Need to shrink an image file without losing visible quality? Rekreay's free Image Compressor reduces JPG, PNG, and WebP file sizes by up to 90% — right inside your browser, instantly. No upload to any server, no account required, no watermark. Your image never leaves your device. Just drop your file, choose your quality level, and download the optimised result in seconds.
Whether you're speeding up a website, trimming a photo before emailing, or freeing up storage space, this tool gives you live before/after size stats and a real-time preview so you know exactly what you're getting before you download.
Free Image Compressor — Reduce File Size Instantly
Drag & drop your image here
Supports JPG, PNG, WebP — compressed 100% in your browserCompressed Preview
What Is This Image Compressor?
The Rekreay Image Compressor is a free, browser-based tool that reduces the file size of your JPG, PNG, and WebP images without uploading them to any server. All compression happens locally inside your browser using the HTML5 Canvas API, so your files stay completely private and the tool responds in milliseconds — no waiting for uploads or server processing.
Large image files slow down websites, fill up email inboxes, and eat through mobile data. Image compression solves these problems by encoding your image more efficiently. For JPG and WebP, the tool uses lossy compression — it intelligently discards image data that the human eye is unlikely to notice, achieving dramatic file size reductions with little or no visible quality loss. For PNG, it uses lossless re-encoding, which shrinks the file without changing a single pixel.
A quality slider lets you find the exact balance between file size and image sharpness. You also choose the output format — WebP for the smallest possible files on modern browsers, JPG for the widest compatibility, or PNG when you need to preserve a transparent background. A live stats bar shows you exactly how many bytes you saved before you download the result.
How to Compress an Image — Step by Step
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Upload your image. Click "Choose Image" or drag and drop a JPG, PNG, or WebP file onto the upload area. The file loads instantly inside your browser — nothing is sent to any server.
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Set your quality level. Drag the Compression Quality slider. A higher value (80–95%) keeps more detail with a moderate size reduction. A lower value (40–70%) achieves maximum savings with minimal visible difference on screen.
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Choose your output format. WebP delivers the smallest files for modern browsers. JPG is ideal for photographs shared widely. PNG is best when your image has transparency or sharp edges such as logos and screenshots.
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Click "Compress Image". The tool draws your image to an off-screen canvas and re-encodes it at the quality you chose. A live stats bar shows Original size, Compressed size, and exactly how many bytes you saved.
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Download your compressed image. Click the Download button to save the result. The filename includes the format so you can easily tell your optimised files apart from the originals.
Frequently Asked Questions
Tips & Best Practices for Image Compression
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Start with the highest-quality original you have. Never compress an already-compressed image repeatedly if you can avoid it. Each round of lossy compression adds more artefacts. Always work from your original high-resolution file and compress just once to your target quality.
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Use 75–85% quality for most website images. This range typically reduces file size by 60–80% while keeping the image looking sharp on screen. It is the sweet spot for blog post images, product photos, and social media thumbnails. At 100% on a screen, most people cannot tell the difference between a 75% and a 100% quality image.
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Choose WebP as your default output format. WebP delivers the smallest files at any given quality level and is supported by all major browsers including Chrome, Firefox, Safari, and Edge. Switching from JPG to WebP at 80% quality can cut your image file size in half compared to a JPG at the same quality.
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Use PNG output only when transparency is required. PNG compression through this tool is lossless, meaning the file size reduction will be smaller than with JPG or WebP. Reserve PNG for images that have transparent backgrounds — logos, icons, UI elements, and screenshots of software interfaces.
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Compress images before uploading to Blogger or WordPress. Most CMS platforms automatically apply some compression on upload, but it is often not enough. By compressing your images first with this tool, you ensure they are already at an optimal size before the platform applies any additional processing — giving you full control over the final result.
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Compress before converting to PDF. If you are planning to combine several images into a PDF using the Image to PDF Converter, compress them here first. Smaller images produce a dramatically smaller PDF — especially useful for multi-page documents with dozens of photos.