Bulk Image Converter & Resizer
ProConvert and resize many images at once, then download a ZIP.
Convert and resize a whole batch of images in one go — pick your format, quality, and maximum size, process them all at once, and download everything as a ZIP. Free processes up to 3 images at a time; Pro removes the limit and enables one-click ZIP export. Everything runs in your browser, so your images are never uploaded.
Drag & drop images, or click to browse
Select multiple images — converted in your browser, never uploaded.
Runs entirely in your browser — nothing is uploaded.
How to use the bulk image converter & resizer
- 1Add multiple images.
- 2Choose the output format, quality, and optional max size.
- 3Convert them all and download as a ZIP.
Frequently asked questions
How many images can I convert at once?
The free tier processes up to 3 images per batch. OhoTool Pro removes the limit and adds a one-click ZIP download for the whole batch.
Are my images uploaded?
No — every image is processed locally in your browser using a canvas, so nothing ever leaves your device.
Which formats are supported?
Convert to PNG, JPG, or WebP, with an adjustable quality setting for the lossy formats and an optional maximum width/height.