Free online tools
Calculate, convert and compare. Without the hassle.
Fast, free and easy-to-use online tools.
Try “MP4 to MP3”, “JPG to PDF” or “download time”
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Documents
JPG to PDF
Turn multiple JPG images into one PDF, reorder them and configure every page.
Documents
PDF to JPG
Convert every PDF page to a JPG image and download them together or individually.
Documents
Merge PDF
Combine several PDF files in your chosen order without uploading them to a server.
Images
Resize image
Change width and height, use percentages or presets and keep the aspect ratio of multiple images.
Images
Compress image
Reduce JPG, PNG and WebP file size with quality control and an approximate target.
Studies
Grade calculator
Calculate current average, evaluated weight, remaining weight and estimated final grade with unlimited assessments.
Images
WebP to JPG
Convert multiple WebP to JPG images directly in your browser.
Technology
Time calculator
Add and subtract any number of durations in hours, minutes and seconds.
Energy
Electricity cost
Calculate the energy use and cost of any electrical appliance.
Tool categories
Everything you need, neatly organized
Fast. Private. No sign-up.
Open a tool, use it and download the result. File tools process your data directly on your device.