All Guides and Converters
Everything on this site in one place. The guides explain how image formats behave so you can choose well; the converters are single-purpose pages with the tool already set to the format you want. All of them run entirely in your browser, so your files never leave your device.
Not sure where to start? If you just want the job done, go straight to the converter. If you want to know which format to pick, start with the format guide.
Understanding image formats
- Image format guide: JPG vs PNG vs WebP vs AVIF. The overview: every format the converter handles, what each is best at, and a comparison table to settle arguments quickly.
- JPG vs PNG: when each format wins. The two formats most people choose between, including what compression artifacts actually look like and why transparency ends the debate.
- WebP explained: real savings and compatibility. How much smaller WebP genuinely is, where it works, where it does not, and how it compares to AVIF.
- What is HEIC, and why does my iPhone use it? Why Apple chose the format, what it gains you, and four ways to share HEIC photos with people who cannot open them.
- PNG transparency: alpha channels and white boxes. What transparency is inside a file, which formats keep it, and every common way it gets destroyed.
- Image size vs quality: what actually shrinks a file. Dimensions, compression, and format are three different levers. This is how to pull the right one first.
- Converting for email, web, print, and social. Destination by destination recommendations, with a quick reference table and the mistakes that get uploads rejected.
- Image metadata and EXIF. What your photos record about you, including location, and exactly what conversion strips out.
One-click converters
Each of these pages loads the converter with the output format already selected, so you can drop files in and go. They also explain the specific trade-offs of that conversion.
- HEIC to JPG. The most common conversion there is: iPhone photos into a format everything can open. Includes step-by-step instructions for iPhone, Mac, and Windows.
- HEIC to PNG. iPhone photos into lossless PNG, for editors and upload forms that demand it. Expect much larger files.
- WebP to JPG. For images saved from websites that then refuse to open in older software or upload forms.
- JPG to WebP. For putting photos on a website, typically 25 to 35 percent smaller at the same visual quality.
- PNG to JPG. For shrinking oversized screenshots and photos to fit an attachment or upload limit.
- JPG to PNG. For lossless storage before editing, or when a system will only accept PNG.
- AVIF to JPG. For the newest web format, which browsers display happily and a lot of other software cannot read yet.
- PNG to ICO favicon. Turns a square PNG into a multi-size .ico file, with the HTML needed to install it on your site.
The full converter
The home page carries the complete tool with every format available: convert to PNG, JPG, WebP, AVIF, or ICO, from those formats plus HEIC. It handles up to 50 images in one batch, shows the before and after size for each file, and offers a Download all button when you convert more than one. The quality slider appears for lossy output formats and is hidden for PNG and ICO, which have no quality to trade.
About the site
- Frequently asked questions. More than twenty answers covering formats, privacy, limits, batches, transparency, animation, metadata, and troubleshooting.
- About Image Converter. What the tool does, how the local processing works, and who builds it.
- Privacy policy. What is and is not collected, and why your images never reach a server.
Ready to convert? Open the image converter, drop in your files, pick a format, and download. Free, no account, nothing uploaded.