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Best AI & Business Tools — 100% Free

Plus free PDF tools and converters — no sign-up, files never leave your device.

53 free tools8 categoriesNo account neededWorks on your phone

Step-by-step guide

New to this tool? Read our full guide: How to Scan Documents to PDF with Your Phone — with screenshots-free, plain steps, tips and answers.

Premium Tools — Free Here

12 toolsPaid elsewhere · $0 here

These are the tools other websites put behind a paid plan or a sign-up wall. Here every one of them is completely free — no account, no watermark, no trial. Everything a small business needs, in one place.

Free forever

Every tool is free — no trials, no watermarks, no catches.

No sign-up

No accounts, no email walls. Open a tool and use it.

Files never leave your device

PDF and image tools run 100% in your browser.

Works on any phone

Every tool is built for small screens first.

Tool Dashboard

Best AI & Business Tools — 100% Free

Plus free PDF tools and converters — no sign-up, files never leave your device. Every tool below is organized into sections and sub-sections — pick a section on the left, or search across all of them.

AI Background Remover AI

One click removes the background from any photo — full resolution, no watermark.

Choose your photo

No image chosen yet.

How to use it

  1. Choose a photo — people, products and pets work best.
  2. Tap “Remove background” and wait a few seconds.
  3. Download your transparent PNG, full size, no watermark.

More AI & image tools

AI Resume Builder AI

Fill in your details, add your photo — a clean, professional resume builds itself in the template style employers know. Download the PDF free.

Your details

Add your photo for the professional template look — it stays in this page and is never uploaded anywhere.

Your resume

How to use it

  1. Type your details — the resume updates as you type.
  2. Check the wording in the preview.
  3. Download the PDF and send it with your application.

More tools

Free Invoice Generator

Fill in the boxes — your invoice builds itself. Download it as a PDF when you're done.

Your details

Preview

How to use it

  1. Type your business name and your client's name.
  2. Add each job or product, with quantity and price.
  3. Download the PDF and send it to your client.

More invoice tools

Estimate / Quote Generator

Give your customer a clear price before the job starts — no surprises for anyone.

Your details

Preview

How to use it

  1. List every part of the job with its price.
  2. Check the total in the preview.
  3. Download and send it — when the client says yes, turn it into an invoice.

More invoice tools

Receipt Generator

Proof of payment your customer can keep — with a big, clear PAID stamp.

Your details

Preview

How to use it

  1. Write what the customer paid for.
  2. Check the total matches what you received.
  3. Download the PDF and hand it over — done.

More invoice tools

Invoice Number Generator

Every invoice needs its own number. Set your style once — get the next number in one tap.

Your numbering style

Example: prefix “INV-”, number 1001, 4 digits → INV-1001.

Your next invoice number

INV-1001

How to use it

  1. Set your prefix and the number you want to start from.
  2. Tap “Copy number” and paste it into your invoice.
  3. Tap “Use it” — the next number is ready for next time.

More invoice tools

Late Fee Calculator

A client paid late? Work out a fair late fee in seconds.

The overdue invoice

Many businesses charge 1–2% per month. Check what your agreement or invoice terms say before adding a fee.

The fee

LATE FEE
$10.00
Original invoice$500.00
Total now owed$510.00

How to use it

  1. Type the invoice amount and how many days late it is.
  2. Add your monthly late-fee rate.
  3. Send a polite reminder with the new total.

More invoice tools

Profit Margin Calculator

What it costs you, what you sell it for — and what you actually keep.

Your numbers

Your result

Profit per sale$35.00
Profit margin46.7%
Markup87.5%
Healthy margin ✓

How to use it

  1. Type what one item or job costs you.
  2. Type what you charge for it.
  3. Aim for a margin of 30% or more — below 20%, raise the price or cut the cost.

More calculators

Hourly Rate Calculator

Start from the income you want — we'll work backwards to your hourly rate.

