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Image Compresseur

Compresser des images en ligne gratuitement — réduisez JPG, PNG et WebP jusqu'à 80% avec perte de qualité minimale. Optimisation intelligente, par lots, aperçu avant/après.

Image Compresseur is a free online image tool that runs entirely in your browser — your files never leave your device and are never uploaded to any server. No installation, no signup; works on both phone and desktop, ready to use instantly.

Le traitement d'images s'effectue localement via Canvas API et WebAssembly avec support par lots. Prévisualisez les résultats instantanément avant de les télécharger.

Chargement de l'outil...

How to use

  1. 1 Ouvrez la page de l'outil Image Compresseur.
  2. 2 Collez votre texte, URL ou données dans la zone de saisie.
  3. 3 Choisissez le mode d'opération et les paramètres.
  4. 4 Exécutez l'outil et consultez le résultat.
  5. 5 Copiez ou téléchargez le résultat.

Why we built this tool

We noticed most image compressors upload files to servers. Since privacy is our core principle, we built this tool to process everything locally using Canvas API and WebAssembly.

About Image Compresseur: what you should know

Designers, content creators, and web developers optimizing visual assets for the web. Whether you need to process an image for a blog post, a product listing, or a responsive layout, this browser-based tool gives you instant results without installing desktop software.

Key features

  • One-Click Download — When you are happy with the result, download the processed image in one click. No watermarks, no sign-up walls, no forced account creation.
  • Quality vs Size Control — Adjust the output parameters to balance visual quality and file size. See the result instantly and pick the setting that fits your use case.
  • Direct File Upload — Drag and drop or select an image from your device. The tool supports common formats and gives you a live preview before any processing happens.

Common use cases

  • Optimizing Assets for Web — Process product photos, blog headers, or icons before uploading to your site. Smaller files load faster and improve page speed scores.
  • Preparing Images for Social Media — Get your images to the exact dimensions or format a platform requires. One quick adjustment and your post is ready to publish.

Questions fréquentes

Cet outil est-il gratuit ?

Oui, entièrement gratuit sans inscription.

Puis-je l'utiliser sur mobile ?

Oui, il fonctionne sur les navigateurs mobiles avec support tactile.

À quelle catégorie appartient-il ?

Image

Le traitement d'images réduit-il la qualité ?

Les outils offrent des contrôles de qualité pour équilibrer la taille du fichier et la qualité de l'image.

What image formats are supported for compression and conversion?

ToolPure supports JPG, PNG, WebP, AVIF, GIF, and BMP formats. You can convert between any of these formats and adjust quality from 10% to 100% for optimal file size.

Can I batch process multiple images at once?

Yes, you can upload and process up to 100 images simultaneously. Batch operations include compression, format conversion, and resizing with a single quality setting applied to all files.

Does image compression use lossy or lossless algorithms?

Both options are available. For JPG and WebP, you can choose lossy compression with adjustable quality. For PNG, lossless compression is used. AVIF supports both modes depending on your quality settings.

Is Image Compresseur safe? Is my data uploaded or stored?

Yes. Image Compresseur runs entirely in your browser: files you select are never uploaded to any server — all processing happens in your device's memory and is wiped when you close the page.

🔒 Privacy & Security：All processing happens locally in your browser. Files are never uploaded or stored.

🔒 Privacy: All processing happens locally in your browser. Your files and data never leave your device — no upload, no server, no tracking.

Outils associés

Image Redimensionneur Redimensionner des images en ligne gratuitement. Changez dimensions par pixels ou pourcentage, gardez le ratio, recadrez à la taille exacte. Traitement par lots. Image Recadreur Crop images to specified dimensions and aspect ratios. Free online image cropper for thumbnails and social media. Image Formater Convertisseur Convertir des formats d'image en ligne gratuitement — JPG, PNG, WebP, AVIF, GIF, SVG, BMP, TIFF, ICO et plus. Haute qualité, par lots, 100% dans le navigateur. Lot Image Processeur Batch compress, convert format, or resize multiple images at once. Image Tatoueur Add text or image watermarks to protect your images. Free online tool for branding photos directly in your browser. Image Couleur Picker Pick colors from uploaded images and get HEX, RGB, and HSL values. Free online image color picker for design work. Image Flou Apply blur effects to images for privacy or artistic purposes. Free online image blur tool for faces and backgrounds in your browser. Image Pivoter Fait pivoter les images à n'importe quel angle.

📖 How-To Guides

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💸 Paid Tool Alternatives

Image Compresseur is a free alternative to the following paid tools — see the full comparison:

Canva alternative → Figma alternative →