Convert Image Format Online

JPG to WebP. PNG to JPG. WebP to PNG. Whatever you need. Nothing uploaded, nothing stored. All in your browser.

No uploadGDPR safe15+ formatsHEIC supported

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Drop your image to convert

JPG, JFIF, PNG, WebP, GIF, BMP, TIFF, HEIC, HEIF, AVIF, ICO, SVG and more

Supports JPG, JFIF, PNG, WebP, GIF, BMP, TIFF, HEIC, HEIF, ICO and more. Everything stays in your browser.

How to convert an image

Drop your image

Drag in any JPG, PNG, WebP, GIF, BMP or TIFF. The file loads in your browser — nothing goes to a server.

Pick the output format

Choose what you want out the other side: JPG, PNG, WebP, BMP, TIFF or ICO. Pick JPG or WebP and a quality slider shows up so you can tune the file size.

Adjust quality (optional)

For JPG and WebP, set quality between 10-100. 90% is a safe default for most uses.

Convert and download

Hit Convert. Preview the output. Download it with the right file extension. That's it.

JPG vs PNG vs WebP: pick the right format

Format choice matters more than most people realise. Here's the short version.

JPGis the default for photographs. It uses lossy compression that works well with gradients and natural colour variation. The downside is that every save slightly degrades the image, and it doesn't support transparency.

PNGis the format for screenshots, logos, graphics with text, and anything that needs a transparent background. It's lossless, so the quality is perfect every time — but files are larger than JPG.

WebPdoes both better. Smaller than JPG for photos. Smaller than PNG for graphics. Supports transparency. Supported in every modern browser. If you're building a website and want to improve load times, converting your images to WebP is one of the highest-impact changes you can make.

Why convert without uploading?

Most online converters upload your image to their servers, convert it, then give you a download link. That's fine for public stock photos. But what about your personal photos, screenshots of private documents, or business assets you don't want on someone else's storage?

With this tool, conversion happens using the HTML5 Canvas API directly in your browser. Nothing is sent anywhere. No API call to a conversion service. No temporary file sitting on a server in some country you don't know about. Just your image, your browser, and the output file.

Which format for which job

What you have	Best format	Why
A photograph for a website	WebP, or JPG for older systems	Smallest files at the same visible quality
A screenshot or anything with text	PNG	Keeps letters and lines crisp with no artifacts
A logo with a transparent background	PNG or WebP	Both keep transparency, WebP is smaller
A favicon	ICO	Holds the 16, 32 and 48 pixel sizes browsers ask for
A file for print or an old publishing system	TIFF	Lossless and accepted almost everywhere in print
A file for a very old Windows program	BMP	Uncompressed and universally readable

Measured: converting back and forth costs quality

Lossy formats lose a little every time they are saved, and switching between two different lossy formats loses more than re-saving in one. We measured it on twelve of the illustrations used on this site. Higher numbers mean closer to the original, and above about 40 the difference is invisible.

Rounds	JPEG and WebP alternating	JPEG re-saved each time	PNG re-saved each time
1	38.21 dB	41.63 dB	Identical
2	35.83 dB	40.46 dB	Identical
3	34.48 dB	39.51 dB	Identical
5	32.79 dB	38.18 dB	Identical
10	30.67 dB	36.44 dB	Identical

The lesson is practical. Pick the format a picture needs and convert once. If an image will be edited many times, keep a PNG master and export a JPG or WebP copy at the end, rather than converting the same file back and forth.

What your browser can and cannot write

Browsers can natively save three image formats: JPEG, PNG and WebP. For BMP, TIFF and ICO, this converter builds the file itself, byte by byte, so what you download really is the format its name says. TIFF files are saved uncompressed, which is why they are large.

GIF is not offered as an output. A proper GIF needs the image reduced to a palette of 256 colours, which the browser does not do, and a tool that skips that step ends up saving a PNG with a .gif name. GIF files can still be converted from, to any of the formats above.

On the input side, TIFF is decoded right here in the page, so it works in Chrome and Firefox as well as Safari, and iPhone HEIC photos are decoded through a lossless step so the only compression is the one you choose.

Also useful

Compress Image →Resize Image →Crop Image →HEIC to JPG →Image Formats Explained →

FAQ

What formats can I convert to?+

JPG, PNG, WebP, BMP, TIFF and ICO. JPG and WebP let you set a quality level, PNG stays lossless, and ICO spits out the little 16, 32 and 48 pixel sizes you want for a favicon.

Why would I convert to WebP?+

WebP files are smaller than JPG at the same quality. Same visual result, 25-35% less file size. All modern browsers support it. It's genuinely the better format for web use.

Can I convert a PNG with transparency to JPG?+

Yes. The tool fills the transparent areas with white before converting to JPG, since JPG doesn't support transparency. If you need the transparency preserved, convert to WebP or keep it as PNG.

Is there quality loss when converting PNG to WebP?+

At high quality settings (90%+), the visual difference is negligible. PNG itself is lossless, so any lossy conversion will technically reduce quality slightly — but at 90% you won't see it.

Can I convert multiple images at once?+

Not currently — it's one image at a time. For a batch, the dedicated converters such as JPG to PNG or PNG to WebP take many files at once and download them as a ZIP.

Does converting affect image dimensions?+

No. The dimensions stay exactly the same. Only the format and quality change. Use the resize tool if you need to change dimensions.

Why is there no GIF output?+

A real GIF needs the image reduced to 256 colours first, which browsers do not do. Rather than save a PNG with a .gif name, this converter leaves GIF out. You can still convert from GIF.

Why is my TIFF file so large?+

The TIFF is saved uncompressed so every pixel is exact. That is normal for TIFF, and it is why print workflows accept it.

Can I open TIFF files in Chrome or Firefox?+

Here, yes. TIFF files are decoded inside the page, so they convert in any modern browser, not only Safari.

Does converting between formats reduce quality?+

Converting to PNG, BMP or TIFF does not. Converting to JPG or WebP applies lossy compression once. Switching back and forth between lossy formats is where losses add up.