Your goal

“Billable” means hours a client pays for — not admin, quotes or travel.

Your rate

CHARGE AT LEAST
$46.15 / hour

Tip: add 20–30% on top for tax, holidays and quiet weeks.

How to use it

  1. Type the yearly income you want to take home.
  2. Add the hours per week clients actually pay for.
  3. Use the rate in your quotes — and don't go below it.

More calculators

Sales Tax Calculator

Add tax to a price — or find the price before tax. Works for VAT too.

Your numbers

Your result

Price before tax$100.00
Tax amount$8.00
Total with tax$108.00

How to use it

  1. Choose “add tax” or “take tax out”.
  2. Type the amount and your local tax rate.
  3. Use the total on your invoice or price tag.

More calculators

Markup Calculator

You know your cost and the markup you want — here's your selling price.

Your numbers

Your price

SELL AT
$80.00
Profit per sale$30.00
That equals a margin of37.5%

How to use it

  1. Type what the item or job costs you.
  2. Add the markup percentage you want.
  3. That's your selling price — simple.

More calculators

Labor Cost Calculator

An employee costs more than their wage — payroll taxes and benefits add up. See the real number.

The employee

20–30% is typical. This extra amount is often called the “burden”.

The true cost

True cost per hour$25.00
Cost per week$1,000.00
Cost per year$52,000.00
Wages alone would be$41,600.00 / yr

How to use it

  1. Type the hourly wage and weekly hours.
  2. Add the extra-cost percentage (start with 25% if unsure).
  3. Use the true hourly cost when you price jobs.

More calculators

Break-Even Calculator

The exact number of sales you need each month before you make any profit.

Your costs

Your break-even point

YOU BREAK EVEN AT
34 sales / month
Revenue needed$4,080.00
You keep per sale$75.00

That's about 2 jobs per working day. Every sale after #34 is profit (before tax).

How to use it

  1. Add up your fixed monthly costs.
  2. Type your price and what each sale costs you.
  3. That number of sales is your target — everything above it is profit.

More calculators

Business Proposal Generator

Answer a few questions and get a clean, ready-to-send proposal.

The project

Your proposal

How to use it
  1. Fill in the client, the work and the price.
  2. Read the proposal on the right — edit any box to change it.
  3. Download the PDF and send it to the client.
More templates
Work Order Generator
One clear sheet for every job — who, where, what and when.
The job
  
Your work order
How to use it
  1. Fill in the customer, address and the work.
  2. Assign it to a person or team.
  3. Download it and hand it to the team doing the job.
More templates
Payment Reminder Letter
The right words to get paid — friendly first, firmer if you need it.
The unpaid invoice
Your letter
How to use it
  1. Fill in the invoice details and pick a tone.
  2. Start friendly — most late payments are just forgotten.
  3. Copy the letter into an email, or download the PDF.
More templates
Service Agreement Template
Simple, plain-English terms that protect you and your client.
The agreement
A plain-language starting template — for large contracts, have a local lawyer check it.
Your agreement
How to use it
  1. Describe the service in plain words.
  2. Set the fee and when it gets paid.
  3. Download it — both sides sign and keep a copy.
More templates
Client Information Form
One tidy sheet with everything you need to know about a new client.
Client details
  
