Why Choose JetKB?
100% Private & Secure
All compression happens locally in your web browser. Your images are never uploaded to any external server, guaranteeing total privacy for your sensitive documents.
Exact KB Targeting
Stop guessing with vague "quality" percentages. Tell us exactly how many kilobytes you need (e.g., 50KB or 100KB), and our algorithm does the exact math for you.
Lightning Fast Processing
Utilizing modern Web APIs, JetKB crunches through large, high-resolution image files and bulk uploads in seconds without freezing your device.
Bulk Image Support
Need to compress an entire gallery of photos? Drop multiple JPGs, PNGs, or WEBPs at once and download them neatly packaged in a convenient ZIP file.
How to Compress Image to Exact KB Size?
Upload Images
Drag and drop your JPG, PNG, or WEBP files into the upload area. You can compress a single image or upload in bulk.
Select Target Size
Use the slider or click a preset (e.g., 50KB or 100KB) to set your exact desired file size for the final output.
Download Results
Click compress and download your optimized files instantly. Bulk uploads will automatically generate a convenient ZIP file.
Perfect For Every Requirement
Whether you're applying for a job, submitting official documents, or optimizing a website, JetKB ensures your images are accepted on the first try.
Frequently Asked Questions
Why do I need to reduce image size for online forms?
Many government portals, job applications, and university admissions require passport photos and signatures to be under a strict limit (often 20KB, 50KB, or 100KB) to save server space. JetKB ensures your files meet these strict requirements exactly.
Does JetKB compress images without losing quality?
We use a smart compression algorithm that finds the perfect balance between resolution and file size. While some quality reduction is necessary to drastically drop file sizes, our tool utilizes intelligent downscaling to maintain the best possible visual clarity for your exact KB target.
Can I use this bulk image compressor for free?
Yes! JetKB is entirely free to use directly in your browser. There are no hidden fees, daily limits, watermarks, or registrations required to compress JPG, PNG, or WEBP images.
Which image formats are supported?
We currently support the most popular web formats: JPEG/JPG, PNG, and WEBP. All formats will be aggressively compressed to meet your target KB while trying to preserve their original extension where possible.
Is my data safe? Do you store my images?
100% safe. Your images are never uploaded to our servers. All the processing, resizing, and compression happens locally right inside your own web browser using modern Javascript APIs. Once you close the tab, your data is completely gone.