Free
$0
- 100% local compression, no image uploads
- Up to 50 images per batch
- Keeps nested folder structure in the ZIP
Swiftiny
Compress PNG images online, privately on your device
Drop PNG files or folders into Swiftiny. Compression runs in your browser with no upload queue. Keep nested folders in the ZIP, then download smaller PNGs — or convert them to JPG or WebP.
Why compress PNG herePNG exports from design tools are often far larger than they need to be. Swiftiny shrinks them locally so product shots, UI assets, and screenshots stay sharp without leaving your computer.
Drop images or folders here
Supports PNG, JPG, WebP, and AVIF. You can choose files or folders, and folder paths are kept in the zip.
Selected0 image(s)
Original size0 B
Output size0 B
Savings0%
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.
Compression settings
A local PNG compressor for batches, not one file at a time
Most “compress PNG online” tools upload every file to a server. That adds wait time and is a poor fit for unreleased product shots or client work. Swiftiny decodes and encodes PNG in the browser, so the originals never leave your device.
You can drop a single PNG or a nested folder of assets. After compression, the download ZIP mirrors the original directory tree — useful when a landing page or app still expects the same paths.
Free use covers up to 50 images per batch. Swiftiny Pro is a one-time license if you regularly compress larger PNG sets. There is no file-size upload cap, because nothing is uploaded.
Frequently Asked Questions
Does this PNG compressor upload my files?
No. PNG compression runs entirely in your browser. Swiftiny does not send your images to a server.
Can I compress many PNG files at once?
Yes. Drop multiple PNGs or a folder. The free plan processes up to 50 images per batch; Pro removes that limit.
Will the PNG still look sharp?
Standard mode balances size and quality. Deep mode spends more time reducing size further. You can also convert PNG to WebP or JPG when a smaller format is acceptable.
Pricing
Free to try. Pro when batches get big.
Compression still happens on your device. Pay once for unlimited images per batch — Creem handles checkout, cards, and tax.