Free, fully private tools with no registration and no limits
A set of 167 free tools from Arteon, a Polish agency. Here you will find everything you need: from simple unit converters, through file and text formatting, to an email signature generator and a photo editor. All of it without creating an account, without limits and with full privacy of your data and files.
How do our tools work and what makes them different?
Your files stay on your own computer
Privacy is a basic thing for us, so we built every tool to calculate and process files on your own computer. All the work on your files and data happens on your machine, directly in your browser. We send nothing to a server, because everything is processed locally.You use them as many times as you want
Our tools have no limits, so you can use them as many times as you want. Everything is processed by your computer in real time, so the tools show the result straight away. You can, for example, run fifty photos through a converter one after another on a single day, and do exactly the same the next day. There are no restrictions and no limits.You open the tools without creating an account
Every tool is available right away. We have no premium version and no options hidden behind account registration — we simply do not run such a system, so you get all the features in the free version, without creating an account and without logging in. The version you see is complete from the first second and has every function.Tools and texts written for your country
We translate every element of a tool: field names, buttons, units and messages. Thanks to that you can comfortably use the tool in your own language. We write the texts under the tools separately for each country and adapt them to local realities and history. In the English version you will therefore find the standards, historical units and examples used in the United States and the United Kingdom, so an ordinary conversion can teach you something interesting as well.
64 tools
Images
Format conversion
AVIF to BMPSave AVIF files as uncompressed BMP that older software opens without add-ons.
AVIF to GIFConvert an AVIF image to GIF with transparency kept and a 256-colour palette.
AVIF to JPGConvert AVIF files to universal JPG. Compatible with every app and platform.
AVIF to PNGConvert AVIF files to lossless PNG. Preserve full quality and transparency.
AVIF to TIFFConvert AVIF files to TIFF format. Free, private, unlimited. Works in your browser.
AVIF to WebPConvert AVIF files to WebP. Wide compatibility at a small file size.
Base64 to ImageDecode Base64 strings to images. Preview and download in your browser. Free, no registration.
BMP to AVIFConvert uncompressed BMP files to ultra-compact AVIF.
BMP to GIFConvert uncompressed BMP files to lightweight GIF.
BMP to JPGConvert uncompressed BMP files to lightweight JPG. Our photo went from 17.2 MB to 1.52 MB.
BMP to PDFConvert BMP images to PDF documents. Combine multiple files into one PDF. Free, no registration.
BMP to PNGConvert BMP images to lossless PNG. Preserve quality at a smaller file size.
BMP to TIFFConvert BMP files to professional TIFF format for printing.
BMP to WebPTurn an uncompressed BMP into a lightweight WebP, with a quality slider from 60 to 95 percent.
GIF to AVIFConvert GIF first frame to static AVIF image with excellent compression.
GIF to JPGExport the first frame of a GIF as a JPG. Smaller file, faster page loads.
GIF to PNGExport the first frame of a GIF as a static PNG image. No quality loss.
GIF to WebPConvert first GIF frame to lightweight WebP. Smaller file, faster loading.
HEIC to AVIFConvert iPhone HEIC photos to modern AVIF format.
HEIC to JPGConvert iPhone HEIC photos to universal JPG. No signup, no server uploads.
HEIC to PDFConvert HEIC images to PDF documents. Combine multiple files into one PDF. Free, no registration.
HEIC to PNGConvert iPhone HEIC photos to lossless PNG. Full quality and transparency.
HEIC to TIFFConvert iPhone HEIC photos to professional TIFF format.
HEIC to WebPConvert iPhone HEIC photos to lightweight WebP. Smaller size, faster loading.
Image to Base64Encode images to Base64 format. Copy ready code for CSS or HTML. Free, no registration.
JPG to AVIFConvert JPG photos to modern AVIF. Up to 50% better compression thän JPG while maintaining quality.
JPG to BMPSave a JPG photo as an uncompressed 24-bit BMP that older software opens without add-ons.
JPG to GIFConvert JPG photos to GIF format. Perfect for simple graphics and icons.
JPG to PDFConvert JPG images to PDF documents. Combine multiple files into one PDF. Free, no registration.
JPG to PNGConvert JPG images to lossless PNG. Runs locally in your browser, unlimited files.
JPG to TIFFConvert JPG photos to lossless TIFF. For printing and archiving.
JPG to WebPConvert JPG photos to lightweight WebP. Cut image weight by up to 35%.
