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Image Tools · Updated October 17, 2026

JPG to WebP Converter

You can convert JPG photos to WebP in your browser for free. Choose a quality level, convert up to 20 photos at once, and download WebP files that are usually much smaller than the original JPGs.

Runs in your browserFree · No sign-up · No watermark
JPGWebPRuns in your browser
Loading the tool…

Everything runs locally in this tab. No file is uploaded while the tool loads.

This tool runs in your tab. Nothing is uploaded and no copy is stored.

How files are handled

At a glance

Formats
JPG → WebP
Processing
In your browser
Max size
Up to 50 MB per image
Price
Free, no account
Updated
October 17, 2026
All Image Tools

About JPG to WebP

WebP is the image format modern websites expect. It supports lossy and lossless compression, keeps transparency, and usually produces a smaller file than JPG at the same visual quality. If you run a site or hand images to a developer, WebP is often the difference between a page that loads quickly and one that does not.

The conversion runs through the canvas encoder built into your browser. You set the WebP quality, choose one or more JPGs, and the tool writes a WebP at the same pixel dimensions. If the browser cannot encode WebP at all, the tool says so instead of quietly producing a PNG with the wrong extension.

What this tool does

The details that matter when you use JPG to WebP for real work.

  • Quality control

    Set WebP quality from 5 to 100 and see the resulting file size for every image in the batch.

  • Batch conversion

    Convert up to 20 JPGs in one run, each with its own download button and filename.

  • Same pixels, smaller file

    Width and height in pixels stay identical; only the compression and container change.

  • Encoder check

    The tool verifies that the browser really produced WebP and reports an error instead of mislabelling a fallback file.

  • Local processing

    Photos stay on your device; conversion works offline once the page has loaded.

How to use JPG to WebP

No account, no installation — the whole job happens in this browser tab.
  1. 01

    Add JPG files

    Use the picker and select several images at once if you have a batch to convert.

  2. 02

    Set the WebP quality

    80-85 is a good balance for photographs; raise it when the image contains fine detail or text.

  3. 03

    Click Convert to WebP

    Watch the per-file progress as each JPG is decoded and re-encoded.

  4. 04

    Download the WebP files

    Each result row shows the original size and the WebP size so you can see the saving.

Supported formats and limits

Input
JPG
Output
WebP
Processing
Client-side, in your browser. Nothing is uploaded.
Maximum size
Up to 50 MB per image
Requirements
Chrome, Edge, Firefox or Safari on desktop or mobile

Limitations worth knowing

  • Old software and some messaging apps still cannot open WebP files.
  • WebP at the quality settings shown is lossy; keep the original JPGs as your master copies.
  • Animated WebP cannot be produced; only still images are written.

Privacy and file handling

Conversion runs entirely in your browser. Your JPG files are decoded and re-encoded on your own device, never uploaded to FormatFlow, and no copy is kept after you close the page.

Read the full privacy policy

JPG to WebP FAQ

Short, direct answers to the questions people ask before using this tool.
How much smaller is WebP than JPG?
It depends on the image. At comparable visual quality, WebP usually produces files 20-50% smaller than JPG for photographs and much smaller for flat graphics with few colours. The result list shows the exact original and output sizes for your files.
Which browsers can open WebP files?
Chrome, Edge, Firefox, Safari 14 and later, and all current mobile browsers support WebP. Very old software and some desktop apps still cannot open it, so keep the JPGs if you need to share with unknown tools.
Does the converter keep the image dimensions?
Yes. The WebP has the same width and height in pixels as the JPG. If you also need different dimensions, resize the image first with the image resizer.
Why does the tool say my browser cannot encode WebP?
WebP encoding in the canvas is available in all current browsers but missing from some older ones. When it is unavailable, the tool stops with a clear message rather than saving a file with the wrong format.
Can I convert transparent images to WebP?
Yes, WebP supports an alpha channel, but this particular tool takes JPG input only. Use the PNG to WebP tool for images with transparency.
Is there a limit on how many files I can convert?
Up to 20 files per batch and 50 MB per file. Browser memory is the real limit; a folder of 20 large photos may take a while on a phone.
Are my JPGs uploaded for conversion?
No. The encoding happens in your browser tab and the files are never sent anywhere. The site has no server-side endpoint that accepts image data.
What happens to EXIF data and rotation?
Rotation stored in EXIF is applied so the photo is not sideways, but other EXIF fields such as camera details, capture date and GPS are dropped in the re-encode.

Background reading

Format guides that explain the trade-offs behind JPG to WebP.