Will compression reduce visible image quality?

At quality 80+, most people cannot detect a difference. The auto mode targets settings where quality loss is imperceptible.

How many images can I compress at once?

Up to 20 images per batch. There is no daily limit.

Is EXIF data removed during compression?

By default, EXIF data is preserved. You can choose to strip it using the "Remove metadata" toggle.

Does this work offline?

Once the page has loaded, compression works fully offline since all processing is in-browser.

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🌐 Runs in Browser⏱ Est. Instant – 5 seconds

Compresseur d'Images

Compressez vos images jusqu'à 90% sans perte de qualité visible

Try It Now — Free

What is Compresseur d'Images?

Compress JPEG, PNG, WebP, and GIF images directly in your browser. Adjust quality, compare before/after, and download compressed files instantly. Batch compress up to 20 images at once.

Key Features

Compress JPEG, PNG, WebP, and GIF

Adjustable quality slider (1–100)

Side-by-side before/after comparison

Batch compress up to 20 images

Shows compression ratio and savings in KB/MB

Smart auto-quality that targets minimal visual loss

Download individual files or all as ZIP

Preserves or strips EXIF metadata on demand

How It Works

Drop Your Images

Drag up to 20 images onto the upload zone, or click to browse.

Adjust Settings

Use the quality slider or let the smart auto mode choose the best compression for each image.

Preview & Compare

Instantly see compressed previews alongside the originals with file size deltas.

Download

Download each compressed image individually or all at once as a ZIP.

Who Is This For?

▸Web developers optimizing page load times
▸Bloggers reducing image sizes before upload
▸E-commerce teams maintaining product image quality at low file size
▸Email marketers reducing attachment sizes

Why Use Compresseur d'Images?

Unlike cloud-based alternatives that upload your files to remote servers, Compresseur d'Images runs entirely in your browser. Your data stays private. No account, no subscription, no upload limits — just instant results. Built with cutting-edge web technologies including WebAssembly and WebGL for near-native performance.

Technical Details

JPEG and WebP compression use the browser's native canvas.toBlob() API. PNG compression leverages a WASM-compiled pngquant for lossy optimization and oxipng for lossless. All processing runs in Web Workers.