Compress images without uploading them
Drop a whole folder of photos, pick a quality or a size target such as 100 KB, and watch the result update in the preview before you download. Everything runs on your device.
How to compress image
- Drop your images. Any number of JPG, PNG, WebP, HEIC, AVIF, GIF or BMP files. They are read straight from your disk.
- Pick quality or a size. Use the quality slider, or switch to target size and type the kilobytes a form or website demands. The preview shows the result as you adjust; zoom in to check the pixels.
- Download. Each row shows the before and after size. Download one, grab them all as a zip, or send them on to another tool.
Why use myownpic for this
Nothing is uploaded
Photos are read from your disk and processed by your browser. There is no server, so ID scans, family pictures and work files never travel anywhere.
Faster than any upload
A 10 MB photo compresses in about a second. No queue, no upload bar, no download round trip, and it keeps working offline.
Whole batches, one zip
Drop a folder, not a file. Every tool works on many images at once and hands you a zip.
No watermark, no account
Free with no sign-up, no daily quota, no resolution cap and no logo stamped on your pictures.
Questions people ask
How does it compress without uploading?
Your browser decodes the image and re-encodes it at the chosen quality, then hands the smaller file back to you. The page is a static site; there is no server that could receive the photo.
Why are the files smaller than from other tools?
JPGs are written with MozJPEG, the encoder behind Squoosh, which produces files roughly a fifth to a third smaller than a phone or a typical app at the same visual quality. PNGs get a palette like TinyPNG makes. Both run on your device.
Which quality should I use?
Between 75 and 90 percent most photos look identical to the original at a fraction of the size. Below about 60 percent you may notice blocking in flat areas and around sharp edges. Use the preview at 2× or 4× to judge for yourself.
How does target size mode work?
It searches for the highest quality that still fits under your limit, and only if the lowest quality is still too big does it reduce the pixel dimensions step by step. You get the best-looking file that satisfies the cap. For PNG it tries smaller palettes first.
How does PNG compression work here?
PNG has no quality dial, so the tool reduces the image to a palette of 256 colours, the trick TinyPNG is known for, which typically cuts 60 to 80 percent with no visible change on screenshots, logos and graphics. Photos with smooth gradients can show faint banding; switch to lossless or to WebP for those.
Should I choose AVIF?
AVIF files are the smallest, often half the size of a JPG that looks the same, but they take longer to make and some older apps and forms still refuse them. WebP is the safe middle ground; JPG opens everywhere.
Is there a limit on files or size?
No. Because nothing is uploaded there is nothing to meter. Very large batches are limited only by your device’s memory; three images are processed at a time to keep it smooth.
Does it keep my photo’s metadata?
Re-encoding drops EXIF data such as camera model and GPS location, which is usually what you want when sharing. If you need the metadata kept, keep the original file too.