Image Compressor
Compress and optimise images to reduce file size without quality loss.
What is the Free Image Compressor?
The free Image Compressor reduces image file sizes using JPEG or WebP compression — all inside your browser with no upload required. Drop your image, choose an output Format (JPEG or WebP), and drag the Quality slider (5–100%) to find the right balance between file size and visual quality. Three stat cards update live: Original size, Compressed size, and Savings percentage — so you can see exactly how much space you're saving before downloading.
- → Compressing product images for faster e-commerce page loads
- → Reducing photo file sizes before uploading to a website or CMS
- → Compressing images for email attachments or social media posts
- → Optimising image assets to improve Google PageSpeed or Core Web Vitals scores
How to Use the Free Image Compressor
- 1 Drop or select your image in the drop zone.
- 2 Choose the output Format: JPEG (widest compatibility) or WebP (better compression).
- 3 Drag the Quality slider — lower values create smaller files with more compression artefacts.
- 4 Watch the Original, Compressed, and Savings cards update live.
- 5 Click Download Compressed Image when you're happy with the file size.
Key Features
- 📉 Live size comparisonOriginal size, compressed size, and savings percentage shown in real time as you adjust quality.
- 🔢 Quality slider (5–100%)Full control over the compression level — drag to find the sweet spot for your image.
- 🖼️ JPEG and WebP outputJPEG for maximum browser compatibility; WebP for 25–35% smaller files at the same quality.
- 👁️ Visual previewSee exactly how the compressed image looks before downloading.
- 🔒 Free, privateNo server upload — compression happens locally using your browser's Canvas API.
Example Usage
Input: photo.jpg 2.4 MB · Format: WebP · Quality: 75%
photo-compressed.webp — 340 KB (86% savings)
Frequently Asked Questions about the Free Image Compressor
- What is the free Image Compressor?
- Compress and optimise images to reduce file size without quality loss.
- Is the Image Compressor free to use?
- Yes, the Image Compressor is completely free. No account, subscription, or signup is required — ever.
- Does my data get uploaded anywhere?
- No. The Image Compressor runs entirely in your browser. Your data is never sent to any server.
- Does it work offline?
- Yes. Once the page has loaded, the tool works without an internet connection.
- Which browsers are supported?
- All modern browsers — Chrome, Firefox, Safari, and Edge. No plugins or extensions required.
- What quality setting should I use for web images?
- A quality of 75–85% for JPEG and 70–80% for WebP typically delivers an excellent visual result while achieving 60–80% file size reductions. For hero images or photography showcases, 85–92% preserves more detail.
- Does this free compressor support PNG files?
- You can upload PNG files — they will be converted and compressed to JPEG or WebP on output. For lossless PNG compression, use the Image Format Converter and export as PNG with quality at 100%.
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