Free Image Compressor - Compress JPG, PNG, WebP Online

A No hard limit exists — you can drop 50 or even 100 images into the batch area. Your browser's memory sets the real cap. On a typical laptop with 8GB RAM, processing 30 high-res photos takes about 15 seconds. Older devices may slow down past 40 files. Split very large batches into groups of 20 for smoother performance. All stays local, so no server timeout happens.

A Yes, each compression run applies lossy processing to JPG and WebP files. Hitting 'compress' twice at 70% quality doesn't equal one pass at 49% — it compounds artifacts. Stick to one export with your desired quality setting. For PNG, you can recompress losslessly without degradation since it uses a different algorithm. Graphic designers prepping client assets should nail the quality on the first pass to avoid blocky edges or color banding. Test a 90% then 50% sequence on a test photo yourself — you'll see the difference clearly.

A Yes, but it depends on the image itself. JPG compression always drops some data — at 90% quality, most photos look identical to the original but can shrink by 40-50%. For PNG files, you can use lossless compression that removes metadata without altering pixels at all. Our tool's quality slider lets you preview exactly what 80% vs. 60% looks like before downloading. Photographers exporting web galleries usually stick to 85% for a clean balance. Trade secret: try 92% on high-res photos — you won't spot the difference, but files drop noticeably.

A Yes, by default our tool removes EXIF data during compression — that includes camera model, shutter speed, aperture, and GPS location. This is actually a privacy bonus for most people sharing photos online. If you're a photographer keeping copyright info in metadata, export at 95% quality from your editing software first, then run it through our compressor. Teachers creating visual learning materials often prefer this clean behavior since student images don't need geotags. Check the downloaded file properties to confirm removal.

A Blur usually isn't the compression's fault — it's the original resolution. If you're shrinking a 4000px photo down to 800px for a catalog, the tool resamples pixels, and that softens edges. Our compressor caps dimensions at 5000px, so anything larger gets scaled first. For crisp results, export at the exact size you need before compressing. E-commerce sellers often overlook this: a 1000px product shot at 75% quality beats a 4000px shot at 95% once you zoom in. Try 80% quality with sharpening enabled on a test batch — you'll see the difference.

A That's not compression—that's resolution. Our tool caps dimensions at 5000px, so anything larger gets scaled down first, and that's where softness creeps in. Compressing a 4000px photo to 80% quality keeps fine detail; shrinking it to 800px for a product grid won't. E-commerce sellers: export at the exact display size before compressing. A 1000px shot at 75% quality looks sharper than a 4000px one at 95% once zoomed. Try 80% with our preview toggle — you'll spot the difference instantly.

A Not with direct cloud integration, but it takes about 10 seconds to work around. Download the files to your device, drag them into the batch area, and compress—everything runs locally, so your images never touch a server. For small business owners juggling marketing assets, this flow beats uploading to a cloud tool anyway. A 20-image batch from Drive takes under a minute total. Once done, upload the compressed versions back or send them straight to your designer.

A No. Compression only touches file size through pixel data reduction, so a 1200x800 photo stays 1200x800 after processing. Aspect ratio never shifts, which matters if you're prepping rounded corner avatars for a website and can't afford stretched faces. The one exception: images above 5000px get scaled down first. If you need a specific width, resize in your editor before dropping the file here. Most users never notice a change in dimensions at all.

A That happens when the tool converts an unsupported transparency channel into a solid background. You're likely saving a 32-bit PNG-8 incorrectly as a standard JPG, which lacks alpha channels entirely. Check your export settings and make sure the format stays as PNG-32 before hitting the compress button. Social media managers dealing with transparent logos run into this trap often. Keep the original format selected to preserve that invisible background.

A Large catalog images slow down load times and hurt mobile conversion rates. But you don't need expensive software to fix this. Drag a folder of product shots right into the batch area. Set the quality slider to 75% for an instant 60% size reduction. E-commerce managers typically see page speeds improve within minutes after swapping in these lighter files. Try processing 10 items first to test your mobile loading speed.