Image Compressor
A large file is not a sign of quality. It is a sign of a problem.
A product image of 8MB on an e-commerce page directly impacts load time, Google ranking, and conversion rate. A 45MB presentation won't open on the client's phone. A packaging mockup in JPEG with aggressive compression loses details that matter during approval.
The point most designers miss is that compression and visual quality are not direct opposites. An image compressed with the right algorithm maintains perceived quality at a fraction of the original file size.
JPG works well for photographs and images with gradients. PNG is the right format when there are transparent areas or text. WebP delivers the best file size results for web.
The most common mistake is compressing all formats the same way. A logo in PNG compressed aggressively loses sharpness in the text. A product photo converted to PNG will generate a file unnecessarily larger than the equivalent JPG.
Frequently Asked Questions
What is the difference between lossy and lossless compression?
Lossy compression permanently removes image data to reduce file size — JPEG is the most common example. The reduction is significant, but repeated compression degrades quality over time. Lossless compression reduces file size without discarding any data — PNG uses this method. The original image can be perfectly reconstructed. For assets you will continue editing, always keep a lossless source file.
What image format should I use for web?
WebP is the best format for web in 2024 — it delivers smaller files than JPEG and PNG at equivalent quality, and it supports transparency like PNG. JPEG remains the right choice for photographs on platforms that don't support WebP. PNG is ideal when transparency is required and file size is not a primary concern. Avoid using PNG for photographic images on web — the file size is unnecessarily large.
Does compressing an image reduce its print quality?
Compression reduces file size but does not change DPI or physical dimensions. A JPEG at 80% quality typically retains sufficient detail for screen use and most digital presentations. For print, the risk is not the compression level itself — it is using a compressed image that was already at low resolution. Always start from a 300 DPI source file before compressing for digital delivery.
Is it safe to compress images in the browser?
Yes. This tool processes all images locally in your browser — no file is uploaded to any server. The compression happens entirely on your device, which means your images remain private and processing is fast regardless of your internet connection. This is especially important for confidential packaging mockups, unreleased product images, and client artwork.
Why are my PNG files so much larger than JPEG?
PNG uses lossless compression and stores all color data without discarding anything. For photographs with millions of color variations, this results in very large files. JPEG's lossy compression is specifically optimized for photographic content — it discards color information the human eye is less sensitive to, achieving significant size reduction with minimal perceived quality loss. Use PNG for logos, graphics with text, and images requiring transparency. Use JPEG for photographs.