Swiftiny
Batch-compress PNG, JPG, and WebP with high visual quality locally
Drop in multiple images or folders. Works 100% client-side for absolute privacy. Keep exact folder structures inside your downloaded ZIP file with no queues.
Drop images or folders here
Supports PNG, JPG, and WebP. You can choose files or folders, and folder paths are kept in the zip.
Select or drop multiple images, then start compression. By default, the tool aims to reduce size while preserving visual quality, and you can compare sizes after processing.
Smaller files, clear visuals, private processing
Design exports, product photos, and article images often need quick optimization. Swiftiny focuses on making batches noticeably smaller while preserving a polished look, without upload queues or sending sensitive files away.
Frequently Asked Questions
Is Swiftiny really 100% private and offline?
Yes! Swiftiny performs all image compression completely client-side in your browser. Your images are never uploaded to any server, meaning absolute privacy and instant local processing.
How does the folder structure preservation work?
When you drag and drop nested folders of images, Swiftiny reads the directory hierarchy using the browser's Directory Reader API. After compressing the images, it packages them into a ZIP archive that perfectly replicates your original folder structure.
What is the difference between Standard and Deep compression modes?
Standard mode balances speed and quality for everyday optimization. Deep mode applies stronger analysis to reduce file size further while keeping the output clean and sharp.
Is there a limit on the number of images or file sizes?
No! Since all compression happens locally on your own device, there are no bandwidth restrictions, upload queues, or file size limits. You can process hundreds of images at once completely free.