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📦 Image Compressor

Compress JPG or PNG images by adjusting quality. Your image is processed locally — never uploaded.

🖼️

Drop image here or click to browse

Original
Compressed

What is an Image Compressor?

An image compressor reduces the file size of an image by lowering its quality level or removing unnecessary metadata, while keeping the image visually acceptable. Smaller images load faster on websites, consume less bandwidth, and reduce storage costs. Image compression is one of the most impactful web performance optimisations available — images typically account for 50–90% of a webpage's total download size.

JPEG compression is "lossy" — it discards some visual data permanently to achieve smaller sizes. PNG compression can be lossless (no quality loss) or lossy. WebP is Google's modern format that achieves significantly smaller sizes than JPEG and PNG at equivalent quality. Our tool uses browser-side canvas rendering to compress images by adjusting quality level, letting you find the sweet spot between file size and visual fidelity.

How to Use the Image Compressor

  1. Drop your image onto the upload zone or click تصویر را انتخاب کنید to browse.
  2. را تنظیم کنید Quality slider (10–100%). Lower values = smaller file, lower quality.
  3. Compare the Original و Compressed previews side by side with file sizes.
  4. کلیک کنید Download Compressed Image to save the optimised file.

Why Use Our Image Compressor?

  • 100% رایگان — Compress unlimited images at no cost.
  • بدون ثبت نام - بدون نیاز به ثبت نام
  • مبتنی بر مرورگر — Images are processed locally using the HTML Canvas API — never uploaded to any server.
  • پیش نمایش زنده — See both original and compressed images with their exact file sizes before downloading.
  • Quality Slider — Fine-tune compression from 10% to 100% to hit your target file size.

سوالات متداول

For most web use cases, 70–85% quality is the sweet spot. At this range, JPEG images are visually indistinguishable from originals to most viewers, but file sizes are 40–60% smaller. Product photography for e-commerce can go as low as 65%. Hero images and full-screen backgrounds work well at 75–80%.

PNG compression in this tool re-encodes the PNG through the browser's canvas, which can achieve some reduction, especially for photographic content. For screenshots, diagrams, and images with large flat colour areas, PNG compression is more limited. Converting a PNG to WebP via our Image Converter tool often yields dramatically smaller files.

No. Your image is processed entirely inside your browser using the HTML5 Canvas API. The file is read from your device, rendered onto a canvas, and re-encoded at the specified quality — all locally. No image data is ever sent to our servers or any third party.

Google PageSpeed Insights flags "Serve images in next-gen formats" and "Efficiently encode images" as major opportunities. Large unoptimised images delay Largest Contentful Paint (LCP) — a key Core Web Vital. Reducing image sizes directly improves LCP, which positively impacts both user experience and search rankings.

حقایق سریع

  • ✓ 100٪ رایگان، بدون هزینه پنهان
  • ✓ بدون حساب کاربری یا ورود به سیستم مورد نیاز است
  • ✓ در هر مرورگری کار می کند
  • ✓ داده های شما هرگز دستگاه شما را ترک نمی کند
  • ✓ Side-by-side preview with file size comparison

ابزارهای مرتبط