Image Compressor
Compress images in your browser — nothing leaves your device
80%
🗜️
Drop images here or click to upload
JPEG, PNG, WebP, GIF supported · Multiple files ok
About this tool
Image Compressor reduces image file size directly in the browser so images load faster, upload more easily, and consume less storage. It is useful for websites, marketplaces, portfolios, email attachments, and any workflow where the original image is heavier than necessary.
When to use it
- •Shrink website images before publishing to improve performance.
- •Reduce attachment size for email, forms, or marketplace upload limits.
- •Batch process multiple images while comparing original and compressed versions visually.
Best for
- •Web designers and developers optimizing images for speed.
- •Creators sending assets to clients, marketplaces, or CMS systems with file limits.
- •Anyone who wants privacy-friendly compression without uploading files to a cloud service.
Output and privacy
- •Outputs compressed images you can download individually or in bulk.
- •Compression runs locally in the browser using canvas processing.
- •Original images stay on the device instead of being uploaded to a server.
Limitations
- •Aggressive compression can introduce visible artifacts, especially in gradients or detailed textures.
- •PNG compression behaves differently from JPEG compression and may not reduce every file dramatically.
- •Very large image batches can take time because processing happens on the local device.
Example use cases
- •Compress 15 portfolio JPGs before adding them to a project case study.
- •Resize and compress oversized ecommerce product shots to meet a marketplace upload limit.
- •Compare original and compressed images side by side before choosing a final quality setting.
Related tools
- •Use Image Converter if you need to change format as well as size, for example PNG to WebP.
- •Use Image Resizer if your main issue is pixel dimensions rather than compression quality.
Frequently Asked Questions
What does this image compressor do?
This tool reduces image file size by recompressing JPG, PNG, or WebP files in the browser. It helps you make images lighter for websites, uploads, email, and storage without leaving your device.
When should I use an image compressor?
Use it when an image looks fine visually but the file is too heavy for web performance, upload limits, or storage. It is especially useful for portfolios, ecommerce, CMS media libraries, and social assets.
How much can I reduce file size?
Typical reductions are 40-80% depending on the image and compression level. The tool shows before/after file sizes so you can find the right balance.
Will compression reduce image quality?
You control the quality slider. At higher settings (80-90%), the visual difference is imperceptible. Lower settings compress more aggressively with visible artifacts.
What formats can I compress?
JPG, PNG, and WebP. You can also convert between formats during compression (e.g., PNG to WebP for better compression).
Are my images uploaded to a server?
No. All compression happens in your browser using the Canvas API. Your images are completely private.
Can I batch compress multiple images?
Yes. Drop multiple files and compress them all at once with the same settings.
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