Image Format Converter – JPG, PNG, WebP
Batch convert up to 5 images between JPG, PNG and WebP locally in your browser (privacy-first).
Drop files here
Drag & drop up to 5 JPG, PNG, WebP, GIF or BMP files, or click to browse.
90% is a great default: small file, no visible loss. Use 100% only for print/archival.
Preview & downloads
Upload up to 5 images, pick an output format, convert, then download.
Convert image formats online free (JPG ↔ PNG ↔ WebP)
ToolsOfWeb is a free image format converter that runs entirely in your browser. Convert WebP to JPG for compatibility with older software, JPG to PNG when you need lossless quality, or anything to WebP for the smallest modern file sizes — with no upload, no watermark, and no sign-up.
You can batch convert up to 5 images at a time and download them individually or as a ZIP. Because processing happens locally, it’s a safer option for client work, personal photos, and brand assets that you don’t want to send to a server.
How to convert image format
- Upload up to 5 images (JPG, PNG, WebP, GIF, BMP).
- Pick the output format: JPG, PNG, or WebP.
- Set quality (for JPG/WebP) and a background color for transparent areas (for JPG).
- Click Convert, then download the files individually or as a ZIP.
JPG vs PNG vs WebP — which should you use?
JPG is best for photographs and final exports where small file size matters more than pixel-perfection. It’s lossy, so every re-save loses a little detail — avoid editing and re-saving the same JPG repeatedly.
PNG is lossless and keeps transparency, which makes it ideal for logos, icons, screenshots, and graphics with text. The trade-off is larger file sizes, especially for photos.
WebP is the modern middle ground: typically 25–35% smaller than JPG at similar quality, with transparency support. Use it for websites and apps — convert to JPG only when you need compatibility with older tools.
Tips for clean conversions
- Don’t “upscale” quality by converting JPG → PNG — it only inflates file size.
- WebP → JPG is the most common compatibility fix (some upload forms still reject WebP).
- For the smallest files, convert to WebP at 80% quality, then compare visually with the original.
- Keep a PNG master of logos/icons, and export JPG/WebP copies for sharing.
FAQs
Does this upload my images to a server?+
No. Format conversion runs locally in your browser using the Canvas API. Your files are never uploaded for processing.
What happens to transparency when I convert to JPG?+
JPG cannot store transparency, so see-through pixels are filled with the background color you choose (white by default). Convert to PNG or WebP instead if you need to keep transparency.
Will converting JPG to PNG improve quality?+
No. Converting a lossy JPG to a lossless PNG will not restore detail that was already lost — it only makes the file bigger. Convert to PNG/WebP when you need transparency or plan to edit further; keep JPG for final photos.
What about animated GIFs?+
Only the first frame of an animated GIF is converted. This tool is for still-image format conversion.
Which quality setting should I use?+
For JPG, 90% is a great default — small file with no visible loss. For WebP, 80–90% usually beats JPG quality at a smaller size. Use 100% only for print or archival copies.
Related Tools
Want guides and tips? Visit the ToolsOfWeb blog or go back to the homepage.
Converted to WebP? Shrink it further.
After converting, run the result through the Image Compressor to squeeze out extra kilobytes without visible quality loss — handy before uploading to a website or sending by email.