Drop your images
Add one file or a whole batch — JPG, PNG or WebP. Nothing uploads; the browser reads the files directly.
Optimize
Compress JPG, PNG, WebP in your browser
Files never leave your device
No files yetDrop your file here
or choose a file from your deviceCompress images to make them smaller on disk and faster on the web. Pick a quality, choose an output format, and the tool re-encodes in your browser — no upload required.
FreeFiles stay on deviceIn-browserPopular
Privacy you can verify
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Use DevTools to confirm this tool does not upload selected files to ImageME for processing.
Compress
Compression guides by format and use case
Free JPG compressorCompress JPG online for freeQuality 75-85Visually lossless compressionCompress an image without losing qualityQuality 85-90Email attachment sizeCompress an image for emailQuality 70-80Web image optimizationCompress images for your websiteQuality 75-85, WebP outputPNG compressionCompress PNG online without losing transparencyQuality slider toward the higher endInstagram-ready compressionCompress photos before posting to InstagramQuality 80-90Image file size reducerReduce image file size onlineQuality 75-85iPhone image compressorCompress an image on iPhoneQuality 75-85
How it works
Three steps from start to finish.
Pick a format and quality
Choose an output format and slide the quality between roughly 60 and 95. A live preview shows the size trade-off as you move it.
Download the result
Export a single file or, for batches, a zip. Each file keeps its dimensions — only the encoding changes.
Use cases
Where this tool earns its keep.
Faster-loading web pages
Shrink hero images and product photos so pages load quicker and rank better on Core Web Vitals.
Email and form attachments
Get photos under common attachment limits (10–25 MB) without re-shooting or cropping anything.
Portfolio and gallery uploads
Many platforms cap upload size or silently re-compress large files — submit a controlled, pre-optimized version instead.
Lighter app and site assets
Ship smaller JPG, PNG or WebP assets in a build without adding a build-step image pipeline.
Tips
Get the most out of it.
Pick the right format
WebP is ~30% smaller than JPG for the same quality. PNG is best only for sharp UI or transparency.
Mind the quality slider
Quality 75-85 is invisible to the eye for photos but cuts file size in half.
Strip metadata
EXIF and color profiles can add 20-60 KB. Turn metadata off for the web.
Common mistakes
Avoid these before you export.
Compressing a JPG that's already compressed
Re-encoding a heavily compressed JPG adds new artefacts on top of old ones. Start from the highest-quality original you have.
Using PNG for photographs
PNG is lossless and large for photographic detail. Reserve it for flat graphics, screenshots and transparency; use JPG or WebP for photos.
Chasing the smallest possible file
Quality below ~60 introduces visible blotching on skin tones and gradients. Compare the preview at 100% zoom before committing.
FAQ
Questions people ask about this tool.
Does compressing an image reduce its resolution?
No — compression changes how pixels are encoded, not how many there are. Use Resize if you also need smaller dimensions.
Will I be able to see the quality loss?
At quality 75–90 the difference is invisible to most people on a normal screen. Below ~60 you'll start to see soft blotching in gradients and skin tones.
Which output format should I choose?
WebP gives the smallest files at equal quality and is supported by all modern browsers. Pick JPG only if you need maximum compatibility with older software.