PDF to JPGConvert PDF pages to JPG images. High quality, no file limits. Free, no registration.
PDF to PNGConvert PDF pages to PNG images. High quality, no file limits. Free, no registration.
PDF to WebPConvert PDF pages to WebP images. High quality, no file limits. Free, no registration.
PNG to AVIFConvert PNG graphics to AVIF with transparency support. Significantly smaller files.
PNG to BMPSave a PNG file as an uncompressed 24-bit BMP that older software opens without add-ons.
PNG to GIFConvert PNG graphics to GIF. Ideal for simple icons and graphics.
PNG to JPGConvert PNG files to JPG in your browser. No file limits, no signup, no server uploads.
PNG to PDFConvert PNG images to PDF documents. Combine multiple files into one PDF. Free, no registration.
PNG to TIFFConvert PNG graphics to professional TIFF format.
PNG to WebPConvert PNG graphics to WebP. Smaller files while preserving transparency.
SVG to AVIFConvert vector SVG graphics to compact AVIF raster format.
SVG to GIFConvert vector SVG graphics to GIF raster format.
SVG to JPGConvert vector SVG files to compact JPG. Smaller file size, full compatibility.
SVG to PDFConvert SVG images to PDF documents. Combine multiple files into one PDF. Free, no registration.
SVG to PNGConvert vector SVG graphics to raster PNG. Ideal for documents and social media.
SVG to TIFFConvert vector SVG graphics to high-quality TIFF raster.
SVG to WebPConvert vector SVG to lightweight WebP. Ideal for websites and social media.
TIFF to AVIFConvert TIFF files to modern AVIF. Massive file size reduction.
TIFF to BMPTurn a TIFF file into an uncompressed 24-bit bitmap that older software opens without add-ons.
TIFF to JPGConvert TIFF files to compact JPG. Ideal for scans, documents and photo archives.
TIFF to PDFConvert TIFF images to PDF documents. Combine multiple files into one PDF. Free, no registration.
TIFF to PNGConvert TIFF files to lossless PNG. Preserve full quality of scans and graphics.
TIFF to WebPConvert TIFF files to lightweight WebP. Massive size reduction with quality preserved.
WebP to AVIFConvert WebP files to AVIF. Even better compression in a modern format.
WebP to BMPSave a WebP file as an uncompressed 24-bit BMP that older software opens without add-ons.
WebP to GIFConvert WebP images to GIF format for maximum compatibility.
WebP to JPGConvert WebP files to universally compatible JPG. Works in every app and platform.
WebP to PDFConvert WebP images to PDF documents. Combine multiple files into one PDF. Free, no registration.
WebP to PNGConvert WebP images to lossless PNG. Local conversion, nothing sent to any server.
WebP to TIFFConvert WebP images to professional TIFF for printing and archiving.
24 tools
Data
Format conversion
CSV to JSONConvert CSV to JSON format. Automatic parsing and formatting. Free, no registration.
JSON to CSVConvert JSON to CSV format. Automatic parsing and formatting. Free, no registration.
XML to JSONConvert XML to JSON format. Automatic parsing and formatting. Free, no registration.
JSON to XMLConvert JSON to XML format. Automatic parsing and formatting. Free, no registration.
YAML to JSONConvert YAML to JSON format. Automatic parsing and formatting. Free, no registration.
JSON to YAMLConvert JSON to YAML format. Automatic parsing and formatting. Free, no registration.
Markdown to HTMLConvert Markdown to HTML format. Automatic parsing and formatting. Free, no registration.
HTML to MarkdownConvert HTML to Markdown format. Automatic parsing and formatting. Free, no registration.
Data size
B to KBConvert bytes to kilobytes and back. 1 KB is 1,024 bytes, with a formula and a conversion table.
GB to KBConvert gigabytes to kilobytes and back. 1 GB is 1,048,576 KB, with a formula and a conversion table.
GB to MBConvert gigabytes to megabytes and back. 1 GB is 1,024 MB, with a formula and a conversion table.
GB to TBConvert gigabytes to terabytes and back. 1 TB is 1,024 GB, with a formula and a conversion table.
KB to BConvert kilobytes to bytes and back. 1 KB is 1,024 bytes, with a formula and a conversion table.
KB to GBConvert kilobytes to gigabytes and back. 1 GB is 1,048,576 KB, with a formula and a conversion table.
KB to MBConvert kilobytes to megabytes and back. 1 MB is 1,024 KB, with a formula and a conversion table.
