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.

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.

Why is my PNG so huge, and will converting help?

If it holds a photograph, converting helps dramatically. Our 1382.4 KB reference photo-PNG measured 69.8 KB as AVIF and 74.2 KB as JPG: twenty times smaller. PNG spends bytes guaranteeing pixel-exactness photographs don't need. Graphics and screenshots, by contrast, often belong in PNG.

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.

How many PNGs can I convert at once?

50 per batch, 30 MB each, one ZIP out with filenames preserved. We state that plainly because almost nobody in this business publishes their number. It is free, with no signup, no watermark, and a 300-image daily allowance. Each row shows its measured output size.

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.

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.

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.

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.

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 6 full batches, and more anonymous volume than the big server-side tools publish.

What happens to my files?

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.

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PNG Converter

Convert PNG both ways: shrink heavy PNGs into JPG, WebP, or AVIF, or turn other formats into PNG when you need one. Up to 50 at a time, no signup.

Output format

– / –

Drop images or browse

JPEG · PNG · WEBP · AVIF · HEIC · max 30 MB

HEIC

PNG

JPEG

AVIF

WEBP

Advanced settings

QualityAuto

SmallerAutoBetter

Auto tunes each image.

Max file size

A hard cap for “under 50 KB” portals.

Max resolution

Empty side keeps the ratio. Never enlarges.

Keep EXIF metadataOff by default. We strip camera and GPS data.

One real file, before and after

PNG, 1.3 MB — A real result from this exact operation: 1.3 MB in, 68 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’.

AVIF, 68 KB — A real result from this exact operation: 1.3 MB in, 68 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 router

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	1382.4 KB	AVIF	69.8 KB (−95%)	photos never belonged in PNG
A photo for a form or email	1382.4 KB	JPG (Auto)	74.2 KB (−95%)	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 staying PNG	2683.7 KB	Compress PNG instead	394.8 KB (−85%)	palette quantization, no format change

Our published test set: a photograph and a flat-colour graphic, measured through the same engine that will process your files.

How these numbers are measured: every byte count on this page is the size of the actual encoded file our engine produced from the named source image. Those are the same bytes you would download, not an estimate or a best case. Rerun any of them yourself: drop your own file into the tool above and the meter reports your real result.

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.

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.

Questions, answered

Short answers specific to this page. The tool above settles most of them in a second.

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.
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.
Why is my PNG so huge, and will converting help?: If it holds a photograph, converting helps dramatically. Our 1382.4 KB reference photo-PNG measured 69.8 KB as AVIF and 74.2 KB as JPG: twenty times smaller. PNG spends bytes guaranteeing pixel-exactness photographs don't need. Graphics and screenshots, by contrast, often belong in PNG.
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.
How many PNGs can I convert at once?: 50 per batch, 30 MB each, one ZIP out with filenames preserved. We state that plainly because almost nobody in this business publishes their number. It is free, with no signup, no watermark, and a 300-image daily allowance. Each row shows its measured output size.
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.
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.
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.
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.
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 6 full batches, and more anonymous volume than the big server-side tools publish.
What happens to my files?: 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.

Ready when your file is

Drop it in above. The meter reports the exact saving before you download anything.

Compress now