Only edit images you own or have permission to use. Everything happens on your device, so nothing is uploaded.
How it works
Four steps, no account, no upload, and no cropping unless you ask for it.
- Add your imagesDrop in one picture or a whole batch. Your browser opens them directly.
- Pick a formatJPG, PNG or WebP, with a quality setting or a target file size.
- Keep or change the sizeKeep the original dimensions, or pick a ready size such as an Instagram post or a YouTube thumbnail.
- DownloadSave one image or the whole batch as a ZIP, with clear file names.
Which format should you choose?
A quick guide, so your files stay sharp and small.
| Format | Best for | Transparency | Typical size |
|---|---|---|---|
| JPG | Photos, thumbnails, social posts | No | Small |
| PNG | Logos, screenshots, sharp text, transparency | Yes | Large |
| WebP | Websites and blogs; smallest files at the same quality | Yes | Smallest |
What actually differs between the formats
Format arguments get religious quickly. The practical differences come down to four properties, and once you know which ones your image needs, the choice makes itself.
| Format | Transparency | Compression | Best for | Watch out for |
|---|---|---|---|---|
| JPEG | No | Lossy | Photographs, anything with smooth gradients | Quality degrades a little every time you re-save |
| PNG | Yes | Lossless | Logos, screenshots, text, anything with hard edges | Large files for photographs |
| WebP | Yes | Either | The web, where it usually beats both on size | Older software may not open it |
Lossy and lossless, in one paragraph
A lossless format stores exactly what you gave it: save and re-save a PNG a hundred times and the hundredth is identical to the first. A lossy format throws away detail it judges you will not miss, which is how a photograph becomes a tenth of the size with no visible difference — but the loss is permanent and it accumulates. Convert a JPEG to PNG and you do not get the lost detail back; you get a lossless copy of the already-degraded image, in a bigger file.
The practical rule: convert to a lossy format once, at the end, when you know the image is finished. Work in a lossless format until then.
Transparency is the decision that cannot be undone
JPEG has no concept of a transparent pixel. Convert a logo with a transparent background to JPEG and that background becomes solid — usually white, sometimes black, and there is no getting it back afterwards. If your image has transparency and you need to keep it, your options are PNG or WebP, and that single fact settles most logo and graphic conversions.
Which to pick, by what you are doing
- Putting photographs on a website — WebP. Typically 25–35% smaller than an equivalent JPEG, and every current browser reads it.
- Sending to someone who will open it in anything — JPEG for photos, PNG for graphics. Neither will ever fail to open.
- A logo, icon or anything with transparency — PNG, or WebP if it is for the web.
- Screenshots of text or interfaces — PNG. JPEG compression makes small text fringe and look dirty in a way that is very hard to unsee.
- Uploading somewhere with a file size limit — JPEG or WebP, and drop the quality setting before you drop the dimensions. Quality 80 is usually indistinguishable from 100 at a fraction of the size.
- Printing — whatever your printer asks for, at full resolution, and do not compress it hard to save space.
Converting does not repair
Worth saying plainly, because it is a common hope: converting a small, blurry or heavily compressed image to a better format does not improve it. The damage is already in the pixels. A PNG made from a ruined JPEG is a faithful, larger copy of a ruined image. Go back to the best original you have.
Everything happens on your device
Conversion runs in your own browser. Your files are never uploaded, so there is no waiting on a queue, no size cap set by us and no copy of your images on anyone's server — see the privacy policy. You can convert a batch and download the lot as a ZIP in one go.
If you also need different dimensions, the image resizer does that, and the watermark remover is here if there is a mark to clear first.
Questions
Need to resize for social media? Use the image resizer.
Is this image converter free?
Yes. No sign-up, no watermark on your images and no limit.
Which formats can I convert to?
JPG, PNG and WebP. Most common inputs are supported, including HEIC photos your browser can open.
Are my images uploaded?
No. Your browser converts them, so files never leave your device.
How do I make an image smaller in KB?
Turn on "Target size" and choose a limit. The tool lowers quality just enough to fit under it.
Should I use JPG, PNG or WebP?
JPG for photos, PNG for logos, screenshots and sharp text, WebP for the smallest files on websites.
Can I keep the original size?
Yes. Choose "Keep original size" and only the format and quality change.
Can I convert many images at once?
Yes. Add a batch and download them all as a ZIP.
Does converting reduce quality?
PNG is lossless. JPG and WebP use the quality setting, so 80–90% usually looks identical at a much smaller size.