How do I compress an image without losing quality?

Upload your image and adjust the quality slider. Around 80% is usually a good balance between size and clarity.

Is the image compressor free?

Yes, completely free with no account required and no watermarks.

Can I compress multiple images at once?

Yes. You can drop multiple images and compress them in a batch, then download them individually or as a ZIP.

What image formats are supported?

JPEG, PNG, and WebP are supported, and you can also convert formats while compressing.

Are my images private when compressing?

Yes. Compression happens entirely in your browser using WebAssembly.

Compress

Compress Images Online

Reduce image file size without losing quality. Supports JPEG, PNG, WebP, and AVIF. Set a target file size or adjust quality manually. No upload — everything runs locally in your browser.

Read our full guide

Drop images here, paste, or click to select

Features

Batch compress multiple images at once

Support JPEG, PNG, WebP, and AVIF output formats

Target file size mode — auto-find quality to hit your KB target

Adjustable quality slider from 10% to 100%

See before/after file size comparison

Download individually or as ZIP archive

100% browser-based — images never leave your device

Re-compress with different settings anytime

Real-time compression ratio display

How to Use

Upload one or more images by drag & drop, paste, or click

Choose output format and adjust quality level

Click Compress All and watch the progress

Download compressed images individually or as ZIP

image compressorcompress photosreduce file sizebatch compressJPEG optimizerPNG compressorWebP converteroptimize imagesfree onlineno upload

100% private — your images are processed in the browser and never uploaded to any server.

Related Tools