Convert images online
Change an image from one format to another in seconds. Drop in a PNG, JPG or WebP, choose the output format, fine-tune the quality for lossy formats, and download the converted file. Everything happens in your browser, so your images are never uploaded.
How to use Image Converter
- 1
Add an image
Drag a PNG, JPG or WebP file into the drop area, or click to choose one from your device.
- 2
Choose the output format
Pick PNG, JPG or WebP as the format you want to convert to.
- 3
Set the quality
For JPG or WebP, use the quality slider to balance file size against sharpness. PNG is always lossless.
- 4
Convert and download
Click convert and save the new file. Your image is never uploaded anywhere.
Convert between the formats that matter
PNG, JPG and WebP cover almost every image you will meet on the web, and each one is good at something different. JPG is the long-standing choice for photographs, where its compression keeps files small at the cost of some invisible detail. PNG is built for graphics, screenshots, logos and anything that needs crisp edges or a transparent background. WebP is the modern all-rounder that often beats both, producing smaller files at similar quality and supporting transparency too. This converter moves your image freely between all three, so you can take a screenshot saved as a heavy PNG and turn it into a lightweight JPG, modernize an old photo into WebP, or convert a WebP someone sent you into a PNG that every program can open. Picking the right format for the job is one of the simplest ways to make images load faster and behave the way you expect, and doing the conversion takes only a couple of clicks here.
Control quality when converting to JPG or WebP
JPG and WebP are lossy formats, which means they trade a little visual fidelity for a much smaller file. How much they trade is up to you. When you convert to either format, a quality slider lets you choose the balance that fits your needs: keep it high for photos you want to look pristine, or lower it to squeeze the file down for a fast-loading web page or an email attachment. PNG, by contrast, is lossless, so converting to PNG always preserves every pixel exactly and the quality control simply does not apply. Being able to see and set the quality yourself means you are never stuck with a one-size-fits-all result — you decide whether file size or maximum sharpness matters more for this particular image, and you can try a different setting in seconds if the first one is not quite right.
Transparency handled correctly
Transparency is where a lot of converters quietly get things wrong. PNG and WebP can store transparent areas, but JPG cannot — it has no concept of an alpha channel. So when you convert a transparent PNG to JPG, those see-through regions have to become something solid. This converter fills them with a clean white background rather than leaving them black or producing strange fringing, which is what you almost always want for a logo or graphic that will sit on a page. Going the other way, converting to PNG or WebP keeps any transparency intact, so a graphic stays usable over any background. Understanding this one detail saves a lot of frustration, and the tool applies the sensible default automatically so your converted image looks right without any manual fixing. If you specifically need transparency in your final file, convert to PNG or WebP rather than JPG, and your see-through areas will be preserved exactly. Choosing the destination format with transparency in mind is the single most important decision when converting logos, icons and other graphics that need to float cleanly over a coloured background.
Private and instant — no uploads
Your images can be personal or confidential: family photos, screenshots that contain private information, unreleased product shots, client work under NDA. Sending them to a server just to change the file format is an unnecessary risk, and it is slow because you have to wait for the upload and the download. In1 converts everything locally using your browser's own image pipeline, so not a single byte leaves your device. There is no upload bar, no queue and no storage — the conversion happens the moment you click, even on a large image, and the result is ready to download immediately. Because there is no server doing the work, there is also no file-size cap imposed by a plan, no watermark stamped on the output, and no account to create. It is the convenience of an online tool with the privacy and speed of a desktop app.
Who converts images and why
The reasons are everywhere once you start looking. Web developers and site owners convert PNG screenshots to JPG or WebP to shrink page weight and improve loading scores. Online sellers convert product photos into the format a marketplace requires. People convert WebP images — which some older programs still refuse to open — into universally supported PNG or JPG so they can edit or print them. Designers export transparent assets as PNG for layering, then to WebP for the web. Office workers convert screenshots to slip under an email attachment limit, and students convert images to meet the format rules of an upload form. Whatever the destination, the need is the same: get the picture into the right format, at the right size, without losing control of quality — and do it quickly, privately and for free. A good rule of thumb is to reach for JPG when the image is a photograph, PNG when it has sharp edges or transparency, and WebP when you want the smallest file for the web without giving up much quality. Keeping those three habits in mind turns format conversion from a chore into a quick, deliberate choice that makes your images behave exactly the way each situation demands.
Higher limits, batch processing and an API are on the way. Want early access?