Image Converter — HEIC, PNG, JPG, WebP
Convert HEIC, PNG, JPG, WebP & ICO — even to an exact KB size.
Convert images between JPG, PNG, WebP and ICO, and turn iPhone HEIC photos into JPG — all in your browser. Toolzo also works as an image to JPG converter to a target size, so you can get a 20KB, 100KB or 200KB JPG for online forms. Batch-convert several files at once and download them together as a ZIP.
How it works
- Add one or more images (JPG, PNG, WebP, HEIC, SVG…).
- Choose the output format.
- Set quality for JPG/WebP if needed.
- Press Process and download the converted file(s).
Frequently asked questions
Can it convert iPhone HEIC photos to JPG?
Yes — HEIC/HEIF images are decoded in your browser and converted to JPG, PNG or WebP.
Can I convert PNG to JPG at a set KB?
Convert to JPG here, then use Compress Image to KB to hit an exact size like 100KB.
What is the ICO option for?
It creates a .ico favicon file (up to 256px) from your image.
Does it work on mobile (Android & iPhone)?
Yes — it runs in any modern mobile browser, no app to install, and works the same on Android and iPhone.
Is it safe and private?
Yes. Your file is processed in your browser and never uploaded to any server, so nothing is stored or shared.
Do I need to sign up or pay?
No — it's completely free, with no signup, no watermark and no limits.
How to check a file's size
- Windows: right-click the file → Properties → see Size (and "Size on disk").
- Mac: click the file and press Cmd + I (Get Info) → see Size.
- Android: open Files / Gallery → long-press the image → Details / Info.
- iPhone: open the Files app → long-press the file → Info.
1 MB = 1024 KB. If a form asks for a photo "under 50 KB", it means 50 kilobytes — use the tool above to hit that exact size.