KB to TBConvert kilobytes to terabytes and back. 1 TB is 1,073,741,824 KB, with a formula, Excel tip and table.
MB to GBConvert megabytes to gigabytes and back. 1 GB is 1,024 MB, with a formula and a conversion table.
MB to KBConvert megabytes to kilobytes and back. 1 MB is 1,024 KB, with a formula and a conversion table.
TB to GBConvert terabytes to gigabytes and back. 1 TB is 1,024 GB, with a formula and a conversion table.
TB to KBConvert terabytes to kilobytes and back. 1 TB is 1,073,741,824 KB, with a formula, Excel tip and table.
Numbers & time
Unix to dateConvert Unix timestamp to date and time. Essential tool for developers.
DEC to BINConvert decimal numbers to binary and vice versa. Instant results.
DEC to HEXConvert decimal numbers to hexadecimal and vice versa. Instant results.
Mbps to MB/sConvert megabits per second to megabytes per second and vice versa.
48 tools
Measurements
Length
cm to inConvert centimeters to inches. Height, clothing sizes, TV screen size, luggage dimensions.
cm to mConvert centimetres to metres. Ready-made table, everyday dimensions and what one centimetre means at scale 1:100.
cm to mmConvert centimetres to millimetres. Ready-made table, ring sizes for the UK and the US, and how to measure a finger.
ft to inConvert feet to inches. Height in feet and inches to total inches, height table, full conversion table.
ft to mConvert feet to meters. Height in feet and inches, aviation altitude, full conversion table.
ft to miConvert feet to statute and nautical miles. Ready-made table, cruising altitudes and the spreadsheet formula.
ft to mmConvert feet to millimetres. The feet-and-inches notation, sheet and container sizes, tables and the spreadsheet formula.
ft to ydConvert feet to yards and read the answer in whole yards with the feet left over. The tables cover field dimensions and the whole imperial system.
in to cmConvert inches to centimeters. TV size, height in metric, clothing sizes, luggage.
in to ftConvert inches to feet. Height in feet and inches, height table, full conversion table.
in to mmConvert inches to millimeters. Drill bits, bolts, socket wrenches, full inch fraction table.
km to mConvert kilometers to meters. Running distances, how to read a driver location sign, ready-made tables and a spreadsheet formula.
km to miConvert kilometers to miles. Running and marathon, speed (km/h to mph), trips to the US and UK.
m to cmConvert metres to centimetres. Ready-made table, roll-goods widths and every metric unit from millimetre to kilometre.
m to ftConvert meters to feet. Height in feet and inches, room and equipment sizes, full conversion table.
m to kmConvert meters to kilometers. Track and pool distances, ready-made tables and a spreadsheet formula.
m to miConvert meters to statute and nautical miles. Track distances, well-known heights, ready-made tables and a spreadsheet formula.
m to ydConvert meters to yards. Pitch dimensions, pool lengths, ready-made tables and a spreadsheet formula.
mi to ftConvert statute and nautical miles to feet. Ready-made table, race distances and the spreadsheet formula.
mi to kmConvert miles to kilometers. Running and marathon, speed limits (mph to km/h), travel, nautical miles.
mi to mConvert statute and nautical miles to meters. Quarter and half miles, race distances, ready-made tables and a spreadsheet formula.
mm to cmConvert millimetres to centimetres. Ready-made table, a which-is-bigger comparison and how to read a ruler.
mm to ftConvert millimetres to feet and to the feet-and-inches notation. Building dimensions, ready-made tables and the formula.
mm to inConvert millimeters to inches. Drill bits, bolts, material thickness, inch fraction table.
yd to ftConvert yards to feet by multiplying by three. The tables give yard fractions in feet and inches, plus the dimensions of an American football field.
yd to mConvert yards to meters. Sporting distances, fabric by the yard, ready-made tables and a spreadsheet formula.
