Compress Image Online — Free Image Compressor to a Target KB

Upload your JPG or PNG and move the quality slider to find the smallest file size that still looks sharp. Our smart compression balances detail and size, so webpages load faster, email attachments stay under limits, and SEO improves due to better Core Web Vitals scores. Supports JPG, PNG, WEBP, GIF, SVG formats.

JPG is ideal for photos because it compresses gradients well. PNG suits graphics with flat colors and transparency. WebP is a modern format offering excellent quality at smaller sizes. SVG is vector-based and doesn't need compression. Use our compressor to optimize each format depending on your content and destination for e-commerce and web design.

By default the compressor keeps your width and height and reduces file size by lowering quality. In target-size mode it can also narrow the image to fit the size you asked for. If you need specific smaller dimensions, first use the image resizer, then compress the result. This two-step workflow maintains clarity while producing small, shareable files for web and mobile.

For most photos, a 70–80% quality setting preserves detail while trimming file size dramatically. Product images with text or fine lines may need slightly higher quality. Check a 100% zoom preview to confirm typography and textures remain clean before downloading. Optimized for e-commerce platforms and business websites.

Yes. Compression happens on our secure servers; uploads are encrypted in transit and removed under our Security policy. Downloads have no watermark.

Yes. The tool reduces megabytes to manageable sizes that meet email limits and CMS upload restrictions. Smaller images publish faster on blogs, Shopify, and WordPress, and they're friendlier for users on slower mobile connections, improving overall UX and engagement.

The quality slider runs from 10 to 100. Start around 60–80 for general use, use a lower value when file size matters most, or a higher value for fine detail, text and logos. The preview shows how the quality looks, not the file size; the before and after sizes appear on the result screen, and results vary by image.

Yes — enter a number into Target file size (KB) and the server automatically searches quality levels (and reduces dimensions if needed) to land as close to that size as it can, disabling the quality slider while it's active. It is best effort: if nothing fits, the closest result is returned and can be above your number, so check the size on the result screen. This is the fastest way to hit a hard limit like a 100KB upload cap instead of trial-and-error dragging the slider.

Each preset jumps the quality slider straight to a tested value — High compression (30%), Medium (50%), Balanced (70%) and High quality (90%) — so you can pick a starting point by name instead of guessing a percentage, then fine-tune from there if needed.

Yes — switch to Batch mode to queue multiple photos, compress every one with the same quality, format and target-size settings, and download them all together as a single ZIP. Batch processing is a Premium feature; single-image compression stays free.

Yes — enter a target file size in KB and the server compresses toward it, lowering quality and, if needed, dimensions; if nothing fits, the closest result is returned and can land above your number. It is the quickest way to compress a JPEG to 100KB, 50KB or 20KB for upload forms and portals that enforce strict size limits. Leave the field empty to use the quality slider instead.

Yes, on Premium — batch mode is a paid feature that turns this into a bulk image compressor: apply one shared quality setting to up to 60 photos on Premium or 200 on Pro and download the results as a single ZIP. It is the fast way to compress product catalogs, blog libraries and photo archives in one pass.

Yes — choose PNG as the output format and transparent areas are preserved while the file is optimized. If your image has no transparency, JPEG or WebP will usually give a much smaller file at the same visual quality; the result screen shows the new size and the percentage saved before you download.

Yes — Pixoate supports batch and bulk processing. Switch to Batch mode, add up to 60 images on Premium or 200 on Pro, set your options once, and every image is processed with the same settings before you download a single ZIP. Bulk processing is a Premium feature; the output uses the same quality and settings as single mode.

Yes — with bulk processing you configure the settings a single time and they apply to every item in the batch — up to 60 images on Premium or 200 on Pro. There is no need to repeat the setup per item, and Temporary uploaded and generated files are processed securely and deleted automatically.

Almost always one of three things. The file is over the 20 MB free upload limit — Premium takes 50 MB and Pro 120 MB. The format is not one this tool accepts, so check the list shown on the upload panel. Or the file is not really the format its name says: renaming a file does not change what is inside it, and that is the reason a valid-looking image gets refused.

Start from the highest-resolution original you have. A screenshot of a photo, or a copy that has already been compressed and re-shared, gives the tool far less to work with and no setting recovers that. Then, where there is a strength control, come down from the default — most photos need less than the default suggests. Compare against your original at full size before you download.

