How to compress an image
- Add your images. Drag and drop JPG, PNG or WebP files onto the box above, or tap it to choose photos from your phone or computer. You can add several at once.
- Pick how to compress. Choose Target size and enter the maximum file size in KB, for example 50 or 100, or choose Quality and set the slider yourself.
- Choose a format (optional). Leave it on Same as original in most cases. Pick JPG if a website only accepts JPG files.
- Press Compress. Each image is processed in a second or two. A progress bar shows which image is being worked on.
- Check and download. Drag the before-and-after slider to compare, then download images one by one or all together as a ZIP file.
Features
- Compress to a target size. Enter an exact limit such as 20KB, 50KB, 100KB or 500KB and get the highest quality that fits. There's no guessing with sliders.
- Quality mode for full control, with a live readout of the percentage you have chosen.
- Before-and-after preview with a comparison slider, so you can see exactly what changed.
- File sizes shown before and after for every image, with the percentage saved and a total for the whole batch.
- Batch compression with a single Download all button that bundles the results into a ZIP.
- Resize while you compress. Cap the longest side at 1920, 1280 or another common width – for large phone photos this saves far more than lowering quality.
- Paste screenshots with Ctrl+V (⌘+V on a Mac) instead of saving them to a file first, and change any setting afterwards to compress the same batch again.
- JPG, PNG, WebP, AVIF and BMP input, with output as JPG, WebP or PNG. Transparent PNGs keep their transparency when saved as WebP.
- Smart fallback. If an image is already smaller than your target, or re-compressing would make it bigger, the original is kept rather than made worse.
Why use Fileora's image compressor
Most image compressors upload your photos to a remote server and send back a smaller copy. Fileora does the work inside your browser instead, so your pictures never leave your device. That matters when the photo is a passport scan, a signature, a child's picture or a document you'd rather not share.
It also makes the tool quicker. There is no upload wait and no queue, and large batches don't count against a daily limit. The tool is completely free, adds no watermark and doesn't ask you to create an account. It works the same on Android phones, iPhones, tablets and desktop computers, so you can compress a photo straight from your camera roll just before you submit a form.
If you need to change an image's dimensions rather than its file size, use an image resizer first and then compress the result. To send photos as a single document, compress them here and then merge them into a PDF or compress an existing PDF.
Tips for the smallest file without visible quality loss
Photos of people and landscapes compress extremely well: 70–80% quality usually cuts the size by two thirds or more with no visible change. Screenshots with sharp text and flat colours are the opposite, because JPG compression can make text look fuzzy. For those, WebP gives a much better result at the same size. There are dedicated pages to compress JPG photos and to compress PNG graphics with their transparency kept.
If your target is very small, such as 20KB for an exam form, the tool will also reduce the image's dimensions to reach it. That keeps faces and text clearer than cranking quality down to the minimum. Always check the preview before submitting an important photo. The pages to compress an image to 20KB and to 50KB come preset for those limits, with tips for form photos and signatures.