FIT A FILE LIMIT
Compress an Image to 300KB
Make a JPG for a 300KB upload allowance with the limit preselected. Check measured bytes, retained dimensions, and visual detail in the downloaded image.
Drop your images here
or choose them from your device
HEIC, HEIF, JPG, PNG & WebP · up to 20 files
25MB per file · 100MB per batch · 24MP per image
Your files
From your file to a file that fits.
- Read the destination’s format and size requirements, then select your original image.
- Keep Under 300KB selected. Set a maximum width only when your destination also asks for one.
- Compare the final dimensions and downloaded detail with your original; each successful file is below 300,000 bytes.
300KB gives more room than 200KB when your destination permits it, but texture and noise still cost bytes. Start from the original rather than recompressing a previously downsized 100KB copy; a larger budget cannot recover discarded detail.
A few useful answers
Should I choose 200KB or 300KB?
Use the largest limit your destination accepts. The extra 100,000-byte allowance can help retain detail, but the image content determines the result and there is no guaranteed quality increase.
Can a 300KB JPG be bigger than the source?
Yes. Converting an efficiently stored HEIC or WebP into JPG can increase file size. This workflow enforces a maximum; it does not promise every output will be smaller than its input.
Why is my downloaded file well below 300KB?
The cap is a ceiling, not an exact target. The search can settle on a smaller result, and no padding is added. Success requires fewer than 300,000 bytes for each image; a batch ZIP may be larger.
What if my destination requires PNG?
Selecting PNG turns the byte cap off. JPG is the preselected format for this workflow; do not assume a PNG result satisfies the same size limit.
What are the file limits?
Up to 20 files, 25MB each, 100MB combined, and 24 megapixels per image. Some devices may need smaller batches. If a photo is too large, export a smaller copy first.