Image Compressor

Batch compression utility & analytics engine

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Drop images or folders here
Supports recursive subfolders, JPG, PNG, WEBP, BMP, and clipboard paste (Ctrl+V).
100% Private & Zero Server Storage: Your photos never leave your device. All compression runs locally in your browser.

Batch Compress Images Under 500 KB — Fast, Free & 100% Private

Government portals, university admissions, immigration agencies, and job recruitment platforms frequently reject image uploads exceeding strict file size limits like 500 KB, 200 KB, or 100 KB. Smart Image Compressor is designed specifically to eliminate this frustration by iteratively shrinking JPG, PNG, WebP, and AVIF photos strictly below your required byte ceiling without blurring text, signatures, or facial features.

100% In-Browser Privacy

Unlike cloud converters that transmit your files across the internet, all processing runs locally inside your browser using HTML5 Canvas. Your scans, IDs, and certificates never touch an external server.

Guaranteed Size Ceiling

Our binary-search compression algorithm precisely calibrates quality and dimensional scaling to guarantee every output file stays strictly under your target limit (such as 500 KB or 200 KB).

Package into Single PDF

Stitch all compressed certificates, transcripts, and application pages into a single multi-page PDF document optimized for portal submission with a single click.

How to Compress Images in 3 Simple Steps

01

Drop or Select Photos

Drag and drop multiple images or entire folders into the dropzone. Supports JPG, PNG, WebP, BMP, and clipboard pasting (Ctrl+V).

02

Choose Size & Settings

Select a quick profile (e.g. Standard 500 KB, Gov Portal 200 KB, Passport 100 KB) or adjust dimensions, watermark, and format conversion in the controls panel.

03

Convert & Download

Click "Convert Images" to run the compression. Download individual optimized files, export everything in a ZIP archive, or generate an A4 PDF document.

Frequently Asked Questions (FAQ)

How do I compress an image strictly under 500 KB or 200 KB?
Drag and drop your photos into the dropzone, select your target size limit in the sidebar (such as 500 KB or 200 KB), and click "Convert Images". The algorithm tests multiple compression passes to ensure the result is strictly below your specified threshold with maximum visual sharpness.
Are my images or documents uploaded to any remote server?
No. All compression, image cropping, and PDF compilation occurs 100% locally in your web browser using HTML5 Canvas and Web Workers. Your personal documents, certificates, and ID photos never leave your device.
Which image formats can I compress?
Smart Image Compressor supports JPG, JPEG, PNG (with full alpha transparency retention), WebP, AVIF, BMP, TIFF, and JFIF files. You can convert between formats or keep native file extensions automatically.
Can I crop images to passport and visa photo dimensions?
Yes. Click the Crop icon next to any queued image in your table to open the interactive canvas cropper. You can select standard 1:1 (US Visa) or 35×45 mm (International Passport / Schengen) ratios, rotate 90°, or apply custom crop boundaries.
Can I combine multiple compressed images into a single PDF?
Yes. After converting your images, click "Export as PDF". The app packages all images in your queue into a single optimized multi-page PDF document under your chosen file size limit.