Bulk Image Compressor to KB or MB
Compress images to KB or MB
Bulk compress JPG, JPEG, PNG and WebP files with quality controls, or choose an exact 10KB to 2MB target preset below. All processing stays local in your browser.
Drop Images Here!
OR
Supports JPG, PNG, WebP, GIF formats, batch processing
(Allow multiple downloads in browser if prompted)
22 functional target-size tools
Compress Images to a Specific KB or MB Size
Choose an exact file-size target for a mixed image batch, or select a JPG/JPEG, PNG or WebP-specific compressor. Each page processes multiple files and aims for the selected maximum size before individual or ZIP download.
Compress any image to a specific KB or MB size
Target-size presets for mixed JPG, JPEG, PNG and WebP batches.
10KB or less
Compress Image to 10KB
Bulk processing + ZIP download
20KB or less
Compress Image to 20KB
Bulk processing + ZIP download
30KB or less
Compress Image to 30KB
Bulk processing + ZIP download
50KB or less
Compress Image to 50KB
Bulk processing + ZIP download
100KB or less
Compress Image to 100KB
Bulk processing + ZIP download
200KB or less
Compress Image to 200KB
Bulk processing + ZIP download
300KB or less
Compress Image to 300KB
Bulk processing + ZIP download
500KB or less
Compress Image to 500KB
Bulk processing + ZIP download
1MB or less
Compress Image to 1MB
Bulk processing + ZIP download
2MB or less
Compress Image to 2MB
Bulk processing + ZIP download
Compress JPG or JPEG images to KB
Format-specific target pages for photographic JPG and JPEG files.
20KB or less
Compress JPG / JPEG to 20KB
Bulk processing + ZIP download
50KB or less
Compress JPG / JPEG to 50KB
Bulk processing + ZIP download
100KB or less
Compress JPG / JPEG to 100KB
Bulk processing + ZIP download
200KB or less
Compress JPG / JPEG to 200KB
Bulk processing + ZIP download
500KB or less
Compress JPG / JPEG to 500KB
Bulk processing + ZIP download
Compress PNG images to KB
Dedicated PNG target-size pages for graphics and transparent images.
Compress WebP images to KB
WebP presets for smaller modern web-image files.
Explore related bulk image tools
Format Conversion
Two-way JPG, PNG and WebP batch converters.
Compress to KB or MB
Target 10KB, 100KB, 500KB, 1MB and more.
Exact Pixel Sizes
Icons, avatars, thumbnails and Full HD presets.
Social Media Sizes
Posts, profiles, stories, covers, ads and banners.
E-commerce Images
Product images for major stores and marketplaces.
Photo & Print Sizes
Application, ID-style, print and A4 dimensions.
Aspect Ratios
1:1, 4:5, 16:9, 9:16 and other common ratios.
Bulk image compressor to KB or MB for JPG, PNG and WebP
This bulk image compressor reduces multiple photos and graphics together for websites, email attachments, forms and shared folders. Use the quality slider for flexible compression, or select a dedicated tool to compress images to 10KB, 20KB, 50KB, 100KB, 200KB, 500KB, 1MB, 2MB or another listed maximum.
The target directory includes mixed-format image compressors plus JPG/JPEG to KB, PNG to KB and WebP to KB pages. JPG and WebP usually create smaller photographic files, while PNG remains useful for transparent graphics. Processing stays in the browser, with individual and ZIP downloads.
Why use this Free Bulk Image Compression Tool
🔒 Private & secure — zero uploads, zero risk
Your images never leave your device. Period. All compression happens right inside your browser using client-side processing — no uploads, no servers, no snooping. Perfect for sensitive photos, business assets, or personal memories you'd rather keep to yourself. What happens on your computer stays on your computer.
🎯 Total control with a slider
Why settle for preset compression levels? Drag the slider anywhere from 1% to 100% and watch the file size update in real time. Need a 1MB photo down to 300KB for email? Just slide until it hits the sweet spot. You decide the balance between file size and quality — no guessing, no re-uploading, no frustration.
🚀 Batch processing done right
Upload a handful of images or dump an entire folder — we handle it. Process 10, 50, or 100+ photos in one go, with the same compression settings applied consistently across the batch. Whether you're prepping product shots for your Shopify store or shrinking vacation photos to share with family, it all happens in seconds.
📦 Download however you want
Single image? Click download. Whole batch? Grab them all individually. Everything at once? Get a tidy ZIP file with one click. We built the download options to match how you actually work — no hunting through menus, no "download all" button that spams your browser with pop-ups.
🆓 Actually free. No asterisks.
No watermarks. No daily limits. No "pro" paywall that unlocks the features you actually need. Unlimited images, unlimited compression sessions, unlimited everything. We believe a basic utility like image compression should just be free — so we made it that way.
💻 Works everywhere, installs nowhere
No software to download, no account to create, no email to hand over. Open the site on Windows, Mac, Chromebook, or even your phone — drag, drop, compress, done. Works offline too once the page loads, because everything runs locally in your browser.
🖼️ Smart compression that keeps quality
Our compression engine re-encodes JPG, PNG and WebP images while removing unnecessary metadata. The result is a smaller file that remains sharp for websites, email and social media.
⏱️ Instant — like, actually instant
No "processing" spinner that spins forever. No waiting for uploads or downloads. Resize and compress happen in milliseconds because it's all happening on your machine. The only bottleneck is your computer's speed — not our servers, not your internet connection.
🌎 Used by creators, sellers, and everyday people
Photographers use it to prep client galleries. E-commerce sellers use it to speed up their storefronts. Social media managers use it to hit platform file size limits without compromising quality. And regular folks use it to email photos without getting that annoying "attachment too large" bounce-back.
🔄 Same batch, multiple tools
Selected a batch of images for compression but also want to resize or convert them? Your files stay loaded as you jump between tools. Compress first, then switch to the resizer — no need to re-upload the same images twice. It's the little things that save you time.
About this Online JPEG/PNG File Size Reducer
BulkPicResizer's Compress Image Tool is a free online bulk image compression tool that shrinks your image file sizes without making you jump through hoops. Think of it as your go-to online JPEG/PNG file size reducer — whether you need to take an image from MB to KB for email attachments or optimize a whole folder for faster web performance. Upload by dragging, dropping, pasting from clipboard, or selecting files manually — we support all the ways you're used to working.
At its core, the tool gives you a simple percentage slider that controls the compression level. Slide left for higher compression (smaller file, lower quality) or right for higher quality (larger file). The estimated output size updates as you slide, so you know exactly what you're getting before you hit download. It's the perfect online JPEG/PNG file size reducer for anyone who needs to go from MB to KB without the headache of complicated software.
Key features:
- ✓ Batch compression: Process multiple images at once with uniform settings.
- ✓ Format support: Optimized for JPG, PNG and WebP images.
- ✓ Flexible download: Download individual images, all images separately, or a single ZIP archive.
- ✓ Zero-upload architecture: 100% client-side processing means total privacy.
- ✓ No registration: Just open the page and start compressing.