File format guides
Step-by-step guides on file formats, image optimization and private sharing. Each one links to a tool you can use while you read.
iPhone photo formats explained: HEIC vs JPG, which camera setting to use, and how to convert HEIC so your photos open on any device.
How to optimize images for the web: pick the format, resize, then compress, so pages load fast and images still look sharp.
How to move data between JSON, CSV and spreadsheets without losing columns, dates or leading zeros.
How to share photos privately: remove GPS location and EXIF data, check what the picture shows, and send a clean copy instead of the original.
Vector vs raster images explained: why some stay sharp at any size, when to rasterize an SVG to PNG, and why going back is hard.
Open CR2, CR3, NEF, ARW, DNG, RAF, ORF, RW2 and PEF files for free: what a RAW file is, how to get a JPG out of it, and which free apps can develop it.
How ZIP, RAR and 7z differ in compression, compatibility, encryption and licensing, and which one to pick when you send, store or receive files.
The difference between SRT and WebVTT subtitle files, which one each platform wants, and three ways to add subtitles to a video.