Creator Tools
Aspect Ratio Calculator
Find an image or video aspect ratio and calculate a matching height at a new width.
Free browser toolFree Tools
Useful calculations and file tools that run in your browser. No account needed.
Music & Audio
Audio Duration Calculator
Estimate audio playing time from a file size and constant bitrate.
Free browser toolPhotos & Camera
Image Compressor
Compress a JPEG or PNG into a smaller JPEG, with a size and quality check before downloading.
Free browser toolPDF & Documents
Image to PDF
Bring your images together in one easy-to-share PDF. Your files never leave your browser.
Free browser toolHome & Utilities
Percentage Calculator
Calculate a percentage of an amount, a share of a total, or a percentage change.
Free browser toolPhotos & Camera
Photo Size Calculator
Calculate megapixels, approximate print dimensions, and uncompressed RGB data from pixel dimensions.
Free browser toolStorage & Cleaning
Storage Calculator
Estimate how many photos, recordings, or documents fit after keeping a storage reserve.
Free browser toolVideo
Video Size Calculator
Know the size before you hit send. Estimate a video file from its duration and bitrate.
Free browser tool