A PNG converter turns images into PNG, the lossless format that keeps transparency, or heavy PNGs into lighter JPG, WebP or AVIF files. Up to 10 at a time, no signup. Part of the image converter.
Output format
– / –
Drop images or browse
JPEG · PNG · WEBP · AVIF · HEIC · up to 50 at once · max 30 MB each
A real result from this exact operation: 1.7 MB in, 45.9 KB out. Drop your own file and the meter reports yours. The left half is a preview render; the byte counts are the real files’.
Two directions, one honest PNG converter
Leaving PNG is usually about bytes: a photograph trapped in a lossless container, a logo that should be WebP, a screenshot bloating a docs site. Arriving at PNG is usually about editing: you need a lossless, alpha-capable file that Photoshop, Figma and Office all open. The tool above serves both. Each pair below has its own page with measured numbers. The one wrong answer we will warn you about either way is putting transparency into JPG.
The decision table, keyed by what your PNG actually is
Your PNG is…
Original
Best exit
Result
Why
A photograph
4096.3 KB
AVIF
123.9 KB (−97%)
photos never belonged in PNG
A photo for a form or email
4096.3 KB
JPG (Auto)
273.9 KB (−93%)
universal compatibility
A transparent logo / flat art
7.4 KB
AVIF or WebP
0.8–1.3 KB
alpha survives. JPG would flatten it
A screenshot that has to stay PNG
1121.1 KB
Compress PNG instead
213.1 KB (−81%)
palette quantization, no format change
Our published test set: our reference photo saved as PNG, a flat-colour graphic we drew and a screenshot of our pricing page, measured through the same engine that will process your files.
Every byte count is the size of the actual file our engine produced from the named source, the same bytes you would download, not an estimate. The reference photo is one of our own photographs, an iguana on a branch, and the camera photo is a real one too. Drop your own file into the tool above to rerun any of them. How we measure names the sources and the settings.
PNG maker, image to PNG converter, transparent PNG: what each one means here
A PNG maker is this page: drop a JPG, a WebP, an AVIF or an iPhone HEIC and it writes a PNG. Convert image to PNG and image to PNG converter are the same job under other names. Transparent PNG is where people are usually disappointed: a PNG can hold transparency, but converting a photo into one does not create it, because a JPG or a HEIC has no alpha channel to carry. What survives is what the source had. Cut the background out in an editor and the PNG keeps it; convert a photo and the PNG keeps the photo’s own background, every pixel of it at quality 100, at a larger size than the original.
Transparency routing: where alpha lives and dies
The single most important fact on this page: WebP and AVIF keep PNG's transparency. JPG destroys it by definition.PNG to WebP and PNG to AVIF convert cutouts, logos and soft shadows intact. Verify against the checkerboard in the compare view. PNG to JPG flattens transparent regions onto a background. We preview it before download, so the white-box surprise never happens here. Route by whether the transparency matters, then by where the file is going. To change only the size and keep the PNG, the PNG resizer and crop PNG keep the transparency and the format.
When not to convert at all
It is a design master or source file?
Keep the PNG untouched and convert the copies you ship. Lossless sources are irreplaceable.
It just needs to be smaller, staying PNG?
Use Compress PNG: palette quantization with alpha intact, no format change, often −60% or better.
Pixel-art or UI specs where every pixel is data?
Lossy exits can soften deliberate pixels. Verify at 100% first, or stay lossless.
All PNG conversions
Every route in and out runs on the same engine and the same rules. Each card is its own page.
Short answers specific to this page. The tool above settles most of them in a second.
Q:Which format should I convert my PNG to?
Decide by content, not fashion. Photographs → AVIF or JPG (order-of-magnitude savings). Transparent logos and cutouts → AVIF or WebP, never JPG (alpha survives). Screenshots → WebP. Files for forms and old software → JPG. Our decision table has the measured numbers behind each answer.
Q:How do I convert an image TO PNG?
Drop a JPG, WebP, AVIF or HEIC into the converter and pick PNG. At quality 100 you get bit-exact truecolour from the decoded source. At Auto you get a palette-optimised file. Transparency survives either way. PNG is the right destination for editing, and rarely the right one for delivery.
Q:Why is my PNG so huge, and will converting help?
If it holds a photograph, converting helps dramatically. Our reference photo, saved as PNG, weighs 4096.3 KB. It measured 123.9 KB as AVIF and 273.9 KB as JPG: 33 and 15 times smaller. PNG spends bytes guaranteeing pixel-exactness photographs don't need. Graphics and screenshots, by contrast, often belong in PNG.
Q:Does converting PNG lose the transparency?
It depends on the exit. WebP and AVIF carry full alpha. Your transparency converts intact, and you can verify it against the checkerboard in the compare view. JPG has no alpha at all: transparent regions flatten onto white. The result preview shows it before you download rather than springing it on you.
Q:How many PNGs can I convert at once?
10 conversions a batch, 30 MB each, one ZIP out with filenames preserved. A PNG that stays PNG compresses 50 at a time. We state both numbers plainly because almost nobody in this business publishes theirs. It is free, with no signup, no watermark, and a 300-image daily allowance. Each row shows its measured output size.
Q:Is PNG to JPG safe for upload forms?
Yes, it is the classic move for portals that whitelist JPG under a KB cap. Set Max file size to the portal's number and convert. You satisfy the format rule and the size rule in one pass. The engine searches quality for the best fit under the cap and never goes over it.
Q:What is the difference between PNG-8 and PNG-24?
Palette size. PNG-8 stores up to 256 chosen colours (small files), while PNG-24/32 store full truecolour (big files). Our PNG outputs are palette-optimised where content allows. If you are converting to shrink a PNG that stays a PNG, Compress PNG is the sharper tool.
Q:Can I convert PNG to AVIF and still support old browsers?
Yes. Serve AVIF with a fallback in a picture element. The PNG to AVIF page includes a copy-pasteable snippet. AVIF support is ~95% in 2026, so the fallback is insurance for the last few percent, not the main path.
Q:Does converting change the image dimensions?
Never silently. Conversion preserves pixel dimensions exactly. If you also need resizing (a 4000-pixel PNG going on the web rarely needs to stay 4000 pixels), the resize tool combines dimension changes with format conversion in one pass.
Q:Is this really free, without a watermark?
Yes. Free, no watermark, no signup, with a 300-image daily allowance counted live beside the tool. That is 30 full batches of 10 conversions, and more anonymous volume than the big server-side tools publish.
Q:What happens to my files in the PNG converter?
We keep nothing. We process your files and wipe them automatically, never archive them, never use them for anything else. We strip metadata from outputs by default, and no account is required.
