Free online tools. Private by default.

Date Calculator

Count days, weekdays and exact ages between two dates.

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Grade Calculator

Combine weighted assessments and find the mark needed on remaining work.

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Image Compressor

Batch-compress, resize and convert images on your device.

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QR Code Generator

Create QR codes for websites, Wi-Fi, contacts, email and locations.

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Bill Splitter

Divide a bill, tax and tip equally across a group.

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Fuel Cost Calculator

Estimate fuel, tolls and the cost per passenger for a trip.

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Invoice Generator

Create itemized invoices with tax, discounts, logos and printable totals.

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Study Timer

Run adjustable focus and break sessions in the browser.

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Unit Converter

Convert length, mass and temperature values between common units.

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Shift Hours Calculator

Calculate overnight shifts, breaks, overtime and gross pay.

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Password Generator

Create a strong adjustable password locally in your browser.

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Percentage Calculator

Solve percentage, relative percentage and percentage-change questions.

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Text Case Converter

Change text to title case, sentence case, uppercase or lowercase.

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Reading Time Calculator

Estimate reading and spoken delivery time from your text.

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Loan Payment Calculator

Estimate monthly payments, total interest and payoff cost.

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Merge PDF

Combine PDF files in your chosen order without uploading them.

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Split PDF

Separate every PDF page or extract the ranges you need.

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Compress PDF

Reduce image-heavy PDF files with clear quality controls.

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JPG to PDF

Turn ordered JPG and PNG images into one PDF.

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PDF to JPG

Convert every PDF page into a downloadable JPG image.

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RRB Photo Resizer

Prepare RRB photos and signatures with editable pixel and KB limits.

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IBPS Photo & Signature Resizer

Resize IBPS photos, signatures, thumb impressions and declarations.

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SSC Signature Resizer

Fit an SSC signature to current dimension and file-size limits.

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UPSC Photo & Signature Resizer

Prepare UPSC photographs and signatures for current form limits.

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PAN Card Photo Resizer

Resize PAN photographs and signatures privately in the browser.

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Common App Activities Counter

Draft all 10 activities with live field-by-field character limits.

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FAFSA SAI Calculator

Explore a clearly labeled Student Aid Index planning estimate.

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UCAS Personal Statement Counter

Plan three UCAS answers inside their shared 4,000-character limit.

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NHS Annual Leave Calculator

Estimate Agenda for Change leave and public holidays in hours.

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Australia Casual Loading Calculator

Calculate a casual loaded rate and estimated weekly gross pay.

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Aspect Ratio Calculator

Find image ratios, calculate missing dimensions and preview crop or fit.

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Mortgage Recast Calculator

Estimate your payment after a lump-sum principal payment and recast.

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PMI Removal Calculator

Check mortgage LTV, principal needed for 80% and annual PMI cost.

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Refinance Break-Even Calculator

Compare two mortgage payments and recoverable closing costs.

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Mortgage Points Calculator

Calculate rate-buydown point cost, monthly savings and break-even.

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DIME Life Insurance Calculator

Estimate coverage needs from debt, income, mortgage and education.

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Mortgage Extra Payment Calculator

Estimate an early payoff date and interest savings from extra principal.

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Commercial Mortgage Calculator

Calculate commercial loan payments, DSCR and a balloon balance.

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Mortgage Comparison Calculator

Compare two mortgage payments, terms, fees and lifetime costs.

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Biweekly Mortgage Calculator

Estimate payoff time and interest savings from 26 half-payments.

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HELOC Payment Calculator

Compare HELOC draw-period and repayment-period payments.

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Use the result well.

Three practical guides for tasks where the method matters as much as the answer.