What “online” does and does not mean here
- You need a modern browser and a network connection to load the site (and to check a paid license, if you use batch or layer export).
- You do not need a network connection for the bytes of the PSD to be sent anywhere. The file is read locally.
- If you work on confidential comps, storyboards, or client files that should not sit on a conversion server, this is the reason to use a client-side tool.
Upload-based services can still be a better fit when you want server-side rendering that is closer to Photoshop, very large files that do not fit in browser memory, or many formats besides PNG and JPG. See the honest comparison on Convert a PSD without Photoshop.
Free and paid
One flattened PNG or JPG under the size cap is free. Online batch jobs and extracting every layer to a ZIP are paid. Full numbers: Pricing.
Questions
How can an online tool convert without uploading?
The page ships a PSD parser and a PNG encoder written in JavaScript. Your browser reads the file from disk into memory, converts it in a background thread, and saves the result. The server only delivers the page itself.
Does anything get sent to Layerzip?
Not the file. If you use a paid feature, the license key is checked with our server. The PSD, the preview and the PNG never leave the tab. See the Privacy Policy.
Does it work offline?
Not reliably. The page needs a connection to load, and paid features need one to check your key. Once loaded, free conversion does not depend on the network.
When is an upload-based converter the better choice?
When the file is too large for browser memory, or you need formats other than PNG and JPG. The trade-off is that a third party processes your file. See Convert a PSD without Photoshop.