Compress Image to KB supports free standard use within the published processing allowances. Free downloads are clean — no watermark. No signup is required for standard tool use. Photo effects and AI edits have a web-size limit on Free, with the original-resolution result available through Premium or one credit. Crop, resize, rotate, compress and convert stay full size. Premium supports batches of up to 60 files, with the applicable plan limits shown before processing.

No — Compress Image to KB runs in the browser on desktop and phone. There is nothing to install, no trial to start, and no license to buy before you can see whether it does what you need. Try it on the file you are actually stuck with rather than a sample.

The compressor lowers quality first and then narrows the picture a limited number of times. If it still cannot fit, it returns the closest result, which can be above your number. GIF output ignores the target. Check the size on the result screen, then lower the target a little, resize first or switch format.

Set the pixel size first with the Image Resizer, then compress the result here to your KB number. Doing it in that order keeps more detail than compressing a large photo first. Check the size on the result screen and the dimensions in your file manager before you upload.

A large camera photo needs heavy compression to fit 100KB, so some softness is possible. The compressor lowers quality first and narrows the picture only when it must, and a photo with fewer pixels keeps more detail at the same file size. Compare the result with the original before you submit it.

The field takes kilobytes, so it works as a KB compressor, and 1 KB is 1,024 bytes. For a 1 MB limit, enter 1024, for 5 MB, enter 5120, and for 10 MB, enter 10240. A site that counts 1,000 bytes per KB will read your file as slightly larger, so leave a small margin under its limit.

Some loss is normal, because JPEG and WebP save space by discarding fine detail. The compressor keeps the highest quality that still fits your number, so a larger KB target keeps more detail than a small one. Resizing the picture first also helps, since fewer pixels need fewer bytes.

Set Output Format to PNG and compress as usual. The PNG keeps its transparent areas and gets smaller by using fewer colors, so flat graphics usually hold up while photos and gradients can look banded. If transparency is not needed, JPEG or WebP will normally give a much smaller file.

Yes. Choose GIF, WebP or PNG under Output Format before you compress, because the page starts on JPEG unless you upload a GIF. A GIF keeps its animation and gets smaller by reducing size and colors, and a KB target is ignored for GIF. WebP often gives a lighter file than JPEG at similar quality, while a PNG gets smaller by using fewer colors, so photos can look banded.

It means making the file smaller in kilobytes, which the Target file size (KB) field does. Resizing in the usual sense changes width and height in pixels. The two often go together, because a smaller picture needs fewer bytes, so when a form sets both a pixel size and a KB limit, resize first and then compress.

It is kilobytes, which measure the size of the file. Pixels measure width and height, and a form usually lists those as a separate rule. Enter the KB number here, then check the dimensions in your file manager. If the form wants specific pixel dimensions, resize the picture first and compress it afterward.

Yes. Upload a PNG, HEIC, WebP, BMP or other image, set Output Format to JPEG and enter 100 in Target file size (KB), or 50, 200 or any other KB value. It also works as a photo to JPG converter, 100 KB or lower, for camera pictures. The result is aimed at your number, and the closest file is returned if it cannot be reached, so check the size on the result screen.

Often, but not in every case. The page tries quality from 10 to 95 and then narrows the picture a few times, which brings many photos under a small number. If the target is still out of reach, the closest result is returned and it can be larger than 20 KB, so check the result screen. A smaller original, or a resize first, gives it a better chance.

Leave Target file size (KB) empty and use the Quality slider instead. It runs from 10 to 100 and starts at 30, so move it up to 70 or 90 when the photo has to stay sharp. A JPEG keeps its pixel dimensions in this mode. The result screen shows the original and compressed size, so you can adjust and compress again.

Upload the photo, then either type the size you need in Target file size (KB) or leave it empty and move the Quality slider. The result screen shows the new size next to the original, and your original file is left untouched. A camera photo, a phone picture and a scanned JPEG all follow the same steps.

Convert the limit to KB, since 1 MB is 1024 KB, and type it in Target file size (KB). For a 1 MB limit, enter 1024. The compressor lowers quality first and narrows the picture only when it must, and the result screen lists the original size next to the new one. Download the copy once it fits.

JPEG and JPG are two spellings of one format, so there is nothing to convert. Upload the .jpeg or .jpg file, keep Output Format on JPEG and compress it to a target size or a quality level. The file you get is the same format, only lighter.