What Online Image Editor does
Online Image Editor is a lightweight editor for the adjustments people need most often. Open a picture, drag to crop it, resize, rotate or flip it, fine-tune brightness, contrast and colour with sliders, and export the result as PNG, JPG or WebP. Everything happens in your browser, so there is nothing to install and the picture is not uploaded.
How to edit an image
- Add a photo or graphic.
- Crop: drag on the image to mark the area to keep, then apply.
- Resize: enter a width or height in pixels. Keep the aspect ratio locked to avoid stretching.
- Rotate or flip as needed.
- Move the sliders to adjust brightness, contrast, saturation and the other filters.
- Choose the format and quality, then download.
What each adjustment is for
| Adjustment | Use it to |
|---|---|
| Crop | Remove distracting edges and improve composition |
| Resize | Reach the pixel dimensions a website or form asks for |
| Rotate / flip | Correct sideways photos or mirror a selfie |
| Brightness | Rescue a photo that is too dark or too light |
| Contrast | Make flat, grey-looking pictures clearer — very helpful for photographed documents |
| Saturation | Strengthen or tone down colours |
| Greyscale and similar filters | Create black-and-white or styled versions |
Use cases
- Preparing a profile picture or product photo.
- Cleaning up a photographed document: crop to the page, raise brightness and contrast so the paper looks white.
- Rotating and trimming a scan before turning it into a PDF with JPG to PDF.
- Making a quick black-and-white version of a photo.
Choosing an export format
| Format | Best for | Note |
|---|---|---|
| JPG | Photographs | Small files; no transparency |
| PNG | Graphics, screenshots, images with transparency | Lossless; larger files |
| WebP | Websites | Small files with good quality; not accepted by every form |
JPG and WebP use the quality you choose. Around 80–90% is a good balance; lower values make smaller files with more visible artefacts.
Tips
- Crop before you resize, so the final dimensions apply to the part you are keeping.
- Make small adjustments. A slight increase in brightness and contrast usually looks more natural than a large one.
- Use “Reset all” to return to the original picture if you go too far.
- Save as PNG if you plan to edit the picture again later; each JPG save loses a little quality.
When a specialised tool is quicker
- An exact file size in KB: Compress Image to KB.
- A fixed shape such as a square or 16:9: Image Cropper.
- Only new dimensions: Image Resizer.
- A photo or signature for an application form: Photo & Signature Resizer.
- Removing the background: Background Remover.
Privacy
The image is edited in your browser on your own device. It is not uploaded to our server.