Free online tools. Fast. Private.
Free Online File Converters & Tools
Convert and compress files, calculate, and convert units and currencies in seconds. File tools run inside your browser – your files never leave your device.
Image ConverterImage CompressorImage ResizerImage to PDFMerge PDFSplit PDFVideo to MP3Unit Converter
📂
Drop files here
Maximum file size: 50 MB
–
All tools
Free tools that work instantly in your browser.
Image ConverterConvert images between PNG, JPG and WebP online for free.Image CompressorReduce image file size online without visible quality loss.Image ResizerResize images to any width online.Image to PDFCombine JPG and PNG images into a single PDF online.Merge PDFCombine multiple PDF files into one document online.Split PDFExtract a page range from any PDF online.Video to MP3 ConverterConvert video to MP3 online for free.MP4 to MP3 ConverterConvert MP4 to MP3 online for free.Unit ConverterConvert length, weight, temperature, data size and time units instantly.
Free calculators
Quick calculators for money, prices and percentages. They run in your browser.
Percentage CalculatorFree percentage calculator: find X% of a number, what percent one number is of another, and percentage increase or decrease.Loan EMI CalculatorFree loan EMI calculator. Enter the amount, interest rate and term to see your monthly payment, total interest and a yearly repayment schedule.Simple Interest CalculatorFree simple interest calculator. Enter principal, yearly rate and time to get the interest earned and the total amount.Compound Interest CalculatorFree compound interest calculator with optional monthly deposits. See your final balance, interest earned and year-by-year growth.Discount CalculatorFree discount calculator. Enter the original price and discount percentage to see the sale price, savings and an optional final price with tax.Sales Tax CalculatorFree sales tax calculator. Add tax to a price or remove tax from a tax-inclusive total. Works for sales tax, VAT and GST.Profit Margin CalculatorFree profit margin calculator. Find profit, gross margin and markup from cost and revenue, or work out the selling price for a target margin.Currency ConverterConvert 300+ currencies and crypto like USDT with daily rates.
Unit converters
Weight, volume, length, area and speed conversions with formulas and quick tables. See all tools.
Weight converters
Kilograms to Pounds ConverterConvert kilograms to pounds online for free.Pounds to Kilograms ConverterConvert pounds to kilograms online for free.Metric Tons to Kilograms ConverterConvert metric tons to kilograms online for free.Kilograms to Metric Tons ConverterConvert kilograms to metric tons online for free.Grams to Ounces ConverterConvert grams to ounces online for free.Ounces to Grams ConverterConvert ounces to grams online for free.Kilograms to Stone ConverterConvert kilograms to stone online for free.
Volume converters
Liters to US Gallons ConverterConvert liters to us gallons online for free.US Gallons to Liters ConverterConvert us gallons to liters online for free.Milliliters to Fluid Ounces ConverterConvert milliliters to fluid ounces online for free.Cups to Milliliters ConverterConvert cups to milliliters online for free.
Length converters
Centimeters to Inches ConverterConvert centimeters to inches online for free.Inches to Centimeters ConverterConvert inches to centimeters online for free.Feet to Meters ConverterConvert feet to meters online for free.Meters to Feet ConverterConvert meters to feet online for free.Kilometers to Miles ConverterConvert kilometers to miles online for free.Miles to Kilometers ConverterConvert miles to kilometers online for free.
Area and speed converters
Square Feet to Square Meters ConverterConvert square feet to square meters online for free.Acres to Hectares ConverterConvert acres to hectares online for free.Kilometers per Hour to Miles per Hour ConverterConvert kilometers per hour to miles per hour online for free.Miles per Hour to Kilometers per Hour ConverterConvert miles per hour to kilometers per hour online for free.
Popular conversions
One-click image format converters.
WebP to PNG ConverterConvert WebP to PNG online for free.WebP to JPG ConverterConvert WebP to JPG online for free.PNG to JPG ConverterConvert PNG to JPG online for free.JPG to PNG ConverterConvert JPG to PNG online for free.
Why FormatVolt
🔒 Private by designFiles are processed locally. No uploads, no accounts.
⚡ Instant resultsNo queues or server round-trips.
🌍 Works everywhereWindows, Mac, Linux, Android and iOS in any modern browser.
FAQ
Is FormatVolt free?
Yes. All tools are free with no sign-up, limits or watermarks.
Are my files uploaded?
No. Files are processed in your browser and never leave your device.
Which tools are available?
Image conversion, compression and resizing, image to PDF, PDF merge and split, and a unit converter.