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IMAGES LAB

Images Lab

High-performance image processing terminal. 100% client-side, ultra-secure, and optimized for speed.

Secure TerminalLossless EngineV3 Architecture

Free Online Image Compressor & Converter | PNG, JPG, WebP, AVIF

Uploading personal photos or company graphics to online compressor sites can risk your privacy. RexaKit Images Lab converts and compresses images entirely inside your browser without uploading anything to a server.

Convert easily between PNG, JPG, WebP, AVIF, BMP, and GIF formats while controlling output quality. Our Target Size tool automatically reduces your image to fit specific file size requirements (like Under 200 KB for government forms or web pages).

Use the interactive Before/After split slider to inspect picture quality, check size reductions, and download optimized files without watermarks.

Key Benefits

Target Size Compression

Set an exact target size (e.g. 150 KB) and the tool optimizes the image to fit.

Convert Multiple Formats

Switch easily between PNG, JPG, WebP, AVIF, BMP, and GIF formats.

Before & After Split View

Compare image quality side by side before downloading your file.

Fast Local Processing

Converts images in milliseconds using your browser with zero upload lag.

100% Private (Zero Uploads)

Your photos and graphic assets never leave your computer.

No Watermarks

Download high-quality images with zero watermarks, stamps, or fees.

Common Use Cases

Faster Website Images

Convert heavy PNGs to lightweight WebP or AVIF to make websites load faster.

Job Applications & Forms

Compress ID cards, signatures, and passport photos to meet strict file size caps.

Social Media Graphics

Optimize high-res banners and promotional graphics for quick sharing.

Format Switching

Quickly convert new image formats like WebP or AVIF back to standard JPG or PNG.

Frequently Asked Questions

No. All image resizing, conversion, and compression happen directly inside your web browser. No image data is ever uploaded.