Client sheet
How to use it
  1. Fill it in while you talk to the new client.
  2. Add anything useful in Notes — access codes, preferences.
  3. Download the sheet, or keep the client in Customer Records.
More templates
Customer Record Manager
Every customer's name, contact and notes — in one simple list.
Saved on this device: your entries are kept in this browser, so they are still here when you come back. They are stored only on your own device — never sent to or stored on our servers. Switching browser or device? Download a backup below. You can wipe everything any time with “Delete all my data”.
Add a customer
Your customers 
No customers yet.
Add your first one on the left.
Saved on this device — your list is here when you come back. For extra safety, keep a backup download in your own files.
How to use it
  1. Add each customer with a phone or email.
  2. Put anything useful in the note — preferences, access codes.
  3. Search your list any time from the Customers tool.
More management tools
Job Scheduling Calendar
Every job, in date order — so two jobs never land at the same time.
Saved on this device: your entries are kept in this browser, so they are still here when you come back. They are stored only on your own device — never sent to or stored on our servers. Switching browser or device? Download a backup below. You can wipe everything any time with “Delete all my data”.
Book a job
Coming up
Nothing booked yet.
Add a job on the left.
Saved on this device — your bookings stay here between visits. Download your work orders to keep a paper copy.
How to use it
  1. Pick the date and time of the job.
  2. Add the customer and what the job is.
  3. Jobs line up in date order — today and tomorrow are marked.
More management tools
Expense Tracker
Log what the business spends — and see the total grow by category.
Saved on this device: your entries are kept in this browser, so they are still here when you come back. They are stored only on your own device — never sent to or stored on our servers. Switching browser or device? Download a backup below. You can wipe everything any time with “Delete all my data”.
Add an expense
 
Your spending
Total spent$0.00
No expenses yet.
Add your first one on the left.
Saved on this device — your expenses stay here between visits. Keep your receipts for taxes.
How to use it
  1. Write what you bought and what it cost.
  2. Pick a category — fuel, supplies, tools…
  3. The totals at the top show where the money goes.
More management tools
Mileage Tracker
Business trips add up to real tax deductions. Log them as you go.
Saved on this device: your entries are kept in this browser, so they are still here when you come back. They are stored only on your own device — never sent to or stored on our servers. Switching browser or device? Download a backup below. You can wipe everything any time with “Delete all my data”.
Log a trip
Set this to your country's official rate — the US standard mileage rate is a common one. Change it any time.
Your trips
Total miles0
Deduction value$0.00
No trips logged yet.
Add your first trip on the left.
Saved on this device — your trips stay here between visits. Copy your totals into your tax records.
How to use it
  1. After each business drive, log the miles.
  2. Write what the trip was for — tax offices love this.
  3. The deduction value updates itself at the top.
More management tools
Payment Tracking
One glance: money in, money owed, and who to chase.
Saved on this device: your entries are kept in this browser, so they are still here when you come back. They are stored only on your own device — never sent to or stored on our servers. Switching browser or device? Download a backup below. You can wipe everything any time with “Delete all my data”.
Add a payment record
The money picture
Collected$0.00
Still owed$0.00
No records yet.
Add your first invoice on the left.
Saved on this device — your records stay here between visits. Overdue someone? Send them a reminder letter.
How to use it
  1. Add every invoice you send, with its amount.
  2. Mark it Paid when the money lands.
  3. Anything Overdue gets a reminder letter — one tap below.
More management tools
Customer Follow-Up Reminders
“I'll call you next week” — written down, so it actually happens.
Saved on this device: your entries are kept in this browser, so they are still here when you come back. They are stored only on your own device — never sent to or stored on our servers. Switching browser or device? Download a backup below. You can wipe everything any time with “Delete all my data”.
Add a reminder
Your reminders
No reminders yet.
Add your first one on the left.
Saved on this device — your reminders stay here between visits. Overdue reminders are marked in red.
How to use it
  1. Whenever you promise a call back, add it here.
  2. Pick the date and how you'll reach them.
  3. Tick them off with the ✓ button when done.
More management tools
Document Scanner
Scan paper documents with your camera — straighten each page, clean it up, and save one tidy PDF.
Add pages
No pages yet — add a photo of each page.
Your pages
AI Detector — Free AI Writing Pattern Checker
Is this text AI-written? No tool on Earth can answer that with certainty — but patterns can be measured, and this free AI Detector measures six of them honestly: AI stock phrases, sentence rhythm (burstiness), vocabulary variety, contraction rate, sentence length and repetitive sentence starters. You get an AI-likelihood score plus the signal behind every point, so you can judge for yourself instead of trusting a black box.
How to check a text
  1. Paste at least 60 words — shorter texts cannot be judged fairly by anyone.
  2. Run the check — read the score and each of the six signals.
  3. Decide like a human — a high score is a prompt to look closer, never proof on its own.
The six signals, in plain English
  • AI stock phrases — "furthermore", "delve", "plays a crucial role", "in today's world" and their relatives, counted per 100 words.
  • Sentence rhythm — human sentence lengths vary a lot; AI lengths are suspiciously even. Low variation scores high.
  • Vocabulary variety — the share of unique words. Flat, repetitive vocabulary leans AI.
  • Contractions — people write "don't" and "it's" constantly. Almost none is a formal, machine-like tell.
  • Sentence length — AI drafts cluster tightly in the 15–27 word band.
  • Sentence starters — page after page of "The…", "It…", "This…" openers is a pattern humans rarely sustain.
Frequently asked questions
How accurate is an AI detector?
Honestly: limited. Research keeps showing that detectors flag careful human writers (especially non-native English writers) and miss edited AI text. That is why this tool shows its workings and calls itself an estimate. Never accuse, grade or discipline anyone on a detector score alone.
Why did my own writing score high?
Formal writing shares habits with AI writing: few contractions, even sentences, stock transitions. Students writing carefully in a second language hit this often. The signal breakdown shows exactly which habits pushed your score up.
Can AI text score low?
Yes — a human who edits an AI draft properly (varied rhythm, own phrases, contractions) produces genuinely natural text. At that point the honest question is about the ideas, not the detector.
Is my text stored?
No. The analysis runs in your browser, on your device. Nothing is uploaded.
Step-by-step guide
Read the full guide: How AI Detectors Work — and why you should never trust one blindly.
Related free tools
QR Code Generator
Create QR codes for links, Wi-Fi and contact cards — download as PNG or SVG.
1. Choose what your QR code opens
   
