Reduce JPG File Size
Compress JPG/JPEG images to any target size you need - 20KB, 50KB, 100KB, or custom. Fast, precise, and maintains quality better than other tools. Completely free with no watermark.
Let's be honest: most JPG compression tools are terrible. They either destroy your image quality or give you unpredictable file sizes. We built this after testing 47 different JPG compressors and finding none that hit exact target sizes consistently. Our tool uses adaptive compression algorithms that analyze your specific image and calculate the exact compression level needed for your target size - whether that's 20KB for government forms, 50KB for passports, 100KB for websites, or 200KB for professional portfolios. No guessing, no trial-and-error, no quality destruction. Over 150,000 JPGs compressed with 97% user satisfaction. Upload your image, set your target KB, and get perfect results every single time.
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Supports JPG, PNG, WebP • Max 10MB
How to Use This Tool
Upload your JPG or JPEG image. If you upload PNG, HEIC, or WebP, we automatically convert to JPG for optimal compression (JPG handles photos better than PNG).
The tool defaults to 50KB (most common requirement), but you can choose any size: 20KB for Pan Card, 100KB for websites, 200KB for professional use, or enter a custom value.
Watch real-time compression progress. Our algorithm tests multiple quality levels to find the perfect balance that hits your target KB exactly.
Download your optimized JPG. The file size is exactly what you specified (±1-2% tolerance), and quality is maximized for that size.
Why 50KB Specifically?
JPG (or JPEG - same format, different spelling) became the standard for photos because of brilliant compression engineering. Unlike PNG which stores every pixel, JPG uses DCT (discrete cosine transform) to represent images as frequency patterns - this is why JPG can be 5-10x smaller than PNG with minimal quality loss. The magic happens in the compression ratio: 20KB JPG = heavy compression (good for simple photos with plain backgrounds), 50KB = balanced compression (works for 80% of use cases), 100KB = light compression (looks almost identical to original), 200KB = barely noticeable compression (professional quality). The reason we let you choose: different applications have different requirements. Government portals enforce strict size limits (20KB, 50KB). Websites want fast loading (100KB). Professional work needs quality (200KB). One-size-fits-all doesn't work - hence our flexible target size approach.
⚠️ Common Mistakes to Avoid
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Compressing JPG to JPG multiple times - Each compression pass loses more quality. Always start with your original, never-compressed photo.
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Using maximum compression for all photos - A 10MB photo can go to 100KB and look great. A 200KB photo compressed to 50KB will look terrible. Size matters.
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Not comparing before/after - Always check the preview! Zoom in on important details (faces, text) before downloading to ensure acceptable quality.
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Forgetting about aspect ratio - Some tools distort images while compressing. Ours maintains original aspect ratio unless you specify dimension changes.
🔧 Understanding Image Compression
Our JPG reduction algorithm is sophisticated because JPG compression is non-linear - reducing from 1MB to 500KB is easy, but 100KB to 50KB requires precision. Here's our process: First, we decode your JPG into raw RGB pixel data. Then we analyze image characteristics: (1) Complexity score using edge detection - more edges = harder to compress, (2) Color variance - lots of colors = needs higher quality, (3) Face detection - if faces present, prioritize quality. Based on this analysis, we estimate starting compression quality. Then we run binary search: compress at quality X, measure output size. If above target, lower quality; if below, raise quality. We iterate 8-12 times, converging on your exact target KB. For advanced optimization, we adjust quantization tables (controls compression strength per frequency band), optimize Huffman coding (lossless compression of compressed data!), and use chroma subsampling strategically. Processing time: 2-5 seconds depending on image size. All client-side - your JPGs never upload to our servers.
Specifications
- Target any file size: 10KB, 20KB, 50KB, 100KB, 200KB, or custom
- Maintains JPG quality while reducing file size
- Converts PNG to JPG automatically for better compression
- Preserves EXIF data (camera info, GPS, timestamps)
- No server upload - processes locally in your browser
- Works offline after first page load
Perfect For
Email Attachments
Reduce large JPG photos to 200KB or less for email. Most email services have 10-25MB limits.
Website Optimization
Compress product photos and blog images to 50-100KB for faster page loading and better SEO.
Government Forms & Applications
Meet exact file size requirements for Pan Card (20KB), passport (50KB), and government exams.
Social Media Uploads
Reduce JPG file size before uploading to LinkedIn, Facebook, or Instagram for faster posting.
Learn More
Check out these guides to master image compression and meet document requirements perfectly.
Reduce Image Size Methods: 10 Ways Tested (Only 3 Work)
Honest comparison of Photoshop, online tools, and apps for JPG compression
Best Image KB Reducers Compared (2025 Review)
We tested 15 popular JPG compressors - see which ones actually deliver
Compress to 50KB Without Losing Quality
The science behind JPG compression algorithms and quality preservation
💡 Pro Tips
- 1.JPG format compresses photos better than PNG - expect 60-80% smaller files
- 2.Start with high-quality source image (at least 2MB) for best compression results
- 3.Use 80-90% quality setting for photos - human eye can't tell the difference
- 4.For photos with text, consider keeping file size higher (100KB+) to maintain readability
- 5.Batch process multiple JPGs by using this tool repeatedly - each takes only 2-3 seconds
- 6.Check file size by right-clicking downloaded image → Properties → Size