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Image Format Converter

Drop JPG images here or click to upload

Batch convert | Max 50MB each | Up to 20 files

Why Use Our Format Converter?

100% Private & Secure

Images are converted entirely in your browser. Nothing is uploaded to any server.

Two-Way Conversion

Convert PNG to JPG to reduce file size, or JPG to PNG for transparency support.

Batch Processing

Convert multiple images at once. Download all as a ZIP file.

Size Comparison

See original and converted file sizes side by side.

How to choose the best image format

JPG
Best for photos, email attachments, and marketplace uploads where smaller size matters more than perfect fidelity.
PNG
Best for screenshots, UI assets, diagrams, and anything that needs transparency or crisp text edges.
WebP
Best for modern websites that need strong compression without sacrificing too much compatibility.
AVIF
Best when you want maximum compression for web delivery and can tolerate slightly narrower support.

Common format decisions in real work

  • Website images: usually WebP first, AVIF if you want even smaller files.
  • Portfolio or job applications: JPG is usually the safest because upload systems accept it everywhere.
  • Logos and UI screenshots: PNG is usually better because text and edges stay cleaner.
  • Transparent backgrounds: avoid JPG, because transparency gets flattened.

Need to actually convert across more formats? Use Image Converter. Need smaller files after picking a format? Use Image Compressor. Want the whole cluster? Open the Image Tools hub.

Frequently Asked Questions

Which is better: JPG or PNG?
JPG is usually better for photos and smaller file sizes. PNG is usually better for screenshots, graphics, transparency, and anything with sharp edges or text.
Should I use WebP or AVIF for websites?
Use WebP when you want a strong balance between compression and compatibility. Use AVIF when file size matters most and you are comfortable with slightly narrower support.
When should I convert PNG to JPG?
Convert PNG to JPG when you need smaller file sizes and don't need transparency. JPG is ideal for photos and web images where compression artifacts are acceptable.
When should I convert JPG to PNG?
Convert JPG to PNG when you need lossless quality or plan to edit the image further. Note that JPG artifacts will be preserved - conversion doesn't improve quality.
What happens to transparent backgrounds?
JPG doesn't support transparency. When converting PNG to JPG, transparent areas are filled with the background color (default white). You can choose a different color.
What's the best JPG quality setting?
90% offers excellent quality with good compression. 80% is great for web use. Below 70%, quality loss becomes more noticeable, especially in detailed images.
Will converting increase file size?
PNG to JPG usually reduces size (often by 50-80%). JPG to PNG usually increases size since PNG is lossless. The tool shows exact size changes for each file.

Related Image Tools

More Formats Compress Images HEIC to JPG SVG to PNG Image Tools Hub

About Image Format Converter

Convert image formats online free with FreeToolBox — quickly change PNG to JPG, JPG to PNG, WebP to JPG, or any combination in your browser. JPG is best for photos with smaller file sizes; PNG supports transparency and lossless compression; WebP offers excellent quality with smaller files; AVIF provides even better compression for modern browsers. Choosing the right format can significantly improve website performance or reduce storage.

The conversion runs entirely in your browser using the HTML5 Canvas API — no image is ever sent to a server. Convert multiple images in one session, adjust output quality for lossy formats, and download all results at once. Completely free, no watermarks, no account required.

Frequently Asked Questions

When should I use PNG vs JPG?

Use PNG for logos, icons, and images needing a transparent background — PNG is lossless. Use JPG for photographs where file size matters more than precision; JPG achieves much smaller files but doesn't support transparency.

Does converting PNG to JPG remove the transparent background?

Yes. JPG doesn't support transparency, so transparent areas are filled with white (or your chosen background color). If you need transparency, save as PNG or WebP instead.

Is WebP supported in all browsers?

WebP is supported by all modern browsers (Chrome, Firefox, Safari 14+, Edge). For any modern website, WebP is recommended for its superior compression.

Are my images uploaded to a server?

No. All conversions happen locally in your browser using the Canvas API. Your images never leave your device.

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