Free Image Compressor & Converter: 100% Browser-Based

1. Drag and drop your images into the tool or click "Select Files."
2. Adjust the quality slider to balance file size and visual clarity
3. Click "Recompress All" to process every image at once
4. Download files individually or save them all as a ZIP archive. The entire workflow takes seconds and requires zero technical knowledge

Compress up to 20 images simultaneously with real-time before-and-after previews. Convert between 10+ formats including HEIC, AVIF, and ICO. Fine-tune output quality from 1% to 100% with a single slider. Batch download as a ZIP file. Available in 18 languages with full RTL support. No account, no watermark, no limits — just fast, private image compression.

Most online compressors upload your files to remote servers, exposing your images to third parties. Equalza processes everything 100% in your browser using the Canvas API and Web Workers. Your files never leave your device. There is no registration, no email required, and no daily usage cap. It is genuinely free forever — not a trial, not a freemium upsell.

Lossy compression (JPEG, WebP) discards some pixel data to achieve dramatic file size reductions — often 60-80% smaller with virtually no visible difference. Lossless compression (PNG, GIF) reduces size without removing any data, ideal for graphics with text or sharp edges. Equalza lets you control the trade-off with an intuitive quality slider so you always get the result you need.

Compress: JPEG, PNG, WebP, GIF, and SVG. Convert from/to: HEIC (iPhone photos), BMP, TIFF, AVIF, and ICO. WebP delivers 25-35% smaller files than JPEG at equivalent quality, making it the best choice for websites. Use PNG for logos and graphics that need transparency. Convert HEIC to JPEG for universal compatibility across all devices and platforms.

Start at 80% quality — it delivers significant size savings with no perceptible loss for most photos. Use WebP for web content to maximize page speed scores. Keep original files as backups before compressing. For e-commerce product images, 75-85% JPEG quality balances fast loading with sharp detail. Batch-process entire folders to save time. Always test compressed images at their display size, not zoomed to 100%.