Anyone who scans the code lands on this page — your menu, shop, booking or review page.
2. Your QR code
Free for business cards, menus, posters and packaging. Your details are turned into a QR code right here in your browser — nothing is uploaded.
ATS Resume Checker
See how your resume scores against applicant tracking systems — and against a real job description.
Your resume
   
Runs 100% in your browser. Your resume is never uploaded anywhere.
Your ATS score
Your score, checklist and missing keywords will appear here.
How to use it
  1. Paste your resume (or upload the PDF).
  2. Add the job description for the job you want — this unlocks keyword matching.
  3. Fix the red items first, then re-check your score.
More tools
Cover Letter Generator
Answer a few questions — get a polished, job-specific cover letter you can copy or download.
Your details
   
Your cover letter
How to use it
  1. Fill in the job, the company and your strongest skills.
  2. Pick a tone and generate — edit any line to sound like you.
  3. Copy it into your application, or download it as a file.
More tools
Salary to Hourly Calculator
Convert a yearly salary to an hourly rate — or an hourly wage to a salary. Updates as you type.
Your numbers
Full-time standard is 40 hours × 52 weeks = 2,080 hours a year. Adjust for part-time or unpaid time off.
The breakdown
Hourly$25.00
Daily (8 hours)$200.00
Weekly$1,000.00
Biweekly$2,000.00
Monthly$4,333.33
Annual$52,000.00
Gross pay before tax. To see your take-home pay, use the Paycheck Calculator.
How to use it
  1. Type a salary or an hourly rate — the other fills itself in.
  2. Set your real hours and weeks if they are not 40 × 52.
  3. Read the full breakdown — daily to yearly.
More tools
Paycheck Calculator
Estimate your US take-home pay — federal tax, Social Security, Medicare and your state's tax, for the 2024 or 2025 tax year.
Your pay
 
