Free Image Converter - JPG, PNG to WebP
Image Converter is a free online tool that converts JPG, PNG, GIF, BMP and WebP images to WebP, JPEG or PNG right in your browser. Batch-convert up to 20 files at once with a quality slider, no account, no watermark and no daily caps.
Key takeaways
- Converts JPG, PNG, GIF, BMP and WebP to WebP, JPEG or PNG, up to 20 files at a time.
- WebP output is typically 25-35% smaller than the same JPEG and supports transparency.
- 100% private: conversion runs in your browser via the Canvas API, nothing is uploaded.
- Free forever with no signup, no watermark and no daily limits.
Drop images here or click to browse
JPG, PNG, GIF (first frame), BMP, WebP · up to 20 files at once · processed locally
Tip: "Download all" triggers one download per file - your browser may ask permission for multiple downloads once.
How does this free image converter work?
Drop up to 20 images into the tool, pick an output format such as WebP, JPEG or PNG, and set the quality slider. Your browser decodes each image with the Canvas API and re-encodes it locally, then you download the converted files individually or all at once with one click.
Nothing is uploaded to any server, so your images stay private and there are no queues or file caps from us. GIF input converts as its first frame only, since animation cannot be preserved, and HEIC or AVIF files are not supported because browsers cannot decode them reliably.
Should I convert my images to WebP or keep JPEG?
Choose WebP when file size matters, for example on websites, because it is typically 25-35% smaller than a JPEG of the same visual quality and it supports transparency. Keep JPEG for maximum compatibility with older apps, printers and upload forms that may reject WebP files.
Pick PNG when you need lossless quality, such as screenshots with text or graphics with sharp edges. Note that converting to JPEG flattens transparent areas to white, since the JPEG format has no alpha channel, while PNG to WebP keeps transparency intact.
How do I convert images to WebP?
- Drop your JPG, PNG, GIF, BMP or WebP files into the dropzone, up to 20 at once.
- Choose the output format (WebP for smallest size, JPEG for compatibility, PNG for lossless) and set the quality slider.
- Click Convert all and wait a few seconds while your browser encodes each file locally.
- Download the converted images one by one, or use Download all to grab everything at once.
Frequently asked questions
Is this image converter really free and unlimited?
Yes. No signup, no watermark, no daily caps, no locked features. It runs entirely in your browser with the HTML canvas API, so there is no server cost to throttle you on.
Are my images uploaded to a server?
No. Conversion happens locally on your device via your browser. Your images never leave your computer - they can't be stored, viewed, or leaked by us.
Which formats are supported?
Input: JPG/JPEG, PNG, GIF (first frame only - animation is not preserved), BMP, WebP.
Output: WebP, JPEG, PNG. HEIC/AVIF input is not supported because browsers can't decode those formats reliably.
Why convert to WebP?
WebP files are typically 25–35% smaller than equivalent-quality JPEGs, and unlike JPEG they support transparency. Smaller images mean faster websites and less storage.
What does the quality slider do?
It controls compression for lossy formats (WebP, JPEG). 80% is a great default - visually near-identical to the original at a fraction of the size. Lower values shrink files further with visible quality loss. PNG output is lossless, so the slider doesn't apply.
Is transparency preserved?
PNG → WebP keeps transparency. Converting to JPEG flattens transparent areas to white, since JPEG has no alpha channel.