What this tool does
Compress JPG, PNG, and WebP images in your browser. Reduce file size, preview results, and download optimized images.
- Compress a JPG photo before uploading it to a website.
- Convert a PNG screenshot to WebP for a smaller web asset.
- Compare size reduction before downloading the optimized file.
Image Compressor
Auto mode tries safe browser exports and keeps the original when every compressed candidate is larger. PNG screenshots and already optimized WebP files may not shrink.
When this tool is a good fit
Image Compressor helps when you need smaller image files with selected quality and format settings from one or more images that are already cropped and sized appropriately. It is most useful for reducing images for faster pages, email attachments, product listings, CMS uploads, and social assets. The notes below focus on the settings that matter, the checks worth doing before you export, and the limits that tend to cause mistakes.
- Takes one or more images that are already cropped and sized appropriately.
- Lets you adjust format, quality, metadata stripping, and whether to process one file or a batch.
- Calls out what to review: visual artifacts, file size savings, transparency, dimensions, and whether small text remains legible.
- Produces smaller image files with selected quality and format settings.
- Fits common jobs such as reducing images for faster pages, email attachments, product listings, CMS uploads, and social assets.
Example jobs
- Compress a JPG photo before uploading it to a website.
- Convert a PNG screenshot to WebP for a smaller web asset.
- Compare size reduction before downloading the optimized file.
How to use Image Compressor
- Prepare one or more images that are already cropped and sized appropriately.
- Set format, quality, metadata stripping, and whether to process one file or a batch before running the tool.
- Generate or process the result, then review visual artifacts, file size savings, transparency, dimensions, and whether small text remains legible.
- Copy, export, or download smaller image files with selected quality and format settings.
- Run a second pass if the destination system, document, or workflow has stricter requirements.
What to know before you use it
- Images are decoded and redrawn through browser canvas.
- Output format and quality are applied locally.
- Metadata is not preserved in the generated canvas output.
- Lossy formats reduce size by discarding detail; repeated compression can compound artifacts.
- Canvas re-encoding often strips metadata, which can reduce size but may remove camera or color profile details.
Checks and edge cases
- Resize large images before compression for the biggest performance improvement.
- Compare the compressed output at the display size users will actually see.
How your data is handled
Images are processed in your browser and are not uploaded. SVG files are not accepted on this page.
FAQ
Why did my PNG become larger?
PNG is lossless and may not shrink with quality settings. WebP or JPG may be better for photos.
Is EXIF metadata preserved?
No. Canvas output generally removes metadata by default.
How large can images be?
The tool enforces size limits to protect browser memory.