OmniImage
Format Convert
Convert JPG, PNG, WebP, BMP, and TIFF files individually or in a batch.
IMAGE COMPRESSOR & CONVERTER FOR MAC
Every image task.
One clear workspace.
Compress, convert, resize, crop, create PDFs, export SVGs, and clean metadata—all locally on your Mac.
For macOS 12 or later · No account · No ads
Format Convert
Choose a format. OmniImage handles the details.
Local processing
Drop images here
JPG, PNG, WebP, BMP, TIFF and more
Output formatPNG ▾
Save toChoose when processing
ReadyOriginals stay unchanged
THE TOOLS YOU ACTUALLY NEED
Simple by default. Capable when it matters.
Each workspace focuses on one familiar task, with clear choices and sensible defaults.
Image Compress
Make files smaller, then compare the result before deciding what to keep.
Resize
Resize mixed image sizes proportionally by scale, longest edge, width, or height.
Batch Crop
Apply one target aspect ratio across images with different dimensions.
PDF Tools
Combine images into a PDF or export PDF pages as separate images.
SVG Tools
Preview SVG safely and export crisp PNG files at the scale you need.
Privacy Cleaner
Remove GPS, camera, and capture metadata before sharing an image.
Watermark
Add a consistent text watermark to one image or a complete batch.
Batch Rename
Give exported files clean, predictable names while processing them.
SEE THE RESULT
Much smaller. Still clear.
Drag the divider to compare a real OmniImage compression result before saving.
1.9 MBOriginal
110 KBCompressed
−94.5%Smaller
Compressed · 110 KBOriginal · 1.9 MBPRACTICAL GUIDES
Finish common image tasks in minutes.
Each guide covers the exact steps, practical format choices, and details worth checking.
GUIDE
Compress images without uploading
Compress JPG, PNG, WebP, BMP, and TIFF images locally on Mac, compare the result, and keep the version that looks right.
Read guide → GUIDEConvert PNG to JPG in a batch
Convert one or many PNG files to JPG locally on Mac, with clear format choices and automatic handling for transparency.
Read guide → GUIDECombine images into one PDF
Arrange JPG, PNG, and other images in the right order and turn them into a shareable PDF on your Mac.
Read guide → GUIDEExport PDF pages as images
Turn each page of a PDF into a separate image locally on Mac for slides, previews, documents, or sharing.
Read guide →Processed locally on your Mac.
Your images, PDFs, and SVG files are never uploaded to a server.