What is Image Converter?
Image Converter is a free browser-based image tool. All image processing uses your browser's Canvas API — no file is ever uploaded to a server. Works with JPG, PNG and WebP formats. Results are instant, with no account or software installation required.
This tool lets you png ↔ jpg ↔ webp conversion without installing any software or creating an account. Everything runs directly in your browser for maximum privacy. Your files and data never leave your device.
Use it for quick tasks at any time from any device — desktop, tablet or mobile. No subscription, no ads, no limits.
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Instant results
No server processing or wait
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100% private
Files stay on your device
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Always free
No subscription or fees
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Mobile ready
Works on any device
How to use Image Converter
- Upload your image — supports JPG, PNG, WebP, GIF and BMP
- Select the output format you need (WebP for web, JPG for compatibility, PNG for transparency)
- Adjust quality if converting to a lossy format like JPG or WebP
- Click Convert and download your converted image file
Why use OnlineToolsPlus?
Image tools on OnlineToolsPlus run entirely in your browser using the Canvas API — no file ever touches a server. This matters for privacy: your photos, screenshots and graphics stay on your device. With 15+ free image tools covering compression, conversion, cropping, OCR, watermarking and more, you can handle any image task without installing software or creating an account.
Frequently asked questions
Does converting between formats reduce quality?
It depends on the conversion direction. Converting JPG to WebP at the same quality setting produces a smaller file with equivalent visual quality — no visible loss. Converting PNG to JPG introduces lossy compression for the first time, which can affect fine edges and text. Converting JPG back to PNG does not restore lost detail — the lossy damage from the original JPG encoding is already done. For the cleanest results, always start from the highest-quality source file available.
Can I convert WebP to JPG?
Yes. Upload your WebP file, select JPG as the output format, and download. This is useful for making WebP images compatible with older applications, Windows Photo Viewer, email attachments, or services that do not yet support WebP. The conversion is instant and runs entirely in your browser.
Does converting PNG to JPG remove transparency?
Yes. JPG does not support an alpha channel (transparency). When you convert a PNG with a transparent background to JPG, the transparent areas become white. If you need to place the image on a colored background, set the background color in an image editor before converting, or use the final page background color as the fill color.
Why is my converted file larger than expected?
This can happen when converting JPG to PNG. PNG uses lossless compression which preserves every pixel, while JPG uses lossy compression. A JPG photograph often stores far less data than the equivalent PNG. If you need a smaller file, keep it as JPG or convert to WebP, which provides better compression than both for photographs.
Is WebP supported by all browsers?
WebP is supported by all major modern browsers: Chrome 23+, Firefox 65+, Safari 14+, and Edge 18+. Global browser support is above 95% as of 2025. The only exceptions are very old browser versions and some older email clients. For websites, WebP is safe to use with a JPG fallback for the rare cases where it is not supported.
Can I convert multiple images at once?
The current tool processes one image at a time. Each conversion is instant, so converting a small set manually takes only seconds. For batch conversion of many files, command-line tools like ImageMagick (free, cross-platform) or the Squoosh CLI are efficient options.
Does conversion change image dimensions?
No. The converter changes only the file format and encoding. The pixel dimensions (width × height) remain exactly the same as the original. If you need to resize as well as convert, use the Image Resizer first and then convert the result.
What is the best format for website images?
WebP is the best format for website images in 2025. It achieves 25–35% smaller files than JPG at equivalent quality and supports transparency like PNG. For browser compatibility, serve WebP to modern browsers and fall back to JPG or PNG for older ones using the HTML element. Most modern CMS platforms including WordPress 5.8+ and Shopify support WebP automatically.
Can I convert an image to GIF?
The current tool supports JPG, PNG, and WebP. GIF conversion is not available because GIF is limited to 256 colors and is mainly used for animations. For static images, PNG or WebP always produces better quality at a similar or smaller file size. For animated GIFs, dedicated tools are needed.
Is my file uploaded to a server?
No. All conversions run entirely in your browser using the Canvas API. Your image data never leaves your device. This matters especially for sensitive images like personal photos, ID documents, and business assets. There is nothing to trust about a server because there is no server involved.
- PNG to JPG: Reduce file size for photos saved as PNG. A 5 MB PNG photograph often converts to a 500 KB JPG with no visible quality difference.
- JPG to PNG: Add transparency support for a logo or graphic that was accidentally saved as JPG. Note: JPG does not store transparency, so the result will have a white background unless you manually remove it with the Image Background Remover.
- JPG/PNG to WebP: Optimize images for faster website loading. Converting existing site images to WebP is one of the quickest wins for improving Core Web Vitals scores.
- WebP to JPG/PNG: Make WebP images compatible with older software, email clients, or systems that do not yet support the format.
Common Conversion Use Cases
- JPG: Best for photographs and images with gradients. JPG uses lossy compression that discards subtle color variations — perfect for natural scenes where those variations are invisible to the human eye. Files are small. Avoid JPG for graphics with sharp edges, text, or flat colors — compression creates visible artifacts around edges.
- PNG: Best for logos, screenshots, UI graphics, illustrations, and any image that needs transparency. PNG is lossless so it preserves every pixel exactly. File sizes are larger than JPG for photographs but often smaller for simple graphics. The alpha channel (transparency) is only available in PNG, not JPG.
- WebP: Google's modern format that supports both lossy and lossless compression. Achieves 25–35% smaller files than JPG at equivalent visual quality. Supported by all modern browsers (Chrome, Firefox, Safari 14+, Edge). The best choice for website images where file size and load speed matter.
When to Use Each Image Format
More Image Tools
Image ResizerResize to exact pixel dimensionsImage CompressorReduce file size up to 90%Crop ImageCrop to custom dimensionsRotate & FlipRotate 90°/180° or flipAdd WatermarkAdd text watermark to image
Last updated: April 11, 2026
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