Compress photos and images in your browser
Free JPG, PNG, and WebP compressor. No upload, no signup, no watermark. Files never leave your device.
How to use the image compressor
- 1
Drop your images
Drag and drop JPG, PNG, or WebP files into the box above, or click to pick files.
- 2
Choose quality and format
Lower quality means smaller files. Pick the output format you need.
- 3
Download
Each compressed image is ready to download instantly. Files never leave your browser.
Why use a browser-based compressor?
Most image compressors upload your files to a server, process them, and send them back. That round-trip is slow, uses bandwidth, and means your photos pass through a stranger's machine. Fileoholic's compressor is different — every byte stays on your device. The compression code runs in your browser, in JavaScript, using a Web Worker so your page never freezes.
Drop a 5 MB photo and it shrinks to a fraction of the size in seconds, ready to attach to an email, upload to a portal, or share on social. Quality stays high at 70-80 on the slider. No daily limit, no signup, no nag screens.
Your files never leave your browser.
All processing runs locally on your device. No uploads, no tracking of file content.
FAQ
Are my files uploaded to a server?
No. All compression runs in your browser using JavaScript. Your images never leave your device.
How do I compress a photo or picture?
Drop the photo into the box, pick a quality level, and download the smaller file. It works the same for any picture — JPG, PNG, or WebP — and the compression runs entirely in your browser, so the original never leaves your device.
What file formats are supported?
JPG, PNG, and WebP for both input and output. Drop one file or many.
Is there a file size limit?
Each file should be under 30 MB to work reliably on mobile browsers. Desktop browsers handle more.
How do I compress an image under 100 KB?
Drop the image, pick JPG output, and slide quality down to 50-60. For most phone photos that lands the output between 60 and 120 KB. If still too big, also resize to 1280 px on the long edge first using our image resizer.
How do I compress an image for email?
Quality 80 at 1600 px on the long edge is the safe recipe — typically 400-700 KB from a 5 MB phone photo. Five photos fit Gmail's 25 MB limit comfortably.
Can I compress multiple images at once?
Yes. Drop many files in one go. Each is compressed independently and the originals stay on your device throughout.
Why is my PNG only slightly smaller?
PNG is already lossless. For big size cuts, convert PNG to JPG or WebP using the format selector.
Does compression reduce image quality?
Yes, that is how it saves space. Use the quality slider to balance file size and visible quality. 70-80 is usually invisible.
Need more advanced features?
For batch processing, OCR, or professional editing, check out Adobe Acrobat or Smallpdf Pro. Disclosure: contains affiliate links. We may earn a commission at no extra cost to you.
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Last updated: 2026-05-22