Image Tools
Image Converter

Convert JPG to BMP Under 20KB — Free Online

Converting a JPG file to BMP can significantly change its file size. BMP is an uncompressed format — files are large, so BMP is rarely used for the web. Use the free image converter below, then compress the result if it's still over 20KB.

Quick Reference

Target formatBMP
Target sizeUnder 20KB
Typical approachConvert, then reduce quality with the compressor

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100% browser-based — your image is never uploaded to a server.

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Frequently Asked Questions

How do I convert JPG to BMP and keep it under 20KB?+
Convert your JPG file to BMP using the free converter, then check the resulting file size. If it's still above 20KB, run it through the image compressor and lower the quality slider until it fits.
Does converting to BMP always reduce file size?+
Not always — it depends on the image content. BMP is an uncompressed format — files are large, so BMP is rarely used for the web. For the smallest reliable file size, combine format conversion with the compressor's quality slider.
Is this tool really free with no upload limits?+
Yes. Conversion and compression both run entirely in your browser using the Canvas API — no files are uploaded to a server, so there are no size limits or sign-up requirements.

Related Guide

How to Convert Image Formats Online

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