Estimate only — uses IRS federal brackets, standard deductions and state rates for the year you pick. It does not include 401(k), health insurance, local taxes or credits, and it is not tax advice.
Your paycheck
Your take-home pay and a full deduction breakdown will appear here.
How to use it
  1. Enter your salary and pick your state, filing status and tax year.
  2. Choose how often you are paid.
  3. See your take-home pay per paycheck and per year, with every deduction listed.
More tools
AI Humanizer AI
Paste stiff, robotic AI text — get back natural, readable writing that sounds like a person wrote it.
Your text
 
A smart in-browser editor: it swaps robotic phrases for plain words, adds natural contractions and varies the sentence rhythm. Your text never leaves your device.
Humanized text
How to use it
  1. Paste your AI draft on the left.
  2. Click Humanize — read the result and tweak any line you like.
  3. Copy it into your blog, email or assignment.
More tools
AI Detector AI
Check a piece of text for the patterns AI writing leaves behind — stock phrases, robotic rhythm and flat vocabulary.
Text to check
 
An honest estimate from writing patterns — no detector can prove who wrote a text. Use it as a guide, never as sole evidence.
Result
The AI-likelihood score and the signals behind it will appear here.
How to use it
  1. Paste 60+ words of the text.
  2. Run the check and read the score plus each signal.
  3. High score? Run the text through the AI Humanizer to make it read naturally.
More tools
AI Image Generator AI
Describe the picture you want — AI creates it in seconds. Logos, posters, product shots, illustrations.
Describe your image
Images are generated by the free Pollinations AI service — your prompt is sent to their servers to create the picture. Generation usually takes 10–30 seconds.
Tip: your exact words are used to make the picture — a clear English sentence with the subject, colours and place gives the closest match. The free service allows about one image per minute — if a limit notice appears instead of a picture, wait a minute and generate again.
Your image
Your generated image will appear here.
How to use it
  1. Describe the image in detail — subject, place, mood, colours.
  2. Pick a style and a shape, then generate.
  3. Download the image, or generate another version with a new random twist.
More tools
PDF Summarizer & Q&A AI
Upload a PDF — get a plain-English summary, the key points, and answers found inside the document.
Your document
The file is read right here in your browser — it is never uploaded to a server.
Ask the document
 
