How many bytes are 200KB?
This tool calculates 1 KB as 1,000 bytes. 100KB is 100,000 bytes, 200KB is 200,000 bytes, and 500KB is 500,000 bytes. 1 KiB is 1,024 bytes, and upload services may use KB notation as a different standard. If the limit is strictly required or you are concerned about errors, leave some room for the 200KB limit, such as 195KB, and check the submission destination's instructions.
Capacity conditions and image specifications are separate. Even if it is less than 200KB, the upload may be rejected if it does not meet the minimum width and height size, acceptable format, and ratio conditions.
Reducing photo size and batch download order
- Select 1 to 20 PNG, JPEG, or WebP files. Each file must be 20 MiB, and the total must be 100 MiB or less.
- Enter the target capacity per file or press the 100KB, 200KB, or 500KB buttons.
- Select JPEG or WebP as permitted by the submission source. If you need transparency, compare WebP.
- Check the preview, starting with a starting quality of 85, a minimum quality of 50, and a maximum long side of 2048px. If there are a lot of letters and lines, it is better to increase the minimum quality.
- Check the conversion result for the number of bytes, pixel size, and quality values used. Only goal completion files are included in the ZIP.
Since the file name is preceded by a sequential number, originals with the same name will not overwrite each other in the ZIP. ZIP is used to bundle already compressed image files, and bundling does not further reduce the picture quality or file size of the photos.
Difference between reducing quality and reducing pixel size
Quality is the setting value passed to the JPEG·WebP encoder. 85 does not guarantee 85% of the original image quality. If you lower the quality, edges may become blurred or blocks or smears may appear. Reducing the horizontal and vertical size may reduce the total number of pixels and cause small letters or details to disappear.
The maximum long side setting always applies. Even if you turn off additional reduction, if the original is larger than this value, it will be reduced at first. Keeping the maximum long side, we check the starting quality down by up to 5 to the minimum quality, and if still over target, reduce the long side by about 80% and try again. Minimum long side is 64px, maximum is searched in 12 steps, and the best result among all possible combinations is not guaranteed.
Increasing the minimum quality and turning off extra reduction may prioritize sharpness, but also increases the likelihood of not reaching the target capacity. If the result is blurry, first increase the target capacity, or use a photo editor to crop out the surrounding areas that are not needed for submission and then process again.
Restrictions and personal information to check before downloading
The file will be processed by the browser on the current device. This tool does not upload your original photos to the server for compression. Many files or large resolutions use up your device's memory and processing time, so start small on mobile. Pressing Stop or Reset also clears the results on the screen.
In JPEG, transparent areas are filled with white. WebP supports transparency, but your submission may not allow it. HEIC·SVG·GIF input, original EXIF and animation preservation are not supported. Keep the original separate and zoom in to see the results. Due to encoder differences between browsers, the number of bytes resulting from the same settings may vary.
Frequently Asked Questions
Is it stored exactly in 200KB?
No. Aim for no more than 200,000 bytes and don't pack them to exactly the same size. Due to set limits, the screen will indicate if the goal is exceeded.
Even if I have a failed image, can I still get the rest?
Yes. It shows the processing results for each file and only files that achieved the goal are included in the ZIP. Results for exceeding goals can be found in individual links indicated separately.