Convert JPG, PNG, WEBP, AVIF, HEIC, BMP, TIFF, GIF, SVG & ICO. Bulk conversion with ZIP download.
Convert images between eleven formats — including modern ones like AVIF and Apple’s HEIC — without installing anything. Batch conversion is supported, and every file is processed on your own device.
What this tool does
The Image Converter decodes your file and re-encodes it in a different format. It handles JPG, PNG, WEBP, AVIF, BMP, TIFF, GIF, SVG and ICO as outputs, and additionally reads HEIC — the format iPhones use by default and which most Windows software and upload portals cannot open.
You can drop in dozens of files at once, convert them all with the same settings, and download them individually or as a single ZIP.
How to use it
Drag your images onto the upload area, or click to browse your device.
Choose the output format from the dropdown.
If the format is lossy (JPG, WEBP, AVIF), adjust the quality slider — 80 to 85 is right for most photographs.
Click Convert, then download each file or grab the whole batch as a ZIP.
Which format should you choose?
Situation
Convert to
Why
Exam or government form upload
JPG
The only format those portals reliably accept
Photograph for a website
AVIF or WEBP
25–50% smaller than JPG at the same quality
Screenshot or diagram
PNG
Lossless, no ringing around text
Logo that needs transparency
PNG
JPG cannot store an alpha channel
iPhone photo that will not open
JPG
Universal compatibility
Favicon or Windows icon
ICO
Multi-resolution container format
Archival or further editing
PNG or TIFF
Lossless — no degradation on re-save
If you want the reasoning behind these, the image formats guide works through each format properly.
Things worth knowing
Converting cannot restore lost quality. Turning a JPG into a PNG preserves the image as it currently is, artifacts included — it does not repair it.
AVIF output falls back to WEBP on browsers that can display AVIF but not encode it. You will get a working file rather than a silent failure.
GIF export uses a single-frame encoder with a 3-3-2 palette. It is well suited to flat graphics and poor for photographs.
Transparency is lost when converting to JPG. Transparent areas become solid white.
EXIF metadata is stripped, which removes GPS coordinates and camera details you may not want to publish.
Frequently asked questions
Is the image converter free?
Yes, entirely — no sign-up, no watermark and no cap on how many images you convert or how large they are.
Are my images uploaded to a server?
No. Conversion runs in your browser using the Canvas API and, for HEIC, a WebAssembly decoder. The files never leave your device. You can verify this by watching the Network tab in your browser’s developer tools while converting.
Can it convert HEIC photos from my iPhone?
Yes. Drop in a .heic file and convert it to JPG or PNG that opens on any device. See the HEIC guide for why iPhones use the format and how to stop them.
How many files can I convert at once?
There is no hard limit — the constraint is your device’s memory. A few hundred ordinary photos is comfortable on a modern machine; very large TIFFs will slow things down sooner.
Why is my converted file bigger than the original?
Usually because you converted a lossy format to a lossless one — JPG to PNG, or HEIC to PNG. Lossless formats store every pixel exactly and are much larger for photographic content. That is expected, not an error.
Does it work offline?
Yes, once the page has loaded. Switch to airplane mode and the converter keeps working, which is a straightforward way to confirm nothing is being uploaded.
Guides that use this tool
How to Optimise Images for a Faster Website — Images are usually the heaviest thing on a web page. How to pick the right format and dimensions, how many sizes you actually need, and which loading attributes matter.
Why In-Browser File Tools Are Safer Than Upload-Based Converters — What actually happens when you upload a file to an online converter, how client-side processing differs technically, and how to verify for yourself that a tool is not transmitting your data.
DPI, Pixels and Print Size Explained — Why DPI does not exist inside a digital image, how to convert between pixels and physical size, what resolution you need for print, and why upscaling cannot add detail.
Why Your iPhone Photos Are HEIC and How to Fix It — What HEIC is, why Apple uses it, why Windows and government portals reject it, how to convert it to JPG, and how to stop your iPhone producing it in the first place.