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Compresser une image à 5KB, 10KB, 20KB… jusqu’à 500KB (JPG)

Glisser-déposer ou
JPG PNG WEBP
Zero-Upload (Mode 100% Confidentialité)

Tout le traitement se fait dans votre navigateur. Aucune donnée n’est envoyée à nos serveurs.

KB
Sortie:
Tip: Select WEBP to compress and convert to WEBP for even smaller files.

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Free Online Image Compressor & Resizer (JPG / PNG / WEBP)

Compress, crop, resize and convert with precision—fully in your browser. Zero‑Upload mode delivers 100% on‑device privacy and works offline after first load. Target exact file sizes (1KB → 2MB) without sacrificing visual quality.

Start Compressing
No Watermark Zero‑Upload Exact KB Target
Visual representation of image compression

Why Choose ImgSmaller?

We focus on practical control: crop before compress, rotate if needed, set an exact target size, switch formats (JPG ↔ WEBP ↔ original) and export immediately—all with Zero‑Upload 100% privacy and offline capability. No accounts, no noise—just results you can trust.

Multi‑Image Workflow

Upload several images, fine‑tune each, then download individually or as a ZIP.

Quality Preservation

Edge-aware processing and color fidelity reduce artifacts in gradients & text.

Flexible Conversion

Switch to WEBP for smaller output or keep original extension for compatibility.

Private by Design

Zero‑Upload processing stays on‑device—nothing leaves your browser and it still works offline.

How It Works

A simple, three-step process to get perfectly sized images.

01

Upload Your Image

Upload or drag & drop one or multiple images (JPG / PNG / WEBP).

02

Configure & Compress

Optional: crop & rotate for best framing. & Set a target size (or enable Auto quality).

03

Download & Use

Pick output format: JPG, WEBP or keep original.

Use Cases

  • Portfolio & resume submissions
  • E‑commerce product galleries
  • Blog feature & hero images
  • Social media thumbnails & banners
  • Client mockups & design previews
  • Email attachment size limits
  • Job portal strict KB requirements
  • App & dashboard UI assets

Data Privacy & Security

Your workflow, your control. In server mode, temporary uploads are automatically purged after a short retention window. Switch on Zero‑Upload mode and nothing is transmitted—processing stays entirely inside the browser sandbox and continues to function offline after initial load.

  • No account or tracking pixels required
  • HTTPS enforced end‑to‑end
  • Temporary storage auto‑deletion (server mode)
  • Local canvas processing in Zero‑Upload
  • Offline capable after first load
  • 100% on‑device privacy (Zero‑Upload)

Frequently Asked Questions

Quick answers to common questions about our image compression tool.

JPG, PNG and WEBP are fully supported for compression, cropping and resizing.
You can target sizes as low as 1KB or choose any preset up to 2MB.
Our adaptive tuning preserves clarity—edges, icons and gradients remain visually clean.
A privacy feature keeping all processing inside your browser—no file transfer occurs.
Yes, upload several, adjust individually, then zip download them all.
Yes. No watermark, no forced signup, no paywall for core features.

Ready to Optimize Your Images?

Jump back to the uploader and start compressing—no signup, no waiting. Your pixels, perfectly optimized.

Get Started Now