How to use Compress Image Online
- 1 Add one supported image.
- 2 Choose an output format and compression preset.
- 3 Enter an output filename and start compression.
- 4 Download and inspect the compressed image.
Compress Image Online
Reduce the file size of a supported image for websites, email, or sharing. Choose JPG, PNG, WEBP, or AVIF output and a Normal, Mid, or High preset. Stronger presets can reduce detail or dimensions, and changing formats can affect transparency, so review the downloaded image before replacing the original.
image
Drop an image to start
Load Source Image
Drag and drop your file here, or pick one from your device.
progress_activity
Uploading image...
0% • 0.00 MB/s
Preview
Awaiting uploadNo image loaded yet.
No image loaded yet.
Settings
Compression settings
Compression Preset
High compression is intentionally aggressive and can make images look rough, pixelated, or washed out.
Awaiting upload
Choosing image compression settings
Normal keeps the original dimensions and applies the gentlest reduction. Mid uses stronger compression and may soften fine detail. High is intentionally aggressive: it can reduce dimensions as well as image detail, so it is better suited to small previews or cases where file size matters more than fidelity.
JPG is usually appropriate for photographs but does not preserve transparency. PNG can preserve transparency and sharp edges, although photographs may remain comparatively large. WEBP and AVIF can produce smaller web images, but compatibility depends on the app or service where you plan to use the result.
Compress Image Online FAQ
Which files can I compress?
The compressor accepts one JPG, JPEG, PNG, WEBP, AVIF, GIF, BMP, TIFF, ICO, HEIC, or HEIF image at a time. The file must be readable and within the current upload limit.
Will the image dimensions stay the same?
Normal keeps the original dimensions. Mid and High may reduce very large images as part of their stronger compression profiles.
Will transparency be preserved?
PNG, WEBP, and AVIF can preserve transparency. JPG cannot, so transparent areas are flattened onto a white background.
Why might the result not be much smaller?
An image that is already optimized may offer little additional reduction. File size also depends on its dimensions, detail, source format, and chosen output format.