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Bulk image compressor. Shrink JPG, PNG, WebP, and AVIF files locally in your browser. No uploads, no signups.
Quick start
You have 48 product photos from a Shopify export averaging 2.4 MB each (115 MB total). Your mobile product page must stay under 1.5 MB total image weight to pass Core Web Vitals.
Step 1
Drop your images
Drag a folder or multi-select files. PNG, JPEG, WebP, AVIF, GIF, BMP, and TIFF are supported.
Step 2
Pick a quality target
Start at 82% for photos and 90% for graphics with text. Use lossless mode only when pixels must stay bit-identical.
Step 3
Preview one file first
Open the before/after preview at 100% zoom on a detail area (text edge, hair, logo stroke) before batch export.
Step 4
Run batch compress
Apply the same setting to the full queue. Processing runs locally — speed depends on your CPU, not upload bandwidth.
Step 5
Download and verify
Export as ZIP, spot-check 2–3 files, then optionally run winners through WebP conversion for another 25–35% savings.
Expected results: Typical ecommerce JPEGs at 82% quality shrink 60–85% with no visible loss on product shots. A 48-image batch often drops from ~100 MB to ~12–18 MB in under two minutes on a modern laptop.
💡 Recommended: 20-100 files for best performance
Upload Files
Drag & drop files here, or click to select
Drag & drop images here
Supported: PNG, JPG, WebP, AVIF, GIF, BMP, TIFF, ICO, HEIC
The Bulk Image Compressor is built for high-performance workflows where maintaining visual integrity is critical. By combining advanced perceptual quantization with local WebAssembly processing, we deliver maximum byte savings without the risk of cloud data exposure.
A typical Shopify export might include 40–60 JPEGs at 1.5–3 MB each. Compressing at 82% quality usually cuts total page weight by 70%+ while keeping fabric texture and label text sharp — without uploading inventory photos to a third-party server.
Most online compressors save your images to their servers. Shrinkify never sees your data. All logic runs on your device's memory, ensuring your private photos stay private.
After compression, modernize assets with our WebP Converter or AVIF Creator for another 25–50% savings on web delivery.
Start at 80–85% for JPEG product shots. Run one file through the preview at 100% zoom — if label text and fabric weave stay crisp, apply the same setting to the batch. Logos and UI screenshots on PNG often need 90% or lossless mode.
Use our 'Smart Compression' at 80% quality. For web images, this typically yields a 70-90% size reduction while remaining indistinguishable from the original to the human eye.
Shrinkify runs entirely as a 'Static Browser-Side App'. This means simply opening the page makes it a local tool. No data is ever transmitted to 'Shrinkify' servers, meeting the highest security requirements for enterprise and government use.
Because we process locally, the only limit is your device's RAM. We've successfully batch-compressed 100+ high-res raw images (10MB+ each) on standard laptops without crashes.
Resize first, then compress. Downsampling removes pixels that would otherwise be encoded anyway, so you get smaller files and faster batch times. Use the Resize tool, then run outputs through this compressor.
Check out our technical guides to learn more about how browser-side processing works.
Read Glossary