Reduce file size
Adjust JPEG or WebP quality and immediately compare the output size against the original image.
Compress, resize, convert, rotate and flip one image or a full batch in one browser-based workflow.
Source image
Drop image(s) here or choose files
JPG, PNG or WebP · up to 10 images · Batch ZIP supported · 10 MB each · maximum 25 megapixels / 8192 px per side.
Files stay on this device. Resource Guard: 10 MB/file · 25 MP · 8192 px/side · 10 images · 50 MB batch.
Processing image
ORIGINAL PREVIEW
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Batch processing
Apply the current settings to every image
Process up to 10 JPG, PNG or WebP files locally, then package the results into one ZIP download.
Queue
0 images
Source size
0 B
Status
Ready
Five tools, one pipeline
Use one image or a batch, then combine only the operations you need in each export.
Change dimensions
Enter exact width and height values or use quick percentage presets while keeping the original aspect ratio.
Export another format
Save the processed result as JPG, PNG or WebP without sending the source image to the PRBLEM server.
Turn the image
Rotate 90° right, 180° or 90° left while keeping the operation inside the same export pipeline.
Mirror the image
Flip horizontally or vertically, or enable both directions together before downloading the final file.
Private by design
Images are decoded, transformed and re-encoded in your browser using Canvas. Files are not uploaded to PRBLEM. Batch ZIP files are also assembled locally. Processed exports omit common EXIF metadata because a new image is rendered from pixels.
Supported formats
Input: JPG / JPEG, PNG and WebP. Output: JPG, PNG and WebP. WebP output is automatically disabled if the current browser cannot create it.
Does PRBLEM upload or store my image?
No. Image processing is performed in the browser. The page does not send the selected image to the server.
Why can a PNG become larger after processing?
PNG is a lossless format and Canvas does not expose a PNG quality slider. For smaller photographic files, WebP or JPG will usually produce a better result.
Can I combine resize, convert, rotate and flip?
Yes. All selected settings form one pipeline, so the final download can be compressed, resized, converted, rotated and flipped in a single export.
How does batch processing work?
Select two or more images, adjust the editor once, then use Process & Download ZIP. The browser processes the queue sequentially and creates the ZIP locally without uploading the source files.
What are the Resource Guard limits?
Each source file is limited to 10 MB, 25 megapixels and 8192 pixels per side. A batch can contain up to 10 images and 50 MB of source files, with a 120 MB generated-output ceiling before ZIP creation. These limits protect browser memory and responsiveness; the images are still processed locally rather than on the PRBLEM server.