Convert Image Format Online

Convert images between popular formats including JPG, PNG, WebP, AVIF, GIF, and BMP. Batch-convert multiple images at once and download them as a ZIP archive.

Your files never leave your browser. We have no server to upload to. No signup. No account. No email required. Free to use. No limits. No watermarks.

Drop images here or click to select

JPG, PNG, WebP, GIF, BMP, up to 20 images

How to Convert Image Formats

Drop one or more images into the drop zone above, or click to select files from your device. Choose your target output format using the format buttons, then click Convert All. Each file converts independently in your browser using the Canvas API. Download files individually using the per-row Download button, or click Download All to save every converted image at once. You can convert the same images again at any time by selecting a different format.

Which Format Should I Choose?

JPG is best for photos and complex images. Files are smaller than PNG, but JPG does not support transparency. Transparent areas are filled with white on conversion.

PNG is ideal for graphics, screenshots, and images with transparent backgrounds. Compression is lossless, so no quality is lost.

WebP is a modern format that is typically 25–35% smaller than JPG or PNG at equivalent quality. Supported in all current browsers.

BMP is an uncompressed bitmap format. Files are very large. Use only when required by legacy software that does not accept other formats.

What Happens to Transparency?

PNG and WebP support transparency. When you convert a transparent image to JPG or BMP, the transparent areas are filled with white, because those formats do not support an alpha channel. To preserve transparency, keep the output format set to PNG or WebP.

Why Use a Browser-Based Image Converter?

Conversion runs entirely via the Canvas API on your device. No images are uploaded anywhere. Convert up to 20 images at once. Works offline once the page has loaded. No account required, no watermarks, no file size limits.

Frequently Asked Questions

Is it safe to use Convert Image Format for confidential documents?
Yes. Convert Image Format runs entirely in your browser. Your files are never uploaded to any server, stored in any database, or transmitted over any network. Processing happens locally on your device using JavaScript APIs.
Do I need to create an account?
No account, login, or email required. Office Quick Tools is completely free with no registration of any kind.