ImageForge — Free Private Image Compression for WebP, AVIF, JPEG & PNG
ImageForge is a free online image compressor and converter that runs entirely in your browser. Compress, convert and resize images in bulk — no uploads, no accounts, no tracking. Everything is processed locally with WebAssembly, so an entire batch of up to 200 images never leaves your device.
Why compress images?
Unoptimized images are the largest content type on most pages and the most common cause of slow Core Web Vitals. Converting a 2 MB JPEG to WebP at quality 80 typically yields a 400–600 KB file — a 70%+ reduction in bytes with no visible quality loss. Smaller files mean faster LCP, better crawl coverage, higher mobile rankings and less bandwidth cost.
What ImageForge does
- Batch compression — up to 200 images at once, with a one-click ZIP download of the whole set.
- Every modern format — AVIF, WebP, JPEG and PNG, with conversion between them and an Auto-Pick mode that picks the smallest format per image.
- Smart presets — Web, Email, Social, Print and Max Quality, plus per-image overrides for full control.
- Before & after comparison — a draggable slider to verify quality at any zoom level before you commit.
- Resize & crop — set a maximum dimension and let the tool scale proportionally. See the image resizer and image converter guides.
- 100% private — files never leave your device; processing runs locally via WebAssembly. Nothing is uploaded, stored or analysed.
Compress your images in four steps
- Drop your files onto the dropzone (or click to browse).
- Choose an output format — WebP for the best all-round result, AVIF for maximum compression.
- Pick a preset or set quality (80 is a reliable default) and a maximum dimension.
- Press compress, compare before & after, then download individually or as a ZIP.
Learn more about image optimization
Open the compression studio above, or drop your images to begin.