Image Converter

The most common reason is size. A screenshot or export saved as PNG can be several megabytes, and the same image as a quality 85 JPG is often a tenth of that. Also the fix when an upload form refuses PNG.

Watch out: JPG has no transparency. Anything transparent gets filled with the background colour you pick, so a logo on a transparent backdrop becomes a logo on a solid square.

Useful when a tool or platform demands PNG, or when you are about to edit the image and want a lossless working copy that will not degrade further with each save.

Watch out: This does not restore quality. JPG compression artefacts are already baked into the pixels, and PNG preserves them perfectly while making the file considerably larger. It also does not add transparency.

The standard win for page speed. Converting your photographs to WEBP usually cuts 25 to 35 percent off the file size at a quality level nobody notices, which shows up directly in Largest Contentful Paint.

Watch out: You are re-encoding something already lossy, so keep the quality slider high, around 85 to 90. Going low here stacks a second round of compression on top of the first.

The usual reason is that some other program will not open the WEBP you just downloaded. PNG opens everywhere and keeps the transparency the WEBP had.

Watch out: The result will be much larger, and if the WEBP was lossy the conversion cannot undo that. It gives you compatibility, not extra quality.

For sending images into older software, print workflows, or any upload field that only lists JPG. JPG remains the most universally accepted image format there is.

Watch out: Transparency is lost, and you are compressing lossy-on-lossy. Keep quality at 90 or above unless file size genuinely matters more than fidelity.

AVIF is excellent on the web and awkward everywhere else. Converting to JPG is what makes the file usable in older editors, office software and print submissions.

Watch out: Your browser has to be able to decode AVIF to read the file. That means Chrome 85 or later, Firefox 93 or later, or Safari 16.4 or later. On anything older the file will not open here.

The right choice when the AVIF has transparency you need to keep, or when you want a lossless copy to edit rather than another lossy generation.

Watch out: Expect the PNG to be dramatically bigger. AVIF is one of the most efficient formats in use and PNG is one of the least, so a ten to twenty times size increase is normal.

Keeps the transparency PNG gave you while cutting the file size substantially. For logos and UI assets on a website this is usually the single easiest performance win available.

Watch out: For flat graphics and text, push the quality slider to 95 or higher. WEBP handles photographs beautifully at 80, but sharp edges and small text need more headroom.

The classic favicon.ico case. ICO is a container, so a single file can carry the 16, 32 and 48 pixel versions Windows and older browsers ask for.

Watch out: Start from a square source that still reads at 16 pixels. Detailed logos turn to mush at that size, so simplify to a single letter or mark. If you want the full favicon set with the HTML tags, use the dedicated favicon generator instead.

Needed whenever something will not accept a vector: social previews, email clients, marketplace listings, most print submission forms and older office software.

Watch out: You are choosing a fixed resolution at this point, so set the resize width to what you actually need, and go larger than you think. Note that an SVG referencing external fonts or images will render without them, because the browser rasterises the file in isolation.

TIFF is what scanners, archives and print workflows produce. PNG is the lossless format that everything else can actually open, so it is the natural destination.

Watch out: Browsers cannot decode TIFF, with Safari the only exception, so a browser-based converter like this one cannot read the file. On a Mac, Preview exports TIFF to PNG directly. On Windows, Paint or IrfanView will do it.

The usual goal is size. A scanned TIFF can easily run to 50MB, and the same page as a JPG is a small fraction of that while still being perfectly readable.

Watch out: Same limitation as TIFF to PNG. No browser except Safari can decode TIFF, so this needs a desktop application. Once you have a PNG or JPG, you can bring it back here for anything else.

People usually want this to get a logo that scales cleanly to any size, most often because a printer or a sign maker asked for vector artwork.

Watch out: This is not a format conversion, it is image tracing, and it is a genuinely different operation. A tracer guesses at shapes, which works passably for flat two-colour logos and produces unusable results for photographs. If you need a real vector logo, redrawing it in vector software is the honest answer.

When not to use PNG

Photographs. A photo saved as PNG is often five to ten times larger than the same photo as a good quality JPG, with no visible benefit.

When not to use JPG

Screenshots, text and sharp edges, which pick up visible fringing. Also anything that needs transparency, since JPG has no alpha channel at all.

When not to use WEBP

Files you hand to a client, a print shop, or an older desktop application. Support in browsers is universal now, but support in software is patchier.

When not to use AVIF

Anything that has to open in older software. Encoding is also slow, and most browsers cannot create AVIF files even though they can display them.

When not to use GIF

Photographs and anything colourful. GIF is capped at 256 colours per frame, so photos come out banded, and animated WEBP or a short MP4 beats it on size.

When not to use BMP

Anything on the web. BMP is essentially uncompressed, so files are enormous for no quality gain over PNG.

When not to use ICO

General image use. It is an icon container, not a photo format, and nothing outside icons expects it.

Photos on your website

WEBP first, AVIF if you serve modern browsers only and can generate it. Both beat JPG substantially on size, which feeds straight into your Largest Contentful Paint score.

Logos and UI graphics

PNG when you need certainty, WEBP when you want the same transparency at a fraction of the size. Keep the quality slider at 95 or above so edges stay crisp.

Screenshots

PNG. Text and interface edges are exactly what JPG handles worst, and the fringing around small type is visible even at high quality settings.

Email and attachments

JPG. It is the format every mail client, phone and ancient desktop application will open without complaint, and inbox size limits reward the smaller file.

Favicons and app icons

ICO for favicon.ico and Windows icons, PNG for everything modern. One ICO holds several sizes, which is why the format has outlived every attempt to replace it.

Print and handoff

PNG or the original file untouched. Print workflows want maximum fidelity, and a lossy re-encode to save a few megabytes is a false economy when it goes on paper.

Nothing is uploaded

Decoding and encoding both happen in your browser through canvas. Your files stay in the tab, which is what makes this usable for client work, identity documents and unreleased artwork.

Batch conversion

Up to ten files at a time, up to 50MB each, with mixed input formats in the same batch. Progress is shown per batch and every file keeps its original name.

Quality and resize control

A real quality slider for the lossy formats rather than a fixed preset, plus an optional max width and height that preserves the aspect ratio.

Transparency handled properly

When the target format has no alpha channel, you choose the colour that fills transparent pixels instead of getting an unexpected black or white box.

ZIP download

Grab the whole converted batch as one archive rather than clicking through ten separate save dialogs.

Honest about failures

If your browser cannot write a format it says so, rather than silently handing you PNG data under a different extension. Unreadable inputs get a message explaining why.