HexaMedia

HexaMedia — Free Online PDF & Image Optimizer

Convert Image Format

Switch your images between JPEG, PNG and WebP, entirely in your browser.

Drop images here

or click to browse — JPEG, PNG, WebP, GIF…

How Format Conversion Works Here

Converting a format in HexaMedia decodes your image locally and redraws it onto an in-browser canvas, then exports it again as a new file in the format you chose. JPEG, PNG and WebP are the three formats this tool can write. You can also drop in a GIF or BMP file to convert it into one of those three, since browsers can decode more image formats than they can encode.

Two input formats need a caveat. TIFF appears in the file picker, but Chrome and Firefox cannot decode TIFF through the browser API this tool relies on, so TIFF files will typically fail to convert. And if you convert an animated GIF, only its first frame carries over: browsers decode a single static frame from an image file this way, so the result is a still image, never an animation.

How to Convert an Image

1. Add Your Image

Drop a JPEG, PNG, WebP, GIF or BMP file, or click to browse.

2. Choose the Output Format

Click JPEG, PNG or WebP. A quality slider appears for JPEG and WebP, since PNG is lossless.

3. Download the Converted File

Click Optimize images, then download. The file extension matches your chosen format.

JPEG vs PNG vs WebP

JPEG

Small files for photographs, but lossy and with no transparency support. A good default for photos that don't need a transparent background.

PNG

Lossless and supports transparency, which makes it the safer choice for screenshots, logos, or graphics with sharp edges and flat colors, at the cost of larger files.

WebP

Supports both lossy and lossless compression plus transparency, usually producing smaller files than JPEG or PNG at a similar visual quality. The main reason to avoid it is compatibility with older software that only expects JPEG or PNG.

Converting to JPEG? Watch your transparency

JPEG has no transparency channel. Any transparent area in a source PNG or WebP is exported over solid black, not white, since this tool draws onto a blank canvas without filling a background color first. Convert to PNG or WebP instead if you need to keep transparency.

Frequently Asked Questions

What happens to transparent areas when I convert to JPEG?
They turn solid black. JPEG has no transparency channel, and this tool does not fill a white background before exporting, so any transparent pixel in your PNG or WebP source becomes black once converted. Choose PNG or WebP as the output instead if you need to keep transparency.
Can I convert a TIFF file?
Not reliably. TIFF appears as an accepted file type, but Chrome and Firefox cannot decode TIFF images through the browser API this tool uses, so TIFF conversions typically fail. Convert TIFF files with dedicated desktop software instead.
Does converting a GIF keep the animation?
No. Only the first frame of an animated GIF is used. Browsers decode a single static frame from an image file this way, so the converted result is always a still image.
Which format should I pick for a website?
WebP usually gives the smallest file at a given visual quality and supports transparency, but check that your target audience's browsers support it. JPEG remains the safest universal choice for photos, and PNG for graphics that need transparency.
Does conversion reduce image quality?
Converting to PNG is lossless. Converting to JPEG or WebP applies the quality percentage set above the Crop panel, so quality loss depends entirely on that setting, not on the conversion itself.
Can I convert several images to the same format in one batch?
Yes. Drop multiple files, choose one output format, and click Optimize images. Every file converts to that format and can be downloaded individually or all at once.