Free AI tools by WikiAI

Free AI Tools for Your Business

Save time and get more done with practical tools for AI and everyday business work. Simple, fast and free, with no sign-up. They run in your browser, so what you type stays on your device.

Available tools

  • 01 Free tool

    AI Prompt Generator

    Create better prompts for ChatGPT, Claude, Gemini, AI agents, n8n, and image and video generators. Includes a prompt improver.

    • 8 AI destinations
    • 25 task categories
    • Prompt completeness score
    • Improve an existing prompt
    Better prompts, better answers
  • 02 Free tool

    AI Automation ROI Calculator

    Estimate hours recovered, labor capacity value, net savings, ROI and payback for automating a repetitive process, with transparent formulas.

    • Simple and advanced modes
    • Example scenarios
    • 12-month projection chart
    • Printable ROI report
    Transparent, formula-based estimates
  • 03 Free tool

    Free Invoice Generator

    Create, preview and download professional invoices with your logo, tax, discounts and payment details. Drafts are saved on your device.

    • 4 invoice templates
    • 11 currency formats
    • Exact automatic totals
    • Logo upload and PDF download
    No account, saved on your device
  • 04 Free tool

    Free Email Verifier

    Verify syntax, domain, MX records, disposable and role addresses and typos, then add company and public-profile intelligence backed by evidence.

    • Deliverability status and confidence
    • MX, SPF, DKIM and DMARC signals
    • Typo and disposable detection
    • Evidence-based company intelligence
    Evidence, never guesses
  • 05 Free tool

    SEO Keyword Research & Blog Writer

    Find keyword ideas by search intent, build an SEO, AEO and GEO-ready content brief with an AI writing prompt, and score your draft before you publish.

    • Keyword ideas by intent
    • Content brief and outline
    • AI writing prompt
    • On-page SEO, AEO and GEO score
    SEO, AEO and GEO in one place
  • 06 Free tool

    Resume & CV Builder

    Create a clean, ATS-friendly resume or CV with live preview, a resume check with a bullet coach, job-ad keyword matching and PDF download.

    • ATS-friendly templates and check
    • Job description keyword match
    • Bullet coach
    • Live preview and PDF
    No sign-up, no watermark
  • 07 Free tool

    Upwork Proposal Generator

    Paste an Upwork job post and get a short, client-first proposal from your real experience, with screening-word detection and live checks.

    • Detects screening instructions
    • Finds client questions and needs
    • 3 opening lines to choose from
    • Live proposal checks
    No invented claims
  • 08 Free tool

    Word to PDF & PDF to Word

    Convert Word documents to PDF and PDF files to editable Word documents without uploading them anywhere.

    • Word (.docx) to PDF
    • PDF to Word (.docx)
    • Files never leave your device
    • No sign-up or limits
    Private: nothing is uploaded
  • 09 Free tool

    AI to Human Text Converter

    Find robotic phrasing, filler and monotone sentences in AI-assisted text, and rewrite them into clear, natural language you can edit.

    • Flags AI-style phrases
    • One-click natural rewrites
    • Sentence rhythm and readability
    • Side-by-side changes
    Clear writing, honestly
  • 10 Free tool

    Marketplace Listing Generator

    Create optimized eBay, Etsy and Amazon listings from one product, with compliance checks, a quality score, a profit calculator and a product image studio.

    • eBay, Etsy and Amazon rules
    • Image Studio with background remover
    • Compliance checks and quality score
    • Profit calculator and exports
    One product, three marketplaces
Ready-made versions

The same free tools, already set up for a specific job.

AI Prompt Generator

Invoice Generator

Marketplace Listing Generator

Why use these tools

Built for Creators, Businesses and Teams

  • 100% freeNo sign-up, no trial, no card
  • Instant resultsEverything runs in your browser
  • Private by designWhat you enter stays on your device
  • Works on any deviceBuilt for phones and desktops
How it works

Three Steps, No Account

  1. Step 1

    Pick a tool

    Choose the tool that matches the job in front of you.

  2. Step 2

    Add your details

    Fill in a few fields. Examples show you what good input looks like.

  3. Step 3

    Use the result

    Copy, download or print it, and come back to it later on this device.

Guides

A Free Guide for Each Tool

Every tool has a step-by-step guide that explains the job behind it, so you know what a good result looks like.

Free Tools: Common Questions

Are these tools really free?
Yes. Every tool on this page is free to use, with no sign-up, no trial and no credit card.
Do I need to create an account?
No. Open a tool and start. There is no login or email required, so you can use any tool straight away on a phone or computer.
Is what I type sent to a server?
For almost every tool, no: the work happens in your browser. The exception is the email verifier. Its Quick Check sends only the domain to a public DNS resolver, and its Deep Check sends the address to our server for the duration of the request without logging or saving it. See our privacy notice for details.
Will my work be saved?
Some tools, such as the invoice generator, resume builder, prompt generator and marketplace listing generator, keep your recent work in your browser’s storage on this device, so you can come back to it later. Nothing is synced to other devices, and clearing your browser data removes it. Download or copy anything you want to keep.
Which tool should I start with?
Start with the job in front of you: send a bill with the invoice generator, clean a contact list with the email verifier, or check whether automating a task is worth it with the automation ROI calculator. Each tool links to a step-by-step guide in the list above.
Can you build a custom tool or automation for my business?
Yes. The free tools handle one task at a time; our services connect the whole process, from AI agents to n8n workflows. If you are new to automation, our n8n beginner’s guide shows how a simple workflow is built.

From a Single Prompt to a Complete AI System

Free tools help with one task at a time. We build AI agents and automated workflows that run the whole process for you.

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