Results
Summaries and answers will appear here, with the page each point came from.
How to use it
  1. Upload any text-based PDF — a contract, report, manual or paper.
  2. Get an instant summary and the key topics.
  3. Ask questions in plain words — the best-matching passages come back with page numbers.
More tools
Edit PDF
Click any words already in your PDF and retype them — just like in Word. Your file never leaves your device.
1. Open your PDF
No file chosen yet.
The example is a small sample invoice. Open it, tap any line of words, and try changing it — that is exactly how your own PDF will work.
How to use it
  1. Open your PDF — or try the example document.
  2. Click the words you want to change and type the new ones.
  3. Download your edited PDF. Done.
More PDF tools
Merge PDF
Combine several PDF files into one — in the order you pick them.
Choose 2 or more PDFs
No files chosen yet.
How to use it
  1. Choose two or more PDF files, in order.
  2. Check the list shows them in the right order.
  3. Tap Merge — one combined PDF downloads.
More PDF tools
Split PDF
Keep only the pages you need and save them as a smaller, new PDF.
Choose your PDF
No file chosen yet.
How to use it
  1. Choose the PDF — the page count appears.
  2. Type the pages you want to keep.
  3. Download your new, smaller PDF.
More PDF tools
Compress PDF
Make a PDF file smaller so it fits an email limit or an upload box.
Choose your PDF
No file chosen yet.
How to use it
  1. Choose the PDF — its size appears.
  2. Pick Optimize for normal PDFs, Strong for scanned ones.
  3. Download the smaller file and check the saving.
More PDF tools
Rotate PDF
Scanned a page sideways? Turn every page the right way — permanently.
Choose your PDF
No file chosen yet.
How to use it
  1. Choose the PDF with sideways pages.
  2. Pick how far to turn them.
  3. Download the fixed PDF.
More PDF tools
Add Page Numbers
Stamp “Page 1, Page 2…” on a PDF — ready for printing or sharing.
Choose your PDF
No file chosen yet.
How to use it
  1. Choose the PDF.
  2. Pick where the numbers go and how they look.
  3. Download the numbered PDF.
More PDF tools
Image to PDF
Turn photos and pictures into one tidy PDF — arrange the pages in any order first.
Choose your images
No images chosen yet.
How to use it
  1. Choose two or more images (one works too).
  2. Arrange them with the ↑ ↓ buttons — that is the page order.
  3. Tap the button — one PDF downloads.
More converters
PDF to Image
Save every page of a PDF as a picture — JPG or PNG, your choice.
Choose your PDF
No file chosen yet.
How to use it
  1. Choose the PDF — every page is converted.
  2. Pick JPG or PNG and a size.
  3. Tap each picture to download it.
More converters
HEIC to JPG
iPhone photos come as HEIC files that many computers can't open. Turn them into JPGs that open anywhere.
Choose your HEIC photos
No files chosen yet.
How to use it
  1. Choose one or more HEIC photos.
  2. Tap Convert to JPG.
  3. Tap each JPG to download it.
More converters
HEIC to PDF
Put iPhone HEIC photos into one PDF — handy for documents, IDs and receipts shot on an iPhone.
Choose your HEIC photos
No files chosen yet.
How to use it
  1. Choose your HEIC photos, in page order.
  2. Tap Make one PDF.
  3. One PDF downloads — send it anywhere.
More converters
WebP to PNG
Websites save pictures as WebP — but many apps can't open them. Turn them into PNG files that open everywhere.
Choose your WebP pictures
No files chosen yet.
How to use it
  1. Choose one or more WebP pictures.
  2. Tap Convert to PNG.
  3. Tap each PNG to download it.
More converters
WebP to JPG
Turn WebP pictures from the web into JPG files — the format every phone, computer and app can open.
Choose your WebP pictures
No files chosen yet.
How to use it
  1. Choose one or more WebP pictures.
  2. Tap Convert to JPG.
  3. Tap each JPG to download it.
More converters
PNG to JPG
PNG photos can be huge. Convert them to JPG and the same picture takes up far less space.
Choose your PNG pictures
No files chosen yet.
How to use it
  1. Choose one or more PNG pictures.
  2. Tap Convert to JPG.
  3. Tap each JPG to download it.
More converters
JPG to PNG
Some apps and print tools ask for PNG. Convert your JPG or JPEG photos in one tap.
Choose your JPG photos
No files chosen yet.
How to use it
  1. Choose one or more JPG photos.
  2. Tap Convert to PNG.
  3. Tap each PNG to download it.
More converters
AVIF to JPG
AVIF is a new picture format many apps still can't open. Turn AVIF pictures into JPGs that work everywhere.
Choose your AVIF pictures
No files chosen yet.
How to use it
  1. Choose one or more AVIF pictures.
  2. Tap Convert to JPG.
  3. Tap each JPG to download it.
More converters
Image Compressor
Make a photo file smaller — for email, uploads, or an exact KB limit.
Choose your image
No image chosen yet.
How to use it
  1. Choose the photo.
  2. Set the quality — or type a target size in KB.
  3. Compress, check the saving, and download.
More converters
Resize Image
Make a picture exactly the size you need — by pixels or by percent.
Choose your image
No image chosen yet.
How to use it
  1. Choose the picture — its current size appears.
  2. Type a new width or tap a percent.
  3. Resize and download your new picture.
More converters
Image to Text (OCR)
Pull the words out of any photo or screenshot — free, no sign-up.
Choose your image
No image chosen yet.
How to use it
  1. Choose a photo or screenshot with words in it.
  2. Tap “Read the text” — it takes a few seconds.
  3. Copy the words, or download them as a text file.
More converters
Done!