolboxAnnotate, merge and organize PDF pages. No file upload.Image ToolboxResize, convert and clean image metadata in your browser.Subscription auditSee recurring costs and choose what you would cancel.Automation ROICompare time value, running costs and setup payback.QR StudioCreate a QR code or inspect where an existing one leads.CSV Profiler & CleanerFind missing values and duplicates, then export clean data.

One decision. A clearer next step.

Choose the question you are working through.

Check local AI hardwareSee whether your RAM, VRAM, model size, quantization, and context window are a realistic fit.Estimate AI API spendModel token volume, request frequency, current provider prices, caching assumptions, and monthly usage.Compare local and cloud AICompare API usage with hardware, electricity, maintenance, resale, and total cost of ownership.Compare local image AI with cloud APIsCalculate when a Stable Diffusion or ComfyUI GPU setup could pay back against cloud image generation.Measure automation ROIEstimate time saved, labor value, monthly benefit, payback, and 12-month ROI for a workflow.Prepare an image locallyResize, compress, or convert PNG, JPEG, and WebP images without uploading the file.

Tool-connected guides

Go deeper after the calculator

Use focused guides when a result needs setup steps, tradeoffs, or a more complete decision path.

Run AI locally

Local AI

Open hub

Local AI setup guides, model-choice help, hardware checks, privacy tradeoffs, and small-team self-hosting resources.

Can I Run AI Locally on My Windows PC? Hardware GuideBest AI Models to Use With Ollama for BeginnersHow to Install LM Studio Locally for Local AI Chat
Plan AI automation

AI Automation

Open hub

Guides, comparisons, and calculators for choosing AI agents, automation stacks, API usage, self-hosting, and workflow cost tradeoffs.

AI Agent Builders Compared: n8n, Dify, Make, ZapierSelf-Host n8n or Dify: Cost and Privacy Tradeoffs

Editor picks

Guides worth starting with

All guides
Guide

Can I Run AI Locally on My Windows PC? Hardware Guide

Check whether your Windows PC can run local AI, what RAM, GPU, VRAM, and storage matter, and when upgrades or cloud APIs make more sense.

9 min read

Guide

Best AI Models to Use With Ollama for Beginners

Pick beginner-friendly Ollama models for chat, coding, summaries, weak PCs, and local AI testing without downloading models your computer cannot run.

7 min read

Guide

AI Agent Builders Compared: n8n, Dify, Make, Zapier

Compare n8n, Dify, Make, and Zapier for AI workflows, agents, self-hosting, integrations, privacy, and small business automation.

9 min read

Guide

Self-Host n8n or Dify: Cost and Privacy Tradeoffs

Compare self-hosting n8n or Dify with hosted plans, including planning cost ranges, setup time, AI API costs, privacy, and maintenance.

9 min read

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