Skip to content

Bulk Image Converter

Bulk-convert images to WebP, AVIF, JPG or PNG — no upload required. Convert a whole batch at once, privately.

Convert an image online free between WebP, AVIF, JPG and PNG, a whole batch at once. Drop in your files, pick the output format, set the quality for lossy formats, and download. It works as an image converter for turning photos into modern WebP or AVIF, or back to JPG and PNG for compatibility. Everything runs in your browser, nothing uploaded.

Read the guide: How to Convert Images to WebP and AVIF

Drop images here

PNG, JPG, WebP, AVIF or GIF — processed privately on your device

Convert to

How it works

  1. 1

    Add images

    Drop in JPG, PNG, WebP, AVIF or GIF files.

  2. 2

    Pick a format

    Choose WebP, AVIF, JPG or PNG and set the quality for lossy formats.

  3. 3

    Download

    Save one image or the whole batch as a zip. Files are never uploaded — everything happens locally.

Instant & 100% private — nothing is uploaded

Your images are processed instantly on your own device and are never sent to a server — so there are no upload waits, no size limits from us, and no copies kept anywhere.

Frequently asked questions

Does AVIF conversion work in every browser?
Yes. AVIF output works the same in every modern browser — not just the ones with native AVIF export.
WebP vs AVIF — which should I choose?
AVIF usually produces the smallest files at the same quality, but encodes more slowly. WebP is the fast, safe all-round choice with universal support.
Is conversion lossless?
PNG output is lossless. WebP, AVIF and JPG are lossy and use the quality slider; set it to 90+ for near-lossless results.
Are my files uploaded?
No. Conversion happens locally in your browser. Nothing is sent to a server.

More tools

Bulk Image CompressorBulk-shrink JPG, PNG and WebP — many images at once.Bulk Image ResizerBulk resize by pixels or percent with one-click presets.Image CropperCrop to any size or a fixed aspect ratio, with live zoom.Bulk Background RemoverBulk-erase backgrounds with AI that runs on your device.Bulk GIF Background RemoverMake a GIF background transparent (or recolor it) — many GIFs at once.Auto Face BlurAuto-detect and blur every face in a photo to protect privacy.

More from the Hivly network

Free sister tools on our other sites.

Color Palette GeneratorShuffle palettes with the spacebar, lock favourites, copy hex codes.Merge PDFCombine many PDFs into one — drag to reorder, then download.EXIF Viewer & RemoverSee a photo’s EXIF data (camera, GPS, date), then strip it out.