Images

Umbra's Images tool converts, resizes, and compresses PNG, JPEG, WebP, and AVIF files — entirely offline.

Drop one or several images to convert them to your target format, resize them with a locked aspect ratio, and adjust quality with a live before/after comparison — including a background color for formats without transparency. Batch conversions show progress per file, not one spinner for the whole queue.

FAQ

• Why not convert images with a free online converter?

  An image can carry as much personal information as a document; uploading it just to change a file extension means trusting a server with all of that.

• Can I convert several images at once?

  Yes — drop as many as you like; each file's progress is shown individually.

• Can it convert images to AVIF or WebP, not just PNG and JPEG?

  Yes — DevUtils has no general image converter, and DevToys' image tool is currently PNG/JPEG only (AVIF/WebP support is an open feature request as of this writing). Umbra converts to PNG, JPEG, WebP, or AVIF today.