Image Conversion Tools
Eleven converters that change the container an image lives in. All of them decode and re-encode inside the tab, so nothing is uploaded and the work continues if you lose connectivity after the page has loaded. The useful thing to understand before picking one is that conversions fall into three different kinds. Some are lossless repackaging — PNG to WebP in lossless mode, or wrapping a picture in a PDF page — where every pixel survives. Some are lossy re-encodes, such as anything landing in JPG or default WebP, where the encoder discards detail to save bytes and cannot get it back. And two of them, the SVG converters, are not really format changes at all: they trace the bitmap into coloured vector paths, which is genuinely useful for a flat logo and misleading for a photograph. The direction you are converting also decides what is possible. Going from a lossy source to a lossless format locks in the damage already done rather than repairing it.
PNG to SVG
Convert your PNG images to vector SVG format.
JPG to SVG
Convert your JPG images to vector SVG format.
PNG to ICO
Convert your PNG images to ICO format.
JPG to ICO
Convert your JPG images to ICO format.
WebP to PNG
Convert your WebP images to standard PNG format.
PNG to WebP
Convert your PNG images to optimized WebP format.
JPG to WebP
Convert your JPG images to optimized WebP format.
AVIF to JPG
Convert your AVIF images to standard JPG format.
HEIC to PNG
Convert Apple HEIC photos to standard PNG format.
JPG to PNG
Convert JPG and JPEG images to PNG format in your browser.
PNG to PDF
Convert transparent PNG images into a high-quality PDF document.
Recommended Workflows in Image Conversion Tools
⚡ Making iPhone photos usable everywhere
Convert HEIC to JPG or PNG first, because Chrome and Firefox cannot decode HEIC at all -> then crop, resize or compress as the destination requires.
⚡ Cutting image weight on a web page
Convert photographs to WebP for a smaller file at the same visible quality -> keep a JPG fallback if you support older clients -> check the saving is real before replacing the originals.
⚡ Turning a flat logo into a scalable asset
Start from the cleanest, highest-contrast version of the mark you have -> trace it to SVG -> open the result and check the paths before using it, since tracing approximates curves rather than reconstructing them.
How to Choose the Right Tool
| If Your Task Is... | Recommended Tool | Action |
|---|---|---|
| An iPhone photo will not open on Windows or in Chrome | HEIC to JPG | Open Tool |
| A newer AVIF file is refused by an older program or upload form | AVIF to JPG | Open Tool |
| A WebP download needs to go somewhere that only takes PNG | WebP to PNG | Open Tool |
| Page weight matters and the destination accepts modern formats | JPG to WebP | Open Tool |
| A JPEG needs to be edited repeatedly without accumulating artefacts | JPG to PNG | Open Tool |
| A website or desktop app needs a favicon | PNG to ICO | Open Tool |
| A flat logo or line drawing has to scale to any size | PNG to SVG | Open Tool |
| An image has to be submitted as a PDF document | PNG to PDF | Open Tool |
Best Practices & Practical Tips
- ✓Convert once, from the best original you have. Every hop through a lossy format compounds the previous one, and a JPEG that has been to WebP and back is measurably worse than either single conversion.
- ✓Choose the target by what the destination requires, not by which format is newest. WebP and AVIF are genuinely better encoders, and are still rejected by plenty of upload forms, older printers and enterprise software.
- ✓For favicons, start from a square source at 256 pixels or larger. An ICO holds several resolutions and the small ones are generated by scaling down — starting small means the 256-pixel entry is an upscale.
- ✓Trace to SVG only from flat artwork with clear colour boundaries. Logos, icons and line drawings work; portraits and landscapes produce thousands of paths, a file larger than the original, and a posterised look.
- ✓Compare the output size against the input before you commit. Converting a small optimised JPEG to PNG routinely makes the file several times bigger, which is the opposite of what people expect.
Common Mistakes to Avoid
- ⚠️Converting JPG to PNG to 'improve quality'. PNG stores exactly what it is given, losslessly — including every artefact the JPEG already contained. It prevents further loss going forward; it repairs nothing.
- ⚠️Renaming a file extension instead of converting it. The bytes inside still describe the old format, so strict validators reject it and some viewers show nothing at all.
- ⚠️Expecting an SVG traced from a photograph to be editable line art. What comes out is a mosaic of filled polygons approximating regions of colour, not the shapes a designer would have drawn.
- ⚠️Using PNG for photographs on a web page. Lossless encoding of continuous tone produces files several times larger than a good JPEG or WebP at a quality difference nobody can see.
- ⚠️Assuming transparency survives every conversion. Moving a transparent PNG to JPG flattens the alpha channel onto a solid background — usually white or black — with no warning.
Frequently Asked Questions
Does converting JPG to PNG improve image quality?
No. The detail a JPEG discarded during its original encode is gone, and PNG cannot reconstruct it — it just records the damaged pixels exactly. Converting to PNG is worth doing when you are about to make several rounds of edits, because PNG will not add new artefacts each time you save. As a repair step it does nothing but enlarge the file.
Why can't my browser open HEIC files?
HEIC is the format Apple devices use by default, and its decoder is patent-encumbered. Safari can open it on Apple hardware; Chrome, Firefox and most Windows software cannot. Converting to JPG or PNG is usually the fastest route, and on the iPhone itself you can switch Camera settings to 'Most Compatible' so new photos are saved as JPEG in the first place.
Is WebP always smaller than JPG?
Usually, and by a meaningful margin on photographs — often 25 to 35 percent at visually equivalent quality. The exceptions are images that are already small or heavily optimised, and flat graphics where PNG's lossless encoding is efficient. The saving is worth measuring on your own files rather than assuming.
Are my files uploaded during conversion?
No. Every converter in this category decodes and re-encodes inside your browser using canvas and WebAssembly, so the image never leaves your device. That also means very large files are limited by your device's memory rather than by any upload limit, and the tools keep working offline once the page has loaded.
What does an ICO file contain, and which sizes do I need?
An ICO is a container holding the same icon at several pixel sizes, so the operating system or browser can pick the right one. For a website favicon, 16, 32 and 48 pixels cover browser tabs and bookmarks, while 256 is used by Windows for large icon views. Providing a large square source lets all of those be generated by scaling down, which is far cleaner than scaling up.
Can I convert a PDF back into an image?
Yes, but that is the reverse direction and lives in the PDF tools. PDF to JPG and PDF to PNG rasterise each page at a resolution you choose, which is the right approach for sharing a preview. If you need the text rather than a picture of it, PDF to Text extracts the embedded characters instead.