Full-Res Photo Downloader by Midnightstudio

Most "download all images" extensions grab whatever thumbnail the page happens to show — cropped, low-res, or the wrong format. This one scans for the actual highest-resolution version of every image on the page, then lets you batch-download, convert, and organize them with almost no permissions.

Finds the real image, not the thumbnail
Checks srcset, common lazy-load attributes (data-src, data-original, …), <picture><source>, and CSS background-image — picks the highest-resolution candidate it can find, not just whatever's currently rendered.

WebP / AVIF → JPG / PNG, done locally
One click converts formats a lot of other software still can't open, right in your browser. No upload, no server round-trip.

Batch download, with or without a ZIP
Filter by minimum size and file type, select what you want, download individually or bundle into a ZIP (built in-browser, no third-party library).

Folders that actually make sense
Files are organized by the site and the specific post/page you scanned, not dumped flat into Downloads. Different posts on the same site land in different folders automatically.

Know where every file came from
Every download batch includes a small JSON ml image URL and the page it was scanned from.

Instagram support
Automatically steps through multi-image carousels to grab every slide, and organizes downloads by account username and
post.

Privacy by design
A plain download needs zero extra permissions — same browser API as right-click → Save Image. Format conversion or ZIP bundling are the only actions that ever rejust the domains involved, requested onlywhen you click Download. No data ever leaves your machine.