Image Compressor

Compress JPG, PNG & WebP images to reduce file size.

How to Use Image Compressor

Upload your file: Drag and drop your file into the active processing area above, or click the box to browse your device files.
Configure settings: Select your preferred options (such as target file size in KB, compression level, page order, or output format).
Process locally: Click the primary action button. Your file is rendered and encoded in seconds directly inside your browser memory.
Download output: Click Download to save the modified document back to your device. No watermarks are added.

Zero-Cloud Privacy Guarantee

Unlike legacy web utilities that upload your sensitive documents to remote servers, PDFtiny executes 100% of processing inside your local browser using WebAssembly. Your files never leave your computer, ensuring complete privacy, enterprise compliance, and offline availability.

Technical Specifications

Parameter	Specification
Processing Engine	Client-Side WebAssembly (WASM) & HTML5 File API
Server Transmission	0 Bytes Uploaded (100% Local Browser Memory)
Device Compatibility	Chrome, Safari, Firefox, Edge, Android, iOS, Windows, Mac, Linux
Compliance	ISO 32000-2:2020, GDPR Article 25 (Privacy by Design)

Frequently Asked Questions

Can I compress multiple images at once?

Yes. PDFtiny\

How do I compress an image to exactly 50KB or 100KB?

Use

Does compressing an image permanently damage photo quality?

JPEG compression is lossy by nature, meaning some micro-details are discarded at lower quality levels. However, at 70%–85% quality, the difference is invisible to the human eye. PNG and WebP support lossless compression, so their quality is never degraded.

My compressed image is slightly larger than my target. Why?

Very small images or images that are already heavily compressed may not compress further without severe quality loss. PDFtiny stops when it cannot reduce size further while maintaining minimum visual quality. Try using a PNG-to-JPG conversion for dramatically smaller files.