Free · Runs in your browser
Convert to WebP in bulk

A free bulk WebP converter to convert whole folders at once

Drop a folder of JPG or PNG files and this bulk WebP converter will convert to WebP in bulk in seconds. One quality setting applies to every file, and you can download the results one at a time or as a single ZIP. Your pictures never leave your browser — there is no upload and no sign-up.

Drop images here or click to browse

Add as many images as you like — JPG, PNG, WebP, GIF

100% private — your images are processed in your browser and never uploaded.

How to convert to WebP in bulk in three steps

This bulk WebP converter turns a heavy folder of JPG and PNG photos into modern WebP files without installing anything. Everything you need to convert to WebP in bulk happens on this one page, right inside your browser.

  1. 01

    Add your images

    Drag a whole folder onto the bulk WebP converter, or click to browse and pick the files you want to convert to WebP. Add as many images as you like — JPG, PNG, GIF frames, and existing WebP files are all accepted, and nothing is uploaded anywhere.

  2. 02

    Pick a quality level

    WebP is already selected as the output format. Drag the single quality slider to trade a little detail for a lot of weight, and the converter applies that one setting to the whole batch, so you convert to WebP in bulk with consistent results instead of tuning each photo by hand.

  3. 03

    Download your WebP files

    Press process and the tool will convert to WebP in bulk locally, showing the new size and the percentage saved on each file. Download a single result or grab the entire batch as a ZIP — your WebP images are ready to ship.

A bulk WebP converter built to make pages load faster

Stop exporting one photo at a time. Configure the output once, then convert to WebP in bulk so a folder that was tens of megabytes ships as a fraction of the weight.

One setting, every file

Choose the quality once and the bulk WebP converter reuses it across the batch. That is the whole point of a bulk WebP converter: you convert to WebP in bulk with a single decision instead of repeating the same export dozens of times.

JPG, PNG, and GIF in

Mix formats freely. The converter reads JPG, PNG, GIF, and WebP, then writes clean WebP out, so you can convert to WebP in bulk from whatever your camera, your screenshots, or your design tool happened to produce.

Private by design

This bulk WebP converter runs entirely in your browser with the Canvas API. Your images are never uploaded to a server, so you can convert to WebP in bulk even when the files are private, sensitive, or unreleased.

Who needs to convert to WebP every single week

Anyone shipping a lot of pictures wants to convert to WebP in bulk before they go live, because WebP is the image format modern browsers read fastest.

Web & store owners

Convert product photos and hero shots so pages load fast and Core Web Vitals stay green. A bulk WebP converter lets you convert to WebP in bulk for an entire catalog the moment new shots arrive.

Bloggers & marketers

Convert to WebP in bulk before uploading to a CMS so every post stays light. One pass through the bulk WebP converter and a month of screenshots is ready to publish.

Developers & designers

Convert to WebP in bulk to trim app bundles, email assets, and design exports. Keep the originals, ship the WebP copies, and let the converter handle the repetitive part of the job.

Bulk WebP converter questions

More questions? Email us at support@bulkimagen.com

  • A bulk WebP converter changes many pictures into WebP at once instead of one at a time. You add a folder, pick a quality level, and it will convert to WebP in bulk into new files you can download together.
  • Add your files above, leave the output format on WebP, drag the quality slider, and press process. This free bulk WebP converter will convert to WebP in bulk right away and let you download every result as a ZIP.
  • No. This bulk WebP converter works entirely in your browser, so the files you convert never leave your device. That makes it safe to convert to WebP in bulk even when the images are private or unreleased.
  • WebP usually produces smaller files than JPG or PNG at comparable quality, and every current browser supports it. If you convert to WebP in bulk, image-heavy pages get noticeably lighter without any redesign.
  • You can convert JPG, PNG, GIF frames, and existing WebP files. The bulk WebP converter always writes WebP out, so you convert to WebP in bulk no matter what the batch started as.
  • WebP here is lossy, so very low quality settings soften detail. The tool keeps a sensible default and shows the new size on every file, so you can convert to WebP in bulk while keeping quality exactly where you want it.
  • There is no hard cap built into the tool. Because everything runs locally, the practical limit is your device's memory, so you can convert to WebP in bulk in large batches and simply split very big folders if needed.
  • Yes. The bulk WebP converter works in any modern mobile browser, so you can convert to WebP in bulk from a phone or a tablet without installing an app.
  • No sign-up and no install. Open the page, drop your files, and the bulk WebP converter lets you convert to WebP in bulk straight away — it is genuinely free to use.
  • Yes. The converter never overwrites anything on your disk; it creates new WebP copies that you download, so your originals stay exactly as they were while you convert to WebP in bulk.

Need to create images too, not just convert them?

When you are done here, BulkImagen can generate fresh images in bulk from a single prompt with credits — the same batch mindset, applied to AI image generation. Convert what you have, then create what you need.