Browser-based image tools
Free Image Converter Online
Convert image formats directly in your browser. Add one image or a batch, choose JPG, PNG, WebP or AVIF, then download the results.
Images are processed in your browser and are not uploaded to ViewerPix.Drop images to convertHEIC · HEIF · AVIF · TIFF · WebP · JFIF · PNG · JPG · SVGor click to choose files
1. Images
3. Convert
0After conversion, download each file or download all as ZIP.
Output0/0
- 1AddedChoose one or more images.
- 2ConvertPick an output format and convert.
- 3DownloadSave each result or a ZIP.
Add images to begin.
How it works
Convert locally in your browser
ViewerPix decodes and converts supported images on your device. Your files do not need to be uploaded to an application server.
Batch conversion without extra steps
Add multiple images, convert them with the same output settings, then download one result or all completed files.
Control image quality
For JPG and WebP output, adjust quality before converting. PNG remains lossless and keeps transparency when possible.
How to use Free Image Converter Online
- 1
Add the source image
Choose, drag or paste the image you want to convert.
- 2
Choose the output format
Select JPG, PNG, WebP or AVIF. Quality controls appear for lossy formats when relevant.
- 3
Convert and download
Convert locally, inspect the result, then download one file or a ZIP for multiple results.
About Free Image Converter Online
This converter keeps the original pixel dimensions by default and changes the file encoding to the selected output format.
Frequently asked questions
Will converting an image change its dimensions?
Usually not. ViewerPix creates the output canvas at the current image width and height, then changes the encoding and extension. The pixels are not necessarily identical: JPG, WebP, and AVIF can change slightly through lossy re-encoding, and an SVG becomes a raster image.
Is there a reason to convert JPG to JPG or PNG to PNG?
It creates a newly encoded file, not a byte-for-byte copy. A lower JPG quality can reduce size but can add compression artifacts; PNG to PNG is also re-rendered. If you only need the original, do not convert it.
Will EXIF, GPS, dates, camera information, or ICC profiles be kept?
Do not rely on that. Conversion redraws the image on a browser canvas and may omit EXIF, GPS, capture dates, camera details, color profiles, vector structure, and other attached metadata. Keep the original file if you need that information.
What happens when a transparent PNG or WebP is converted to JPG?
JPG does not support transparent pixels. ViewerPix fills transparent areas with the selected JPG background color, normally white. PNG and WebP can preserve transparency that the browser canvas retains.
Should I choose JPG, PNG, WebP, or AVIF?
Use JPG for widely compatible photos without transparency, PNG for screenshots, text, and transparent graphics, and WebP for a practical balance of size and quality. AVIF can be smaller, but older software and services may not support it. The quality control applies to JPG, WebP, and AVIF, not lossless PNG.
Can I convert several images at once with different settings?
You can add several images, but one conversion run uses the same output format, quality, and JPG background for every file. Changing those settings clears completed outputs, so run the conversion again after changing them.
What does Download all do, and will repeated filenames overwrite each other?
With one completed image it downloads that file. With several it creates a ZIP. Outputs use the source filename with the new extension, and duplicate names in a ZIP receive a number so they are not overwritten. Failed files are not included.
Can I paste a screenshot instead of saving it first?
Yes. Paste an image from the clipboard when the focus is not in a text field, or drag and drop files or choose several files. Text, web links, file paths, and unsupported clipboard content are not added as images.
Will every HEIC, HEIF, TIFF, or SVG file convert successfully?
No. ViewerPix attempts common variants, but success depends on the file encoding, image size, and browser. Multi-page TIFF currently uses only the first page, and SVG output becomes raster. If a special format fails, convert it to PNG or JPG with compatible software first.
Are my images uploaded to a server?
No. Supported image processing runs locally in your browser. Third-party decoder code may be loaded only when a format needs it, but your image itself stays on your device.
Private browser processing
ViewerPix processes supported images on your device. Your image files are not uploaded to a ViewerPix application server for this task.
Format decisions before you convert
HEIC vs JPG
HEIC is compact and keeps modern phone-photo data, while JPG is broadly compatible. Choose JPG when the recipient or app may not support HEIC.
PNG vs WebP
PNG is a good fit for transparency and sharp UI graphics. WebP can be smaller for photos and can also keep transparency.
Why file size changes
A format conversion decodes the source and encodes a new file. Quality, transparency, dimensions and the target codec all affect the result.