Use the online PSD viewer workspace
The workspace is a complete PhotoCraft editor, so viewing starts with its File → Open control. Choose your PSD from the local file picker. You do not need a Photoshop installation or an Adobe login to start.
Check the preview against the intended image
Look at the visible layers, text, canvas edges and masks. A missing font or an unsupported effect can change what you see. The original creator’s reference image is useful when exact appearance matters.
Share a PNG rather than a project when appropriate
If the recipient only needs to view the result, use File → Export → Export As to download a PNG. Keep the source PSD separately and check the downloaded image at its actual dimensions.
Leave the source intact
Opening a file for inspection is different from approving an edited copy. If you changed a layer while checking the image, give any saved output a new filename. Keep the source as the comparison point.
Source
Application details: PhotoCraft official application page and version 0.7.0 hosting guide.
Questions, answered.
Does this need Photoshop?
No. The hosted browser application is PhotoCraft, a separate open-source editor.
Is this just a static preview?
No. It is an image editing workspace that can also serve as a viewer. Use a copy if you only want to inspect the document.
What should I send to someone who cannot open PSD?
A PNG is a common flat image handoff. Export it and verify the appearance before sending.