Reduce screenshots and transparent images
Convert PNG files to WebP when you need smaller website images while keeping useful visual quality.
Online image format converter for PNG, JPG, WebP, and AVIF
Convert images without sending them to a server. Choose files, pick an output format, adjust quality or size, then download the converted images directly from your browser.
- PNG, JPG, WebP, AVIF
- Batch conversion up to 20 images
- Image files stay in your browser
Popular conversions
Common image format changes handled by the converter
The first release focuses on image formats that modern browsers can process locally. These are the jobs most people need before upload, publishing, or sharing.
Compress photos for web pages
Turn camera or stock JPG files into WebP and compare output size before using them in a page or post.
Make images easier to open elsewhere
Export WebP images as JPG when another app, marketplace, or older workflow does not accept WebP.
Recover a more compatible copy
Convert AVIF images to PNG or JPG when you need broader editor, email, or CMS compatibility.
Remove alpha and make a lighter photo copy
Create JPG output with a white background for images that do not need transparency.
Limit width, height, or scale
Shrink large images before download so the result is easier to upload, attach, or publish.
Process small image sets together
Select up to 20 images, apply one output format, and download each converted file.
Balance size and clarity
Adjust the quality slider for JPG, WebP, and AVIF output, then compare original and converted file sizes.
Processing boundary
Why the first version stays local
A real file converter can become expensive and risky when every format needs server processing. This MVP starts with browser-safe image formats so users can test the product immediately while the backend workflow remains simple.
Image content stays on the device
The browser reads selected files, draws them to a local canvas, and creates downloadable output. The free converter does not upload image content for processing.
Clear limits before heavier formats
PDF, Office, archive, audio, and video conversion need server queues, storage rules, file scanning, and cost control. Those should come after the current product proves demand.
Useful output feedback
Each result shows original size, converted size, dimensions, and whether the output became smaller or larger.
How it works
Convert an image format in three steps
The workflow is designed for quick everyday image conversion: choose files, set output rules, then download the files your browser creates.
- 01
Choose or drop images
Select PNG, JPG, WebP, or AVIF files from your device. The queue shows each file before conversion starts.
- 02
Pick format and size rules
Choose WebP, JPG, PNG, or AVIF output, then adjust quality and optional resize rules for the whole batch.
- 03
Download converted files
Review status, size difference, and dimensions. Download individual files or start downloads for all successful results.
Format guide
Which output format should you choose?
Different formats fit different jobs. The converter lets you test a result quickly, but these rules of thumb help you start with the right target.
| Output | Best for | Trade-off | Transparency |
|---|---|---|---|
| WebP | Website images, screenshots, product photos, and smaller web assets. | Not every older tool accepts WebP, so keep a PNG or JPG copy when compatibility matters. | Supports transparency. |
| JPG | Photos, email attachments, marketplace uploads, and broad compatibility. | Lossy compression can blur sharp text or UI screenshots at low quality. | Does not preserve transparency. |
| PNG | Screenshots, logos, interface captures, and images with sharp edges. | File size can be much larger than WebP or JPG. | Supports transparency. |
| AVIF | High compression for modern browsers and publishing tests. | Encoding support and compatibility depend more on the browser and destination app. | Supports transparency in supported browsers. |
Paid access
Simple pricing while the product is still proving demand
The local image converter is the first useful tool. Paid plans are ready for account access and future larger or server-side workflows after review and rollout.
7-Day Pass
$1.99A small test pass for short projects and early production checks.
Pro Monthly
$5.99A simple monthly option for users who need recurring conversion work.
Pro Annual
$39.99Lower yearly cost for users who keep the tool in their workflow.
Image converter FAQ
Questions about online image format conversion
Direct answers about supported formats, browser processing, batch limits, resizing, and future file formats.
Is File Format Converter free to use?
The homepage image converter is free for practical browser-based PNG, JPG, WebP, and AVIF conversion. Paid plans are reserved for account features and future larger or server-side workflows.
Are my image files uploaded?
No. The current image converter reads and converts selected files inside your browser. Image content is not sent to the File Format Converter backend for the free local conversion flow.
Which image formats can I convert online?
The first version supports PNG, JPG/JPEG, WebP, and AVIF where your browser can decode and encode the selected format. Browser support can vary, especially for AVIF output.
Can I batch convert images online?
Yes. You can select up to 20 images in one local batch, choose one output format, and download the converted results after processing.
Can I resize images while converting?
Yes. You can keep the original dimensions, limit width, limit height, or scale the image by percentage before downloading the converted file.
Why did my converted file become larger?
Some conversions increase file size, especially PNG output or high-quality JPG/WebP settings. Compare the size shown for each result and lower quality or choose WebP when you need smaller files.
Does the converter work offline?
After the page is loaded, the image conversion logic runs in your browser. The website itself still needs to load normally, and account or payment features require network access.
Will this support PDF, document, audio, and video conversion?
Those formats require server-side processing, storage, queueing, cost controls, and abuse protection. They may be added after the browser image converter and paid account workflow are stable.
Try a quick image conversion now
Drop a few PNG, JPG, WebP, or AVIF images into the converter and check the output size before using them on a website, in an email, or in another app.