Compress images to 50KB, 100KB, 200KB, 500KB, 1MB, or a custom size. Process JPEG, PNG, and WebP files privately in your browser.
Processing stays in your browser.
Set one target for up to 10 images. Each file is processed independently and never uploaded.
Practical guide
This target-size image compressor is built for forms that specify a maximum upload size instead of a quality percentage. Pick a common limit such as 50KB, 100KB, or 200KB, or enter a custom target for each image in the batch.
Select a preset and RealScaner searches for a suitable image quality before reducing dimensions. Each JPEG, PNG, or WebP is processed independently, so a batch can meet the same portal or application limit without being uploaded.
Auto format uses JPEG for opaque photos and WebP for transparent images when the browser supports it. You can choose JPEG, WebP, or PNG yourself, although lossless PNG files may not reach very small target sizes.
Images that are already below the target are returned unchanged. If the requested size cannot be reached above the minimum quality and dimensions, the tool provides the smallest valid result and labels the limitation instead of claiming success.
Practical answers about privacy, formats, and output quality.
No. Image decoding, resizing, encoding, and ZIP creation happen in your browser. RealScaner does not upload the files.
No. Some images cannot reach a very small target without going below the minimum quality or dimensions. RealScaner keeps the smallest result and labels it clearly.
Auto uses JPEG for opaque images. Images with transparency use WebP when the browser can encode it, otherwise they use PNG.
PNG is lossless, so it does not have a quality control like JPEG or WebP. RealScaner can reduce its dimensions but cannot always make it very small.
Processed images are decoded and exported through a browser canvas, which strips common metadata and normalizes visible orientation. Files already under target are returned unchanged.
One result downloads as an image. Two or more results are placed in a ZIP file created locally in your browser.
RealScaner rejects animated images, SVG, HEIC, empty files, deceptive MIME types, unreadable files, and batches beyond 10 images.