About this tool
Image Converter changes the file type of a picture. You might have a PNG screenshot that a form refuses, a WebP image saved from a website that an older app can’t open, or a folder of photos you want in a smaller modern format for your own site. Pick a format, press one button, and each image is saved again in that format at the same pixel size.
It is useful for anyone who has hit the message “file type not supported”: people uploading documents to government or job portals, sellers listing products on marketplaces, bloggers and web developers, and anyone moving pictures between a phone and a computer.
Most converter websites take your file onto their servers, convert it there and hand it back. This one does the work inside your browser, so your pictures stay on your phone or computer the whole time. There is no account, no watermark, no queue and no daily cap.
How to use Image Converter
- Tap “Choose files”, drag images onto the box, or paste one with ⌘V / Ctrl+V. You can add up to 50.
- Under “Convert to”, pick JPG, PNG, WebP or AVIF.
- For JPG, WebP or AVIF, set the Quality slider (90 is the default). For JPG, also choose the colour that see-through areas become.
- Press the convert button, for example “Convert 12 images to WebP”. Each row then shows the old size and the new size.
- Download each image from its row. With several images, you can also save them all together as one ZIP file.
ExampleA folder of PNG screenshots called report-1.png, report-2.png and so on comes back as report-1.webp, report-2.webp, usually much smaller, with the same pixel size and the same names.
Features
- Reads JPG, PNG, HEIC, WebP, AVIF, TIFF (first page), GIF, BMP, SVG and ICO, up to 50 at a time.
- Saves as JPG, PNG, WebP or AVIF. Formats your browser can’t create are greyed out; hover over one to see why.
- Quality slider from 40 to 100 for JPG, WebP and AVIF. PNG is lossless, so it has no slider.
- Pick the background colour for transparent areas when saving as JPG (white unless you change it).
- Before and after file size on every row. Tap a row for a big preview: before and after, the result alone, or actual pixels.
- Files keep their names with the new ending: holiday.png becomes holiday.jpg.
- Conversion runs in a background worker, so the page doesn’t freeze during a big batch.
Tips and good to know
- Turning a JPG into a PNG won’t bring back detail that was already lost. The picture looks the same, but the file usually gets bigger.
- For a website, WebP is a safe choice: it is widely supported and usually much smaller than JPG.
- AVIF makes the smallest files but takes longer to create. Chrome is the most reliable browser for saving AVIF.
- Hidden camera details (EXIF), including the location many phones record, are not copied into the new file. Good for privacy, but the date taken goes too.
- An animated GIF becomes a still picture of its first frame.
- SVGs are drawn at least 2048 pixels on the long side, so they come out sharp. Camera RAW files (CR2, NEF, ARW, DNG) and PDFs can’t be opened here.
- Safari can only draw about 16 megapixels. A bigger picture is shrunk just enough to fit, and its row says so. Chrome and Firefox go bigger.
Frequently asked questions
Are my images uploaded anywhere?
No. Your browser converts the images on your own device. They are never sent to AroraTools or anyone else, and they are cleared when you close the page.
Is it free? Are there any limits?
Yes, it is free, with no sign-up, no watermark and no daily limit. You can convert up to 50 images at a time; for more, download the batch and add the next lot.
Does it work on iPhone and Android?
Yes, in Safari, Chrome, Firefox and Edge on phones, tablets and computers. The page needs the internet to open, but the converting happens on your device.
Which format should I choose?
JPG works almost everywhere and suits photos, but has no transparency. PNG keeps every pixel exactly and keeps transparency, so it is best for screenshots and logos, though photos become large. WebP is usually much smaller than JPG and keeps transparency. AVIF is smaller still, but slower to make and not accepted everywhere yet.
Can I convert an iPhone HEIC photo to JPG?
Yes, in any modern browser, not just Safari. If your browser can’t read HEIC itself, a decoder (about 2 MB) downloads once, with the first one. Then it converts like any other picture.
What happens to a transparent background?
PNG, WebP and AVIF keep it. JPG can’t store transparency, so see-through areas are filled with a colour you pick, which is white unless you change it.
Why can’t I choose WebP or AVIF?
Your browser can’t create that format, so the option is greyed out. Safari can’t save WebP, and some browsers can’t save AVIF. Try Chrome on a computer or Android phone.
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