How much can I compress an image without losing quality?

For JPEG images, quality 75-85% typically reduces file size by 50-70% with no visible quality loss. WebP at quality 75 achieves 25-35% smaller files than JPEG at equivalent quality.

Does image compression upload my files?

No — all compression happens in your browser using JavaScript. Your images never leave your device.

What formats does the image compressor support?

The compressor supports JPEG, PNG, and WebP input, and can export to JPEG, PNG, or WebP.

What is the maximum file size I can compress?

There is no hard limit — processing depends on your device's memory. Images up to 20MB work reliably on modern devices.

Free Image Compressor, No Upload Needed

compress

StudioLimb

Media Suite

100% Client-Side Processing

upload_file

Drop your image here

Supports PNG, JPEG, WebP (up to 20MB)

Free reference

The 47 Tools Cheat Sheet

One printable page with every tool on this site, what it does, and when to reach for it. Free. It asks for an email so Gumroad can send you the file, unlike the tools themselves.

download Get the free PDF menu_book See the paid handbook

Free Online Image Compressor — Compress Without Losing Quality

Reduce JPG, PNG, and WebP file sizes directly in your browser. No uploads, no server processing — your images stay private and compression is instant.

help How to Use

Upload or drag & drop your image
Adjust the quality slider (75–85% is the sweet spot)
Compare original vs compressed in the preview
Download the compressed file

check_circle Best Use Cases

Optimizing images before uploading to a website
Reducing email attachment sizes
Social media image preparation
Improving Core Web Vitals (LCP scores)
Batch-compressing product images

tips_and_updates Tips

75–85% quality is visually identical to 100% for most photos
Always compare the preview before downloading
Convert to WebP first for maximum savings
Never compress screenshots with text — use lossless PNG