Weight
g to kgConvert grams to kilograms. Shopping, parcels and nutrition labels.
g to mgConvert grams to milligrams. Decimal grams, every unit of mass and sodium in salt.
g to ozConvert grams to avoirdupois and troy ounces. Recipes, parcels and precious metals.
kg to gConvert kilograms to grams. Recipes, kitchen scales and nutrition labels.
kg to lbConvert kilograms to pounds. Body weight, gym loads, baggage limits and newborn weight.
kg to stConvert kilograms to stones and pounds in the British body-weight notation.
lb to kgConvert pounds to kilograms. Body weight from US apps, gym programs and baggage limits.
lb to ozConvert pounds to ounces. Baby weight in pounds and ounces, conversion table and the exact formula.
lb to tConvert pounds to tons. Short, long and metric tons side by side, plus the federal weight limits and vehicle classes.
mg to gConvert milligrams to grams. Label values, servings per gram and micrograms.
oz to gConvert ounces to grams. American pack sizes, boxing gloves and the troy ounce.
oz to lbConvert ounces to pounds. Result as pounds and ounces, baby weight and a conversion table.
st to kgConvert stones and pounds to kilograms, including the 11 st 4 lb notation.
t to lbConvert tons to pounds. Short, long and metric tons side by side, plus the weights allowed on foreign roads.
Volume
ml to ozConvert millilitres to fluid ounces. US or UK ounce switch, wine bottle, carry-on liquid limit.
oz to mlConvert fluid ounces to millilitres. US or UK ounce switch, US cup, kitchen recipes.
l to gallonsConvert litres to gallons. US or UK gallon switch, tank volumes, fuel economy and the oil barrel.
gallons to lConvert gallons to litres. US or UK gallon switch, fuel tanks, aquariums and drums.
ml to lConvert millilitres to litres. Container sizes, a 62-row table and a spreadsheet formula.
l to mlConvert litres to millilitres. Tank and bottle sizes, a 51-row table and a spreadsheet formula.
ml to cupsConvert millilitres to US cups from a recipe. Three cup sizes, an 83-row table and package capacities.
cups to mlConvert US cups to millilitres. The field takes fractions like 3/4, plus a 55-row table and tablespoon counts.
18 tools
Print & screen
Pixels & DPI
cm to pxConvert centimeters to pixels with DPI support. For graphics and print.
ft to pxConvert feet to pixels at any DPI. For booth graphics, banners and wall wraps.
in to pxConvert inches to pixels with DPI support. For graphics and prepress.
m to pxConvert meters to pixels at any DPI. For banners, billboards and large-format graphics.
mm to pxConvert millimeters to pixels with DPI support. For graphics and print.
px to cmConvert pixels to centimeters with DPI support. For graphics and print.
px to ftConvert pixels to feet at any DPI. Check the file covers the size before it goes out.
px to inConvert pixels to inches with DPI support. For print and screen.
px to mConvert pixels to meters at any DPI. See how large a print your file makes.
px to mmConvert pixels to millimeters with DPI support. For graphics and print.
Typographic units
pt to pxConvert typographic points to pixels and vice versa. For designers and developers.
px to ptConvert pixels to typographic points. For print, PDF page sizes and email signatures.
rem to pxConvert CSS rem units to pixels at any base font size.
px to remConvert pixels to CSS rem at any base font size.
em to pxConvert CSS em units to pixels and vice versa. Adjustable parent font size.
px to emConvert pixels to CSS em at any parent font size.
pc to pxConvert picas to pixels at any DPI. The selector covers all three pica systems.
px to pcConvert pixels to picas at any DPI. The result can also be written as 20p3.
3 tools
Text
Text analysis
7 tools
Colours
Palettes & contrast
Color contrast checkerCheck text and background contrast per WCAG 2.1 AA and AAA. Automatic color correction.
Image color extractorExtract dominant colors from a photo or logo. Ready HEX and RGB codes to copy.
Color palette generatorGenerate 9 palettes from one color: monochromatic, complementary, triadic and more. HEX codes.
Colour conversion
HEX to RGBTurn a HEX code into RGB channels in 0–255 or 0–1 notation, alpha included.
RGB to HEXTurn RGB values into a HEX code for CSS. Accepts commas, spaces and percentages.
RGB to CMYKTurn a screen RGB colour into the four CMYK inks before you send a file to press.
CMYK to RGBTurn a colour from a print file into RGB for a website and social posts.
2 tools
Business
Frequently asked questions about our tools
How much do the tools cost?
Nothing. All the tools are completely free.
Are my files sent to a server?
No. The tools calculate and process data entirely in the browser, on your own device.
Do I need an account?
No, we do not run account registration at all. You open the tool page and can start using it right away.
Is there a usage limit?
No. You can use every tool as many times as you want. There are no limits and no restrictions.
What languages are the tools available in?
In seven: Polish, English, German, Spanish, Portuguese, Italian and Czech. We translate both the buttons and the examples, so in every language we refer to the units and habits a reader from that market already knows.