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Try Image Studio - all tools in one place
Convert, compress, resize, crop and watermark images in a single workflow - with live before/after preview and bulk processing.
What is convert image online free?
Different platforms require different image formats — Indian government portals typically require JPG, US job application portals often accept PNG, and web use increasingly favors WebP. Vakru converts between JPG, PNG, and WebP entirely in your browser with no upload. Adjust output quality with a slider, bulk convert up to 50 files, and download as ZIP. Supports BMP and GIF as additional input formats. Free, no signup, no watermark.
How it works
Switch between image formats - JPG to PNG, PNG to WebP, WebP to JPG, JPG to WebP - with lossless conversion in your browser.
Upload your image
Add any JPG, JPEG, PNG, WebP, GIF or BMP file. You can also drop several images at once for batch conversion.
Pick the target format
Choose JPG, PNG or WebP as the output. The converter handles transparency, colour profiles and quality automatically.
Download converted image
Save the converted file with one click - no signup, no quality loss, no hidden watermark.
💡 Pro Tips
Use WebP for the smallest web images
WebP delivers 25-35% smaller files than JPG at the same quality - all modern browsers support it.
PNG preserves transparency - JPG does not
If your image has a transparent background (logo, sticker), keep it as PNG. Converting to JPG fills transparency with white.
JPG quality 80% is the sweet spot
For photos, 80% JPG quality is visually identical to 100% but half the file size - use the slider to tune it.
Bulk convert saves time
Upload a folder of images and convert all of them to WebP in one go - the ZIP download keeps them organized.
Frequently Asked Questions