What Is an Image Converter?

An image converter changes an image from one file format to another. Whether you need to shrink a PNG photo into a JPG, convert a WEBP download into a PNG for editing, or turn a BMP into something web-friendly, an image converter handles it — without needing Photoshop or any desktop software.

How to Use This Tool

Upload one or more images — drag and drop or click to browse.
Choose an output format — JPG, PNG, WEBP, BMP, or GIF.
Adjust quality — for JPG and WEBP, control compression from 10% to 100%.
Convert — hit "Convert All" and see the results instantly.
Download — individually or as a ZIP archive.

Format Comparison

Format	Best For	Transparency	Compression
JPG / JPEG	Photographs, complex images	❌ No	Lossy (adjustable)
PNG	Logos, screenshots, graphics	✅ Yes	Lossless
WEBP	Modern web images	✅ Yes	Lossy or lossless
BMP	Raw bitmap editing	❌ No (usually)	Uncompressed
GIF	Simple animations, icons	✅ Yes	Limited to 256 colors

Common Use Cases

Website speed — convert heavy PNG screenshots to WEBP or JPG to shrink page weight.
Print vs web — JPG for print, WEBP for web.
Social media — some platforms accept certain formats only.
Image editing prep — convert any format to PNG to preserve transparency before editing.
Email size limits — compress JPGs to fit size limits.
Compatibility — convert WEBP to JPG for older apps that don't support it.
Archival — store photos as high-quality JPG or lossless PNG.

Quality vs File Size

For JPG and WEBP, the quality slider controls the compression level:

90–100% — Near-original quality. Larger files.
75–90% — Sweet spot for most photos. Great balance of size and quality.
50–75% — Visible compression. Fine for web thumbnails.
Below 50% — Heavy compression. Noticeable artifacts.

For PNG and BMP, the quality slider has no effect — those formats are always lossless.

Frequently Asked Questions

Will I lose transparency? — If you convert a PNG with transparency to JPG, the transparent areas become white (or the background color you choose). To preserve transparency, output as PNG, WEBP, or GIF.
Will my animations be preserved? — This tool converts still images. Animated GIFs will be flattened to the first frame in most cases.
Is there a file size limit? — Each file should be under 20 MB for best performance. Large images take longer to process.
Are my files uploaded to a server? — No. Everything runs in your browser using the Canvas API. Your images never leave your device.

Related Tools

Image Compressor — reduce file size while keeping quality.
Image Resizer — change image dimensions.
Image Cropper — crop images to any aspect ratio.
Color Blindness Simulator — preview images through CVD lenses.

Privacy Note

All conversion happens in your browser using the HTML5 Canvas API. Your images are never uploaded to a server, never stored, and never shared. Close the tab and everything is gone.