Compress Image to 30 KB

A 30 KB target is strict for many photographs. A simple icon or flat illustration may reach it with modest changes, while a noisy or detailed photo may need fewer pixels or a different format. The result depends on the source, so use the measured output rather than assuming that the selected target guarantees the same quality.

This compressor counts 1 KB as 1,024 bytes, so 30 KB equals 30,720 bytes. Some upload forms use decimal units and call 30,000 bytes 30 KB. If the receiving service uses the decimal limit, try a custom 29 KB target to leave room, then inspect the downloaded file's exact byte count.

When the first attempt misses the limit, return to the original and reduce width and height proportionally before pushing quality lower. A small profile slot may not need thousands of pixels. Check the portal's minimum dimensions first; a file can be under 30 KB and still be rejected when its resolution is too low.

Choose an output format the destination accepts. JPG is often suitable for photographs, PNG preserves transparency and sharp edges, and WebP may use fewer bytes where supported. Converting a transparent image to JPG removes transparency. Changing a filename extension alone does not convert the image encoding.

A 30 KB requirement describes file weight, not width or height. It does not mean resizing an image to 30 pixels. Some forms specify both a byte cap and a square or minimum dimension. In that case, use the resize tool for pixels, then check the compressed file against the byte rule.

Batch mode applies the same target to each image, but portraits, screenshots, and transparent graphics can produce different results. Review faces, small text, gradients, and edges in every preview. Process an outlier separately from the untouched original instead of accepting poor quality across the whole batch.

Compression runs in your browser session. After downloading, open the final file and verify its bytes, extension, dimensions, and appearance in the workflow where it will be used. The preview is useful for comparison, but only the receiving service can confirm its own validation rules.

Keep the original image when testing another format or target. Recompressing an already compressed copy can add artifacts without a useful size reduction. A repeatable workflow records the destination limit, output format and display dimensions so the next export starts from the right source.