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Image Compressor

Reduce image file size by up to 90% — directly in your browser. No uploads, no accounts, completely private. Supports JPG, PNG, WebP, AVIF, GIF, BMP, and TIFF.

How to compress an image online

Drop your image onto the upload zone (or click to browse), then adjust the quality slider and output format. The before/after preview updates in real time so you can see exactly how much you're saving. When satisfied, hit Download — no account, no email, no waiting.

Why choose WebP for compressed images?

WebP is Google's open image format designed specifically for the web. It produces files 25–35% smaller than equivalent-quality JPEG and 26% smaller than PNG, with full transparency support. All modern browsers (Chrome, Firefox, Safari 14+, Edge) support WebP natively, making it the safest format choice for web images in 2025.

When to use each output format

  • WebP — Best all-rounder for websites. Smallest size with great quality.
  • JPEG — Use when you need universal compatibility, including older browsers and email clients.
  • PNG — Required for images with transparency or when pixel-perfect quality is needed (logos, screenshots).
  • AVIF — Next-gen format with 50% smaller files than JPEG. Supported in Chrome 85+, Firefox 93+, and Safari 16+.

Your images never leave your device

Unlike most online image tools, this compressor runs 100% client-side using the browser's built-in Canvas API. Your files are processed in memory on your own device and are never transmitted to any server. This makes the tool fast (no upload delay), private, and available offline after the first visit.

Frequently asked questions

No. All compression and conversion happens directly in your browser using the Canvas API. Your images never leave your device. This makes the tool completely private — ideal for confidential documents, personal photos, or sensitive business assets.
Input: JPG, PNG, WebP, AVIF, GIF, BMP, TIFF (and HEIC in Safari on Apple devices). Output: WebP, JPEG, PNG, or AVIF. For AVIF output you need Chrome 85+ or Firefox 93+. GIF compression captures the first frame as a static image.
For web images: 75–85 is the sweet spot — most people can't tell the difference from 100 quality at typical screen sizes. For thumbnails or background images: 60–75. For print-ready images or large hero images where you want zero compression artifacts: 90–95.
There is no enforced limit since processing happens locally. Files up to 50 MB and images up to 8000×8000 pixels work reliably on modern devices. The canvas maximum dimension is 16,383 pixels — the tool enforces this automatically. Very large files may be slow on older hardware.
This tool processes one image at a time with a live preview. For multiple images, use the dedicated Bulk Image Compressor → which accepts up to 20 files simultaneously.

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