Image Converter — Convert JPG, PNG, WebP & BMP Online

What is an Image Converter?

An Image Converter (इमेज कन्वर्टर) changes a picture from one file format to another — for example WebP to JPG, PNG to WebP, or SVG to PNG — without changing what the picture shows. Different formats exist because they are good at different things: JPG keeps photos small, PNG keeps graphics sharp and supports transparency, WebP is optimised for websites, and BMP is a simple uncompressed format that some older programs still require.

Problems start when a website, app, printer or form only accepts certain formats. A job portal wants JPG but your browser saved a WebP; a design tool needs PNG but you have a JPG; old office software only opens BMP. Instead of keeping a separate converter for every pair of formats, this tool handles them all in one place.

Conversion happens inside your browser: the image is decoded, drawn on a canvas, and saved in the new format. Up to 30 images can be converted in one batch, and nothing is uploaded.

Key Features

• Four output formats: JPG, PNG, WebP and BMP.
• Wide input support: JPG, PNG, WebP, BMP, GIF, AVIF, SVG and ICO — whatever your browser can open.
• Quality control for lossy formats (JPG and WebP), from 10% to 100%.
• Background colour for transparent areas when saving JPG or BMP (white or black).
• Real BMP files created by a built-in 24-bit encoder, because browsers cannot export BMP on their own.
• Batch conversion of up to 30 images, 25 MB each.
• Re-convert the whole list after changing the format or quality.
• ZIP download for the whole batch.
• Clear results: source format, new format, sizes and dimensions for each file.
• Private and free: no upload, no account, no watermark.

How to Convert Images — Step by Step

1. Select the output format at the top of the tool.
2. Adjust quality (for JPG or WebP) and the background colour (for JPG or BMP) if needed.
3. Add your images with the upload box or by dragging them in.
4. Watch them convert one after another; each row updates when it is ready.
5. Change your mind? Pick another format and click Re-convert with Settings.
6. Download each file, or all of them as a ZIP.

Which Format Should You Choose?

Common Conversions Explained

• WebP to JPG: needed when a form, older app or printer does not accept WebP images downloaded from websites.
• PNG to JPG: shrinks large photo-like PNGs for sharing; transparent areas become white.
• JPG to PNG: useful before repeated editing, because PNG does not lose quality each time it is saved.
• PNG or JPG to WebP: makes website images lighter and faster to load.
• AVIF to JPG: AVIF is a newer, very efficient format, but many apps cannot open it yet.
• SVG to PNG or JPG: turns a vector graphic into a normal image for apps that do not support SVG.
• ICO to PNG: extracts a website icon as a regular image.
• Anything to BMP: for legacy programs that only read uncompressed bitmaps.

Image Formats in Plain Language

JPG (JPEG) is the classic photo format. It compresses by discarding detail the eye is unlikely to notice, which makes photos small, but it cannot store transparency and loses a little quality every time it is re-saved. PNG is lossless: it keeps every pixel exactly and supports full transparency, which is why logos, icons, screenshots and anything with text or sharp edges look best as PNG. The trade-off is larger files for photographs.

WebP is Google's web format that supports both lossy and lossless compression plus transparency, usually giving the smallest files for website images. BMP is an old Windows bitmap format with no compression at all — simple and universally readable by legacy software, but very large. GIF is limited to 256 colours and is mainly used for small animations. AVIF is a newer, highly efficient format based on the AV1 video codec; it is excellent for the web but not yet supported by every app. SVG is a vector format made of shapes rather than pixels, so it stays sharp at any size; converting it to JPG or PNG fixes it at a particular pixel size. ICO is the icon format used for website favicons and Windows icons.

Transparency and Background Colour

When an image with transparent areas — a logo, a sticker, a cut-out product — is converted to a format that cannot store transparency, those pixels need a colour. This converter lets you choose white or black. White is right for most documents, forms and printing; black can look better for dark-themed designs. Semi-transparent edges are blended smoothly with the chosen colour, so there is no jagged outline. If you need to keep the transparency, choose PNG or WebP instead.

Why Choose the Prompt Minds Image Converter?

Most online converters handle one pair of formats per page, upload your files to a server, and limit how many you can convert. This tool covers the everyday formats in one place, runs locally on your device, and converts a whole batch at once.

It is also clear about limits. GIF and TIFF output are not offered because browsers cannot create them natively, BMP files are large by nature, and converting a compressed JPG to PNG cannot bring back lost detail. You always see the resulting format, size and dimensions before downloading.

Does Converting Remove Metadata?

Yes. When an image is redrawn on a canvas and saved again, the EXIF metadata of the original — camera model, date taken, GPS location and similar details — is not copied into the new file. That is useful for privacy when you share converted images publicly. If you need to keep that information, keep the original file as well. The orientation of phone photos is applied when the image is decoded, so converted photos keep the correct upright orientation even though the orientation tag itself is not copied.

10 Real-World Use Cases

1. Uploading a downloaded WebP image to a form that only accepts JPG.
2. Converting a batch of screenshots to WebP for a blog.
3. Turning AVIF images into JPG for older phones and apps.
4. Exporting an SVG logo as PNG for social media.
5. Preparing BMP files for legacy machines or signage software.
6. Converting ICO favicons to PNG for documentation.
7. Making PNG copies of JPG photos before editing them repeatedly.
8. Replacing transparent PNGs with JPG on a white background for printing.
9. Standardising mixed formats in a folder before sharing.
10. Converting GIF stills to JPG or PNG.

Common Mistakes to Avoid

• Renaming the file extension. Changing ".webp" to ".jpg" does not convert the file; use the converter.
• Choosing BMP by default. BMP files are huge — use it only when required.
• Expecting PNG to fix a blurry JPG. Conversion keeps quality; it cannot add detail.
• Forgetting transparency. JPG and BMP cannot store it; pick PNG or WebP for logos.
• Very low JPG quality. Below about 70%, blocky artefacts appear.

Browser Support and Limits

The converter works in current versions of Chrome, Edge, Firefox, Safari and Samsung Internet on phones and computers. Input formats depend on your browser — AVIF needs a recent browser, and HEIC is not supported here. WebP output requires a browser with a WebP encoder (Chrome, Edge, Firefox); some older Safari versions cannot create WebP and the tool shows a message. Each image can be up to 25 MB and a batch up to 30 images; images larger than 8,000 pixels on a side are scaled down. Animated GIFs use their first frame.

Image Converter — Key Facts

Frequently Asked Questions

Explore More Prompt Minds Tools

Image Converter works great alongside our other free tools. Every Prompt Minds tool runs entirely in your browser — no sign-up, no uploads, no watermarks. Browse all free tools.