Free Online Image Compressor: Batch JPG, PNG, WebP & ZIP Export
Batch compress photos and graphics directly in your browser with 100% privacy. Features an interactive before-and-after curtain comparison slider, custom quality adjustments, pixel resizing, and one-click ZIP packaging.
Batch Compression Engine Powered by HTML5 Canvas
Whether preparing product catalogs for e-commerce, optimizing web assets for Google PageSpeed Insights, or reducing smartphone photo storage, TableView provides an instant batch image optimization workstation. Drag and drop dozens of JPEG, PNG, or WebP files simultaneously; our canvas engine processes them in parallel directly in browser memory without sending a single pixel across the internet.
Format Comparison: WebP vs. JPEG vs. PNG
| Format | Recommended Use Cases | Typical Size Savings | Transparency Support |
|---|---|---|---|
| WebP (Recommended) | Modern websites, mobile apps, e-commerce stores | 30% – 80% smaller than original | Yes (Full Alpha Channel) |
| JPEG (.jpg) | Photographs, legacy platforms, email newsletters | 40% – 70% reduction | No |
| PNG (.png) | Logos, icons, UI screenshots with text | 20% – 45% lossless optimization | Yes (Full Alpha Channel) |
Visual Curtain Split-Screen Inspection
Lossy compression algorithms can introduce micro-artifacts, blurry edges, or banding in gradients. TableView includes an interactive horizontal curtain slider allowing you to scrub across the image at 100% zoom. Inspect pixels, text edges, and fine gradients before deciding to download.
Frequently Asked Questions
How does batch image compression work in TableView?
TableView uses high-performance HTML5 Canvas rendering and browser-native image codecs. You can drag and drop dozens of JPEG, PNG, or WebP images at once; each image is processed concurrently in browser memory, with real-time compression ratio calculation and a 1-click ZIP export.
How does the interactive before-and-after curtain slider help evaluate quality?
The visual curtain comparison slider lets you scrub horizontally across the image to compare the original uncompressed source directly against the compressed result. This allows you to verify that text remains crisp and details are preserved without compression artifacts before downloading.
Which format should I choose: WebP, JPEG, or PNG?
WebP provides superior compression efficiency, yielding 25%–35% smaller file sizes than JPEG at equivalent visual quality while supporting transparency. JPEG is best for universal compatibility across legacy platforms, and PNG is recommended for graphics with sharp geometric edges, logos, and alpha transparency.
Are my images uploaded to any cloud server or stored online?
Never. All image rendering, downscaling, compression, and ZIP packaging take place strictly within your local browser sandbox. No image data or metadata is ever sent to any remote server or third party.
Can I resize image dimensions in pixels during compression?
Yes. You can preserve the original aspect ratio while capping maximum dimensions to presets such as 1920px (Full HD), 1280px (HD), 800px (Web standard), or keeping original dimensions.