Bulk Image Compressor
Compress unlimited photos to a Target Size (KB/MB) or by percentage.
Your images are processed in this browser tab and are never uploaded.
Click to Upload
or select an entire folder
0 files selected
Switch to Folder Mode
Best for forms (e.g. "Under 50KB").
Smaller dimensions make small targets reachable while keeping the photo sharp.
Results
Waiting...| File Name | Original | New Size | Saved |
|---|---|---|---|
|
No images compressed yet. |
|||
Total Saved: 0 MB
Reduction: 0%
Common target sizes
Compress Images to 20KB, 50KB, or Any Size
Need to reduce image size for a government application, website, or email attachment? OmniFlowKit allows you to bulk compress images to a specific target size (like 200KB) or by quality percentage.
100% Private & Offline
Your photos never leave your device. All compression happens in your browser using advanced JavaScript libraries.
Folder Support
Select an entire folder of 100+ images. We'll process them one by one and let you download a single ZIP file.
Target Specific Sizes
Perfect for portals that say "Max file size 50KB". Just type "50KB" and we handle the math.
How to Compress a Folder of Images
- Click the Upload Box (or switch to "Folder Mode").
- Select "Target Size" mode if you have a strict limit (e.g., 2MB).
- Enter your limit (e.g., 200 KB).
- Click Compress Now and watch the magic happen.
- Download all compressed images as a convenient ZIP file.
Frequently Asked Questions
Yes! Use the "Target Size" mode, enter "20" and select "KB". The tool will aggressively reduce quality until the file is under 20KB.
Yes. Since it runs on your computer (client-side), you can compress hundreds of images without waiting for server uploads.
Compression always involves some quality trade-off. However, our "Target Size" mode is smart—it only reduces quality as much as necessary to hit your target file size.
Bulk Image Compressor at a glance
- Input
- One image or a whole folder (JPG, PNG, WEBP)
- Modes
- Target size (e.g. under 50KB or 2MB) or quality percentage
- Size control
- Longest side in pixels, so small targets stay sharp
- Output
- Individual files or one ZIP; files still over the target are flagged
- Privacy
- Runs in your browser; images are not uploaded
- Cost
- Free, no sign-up