Free image converter

Convert JPG to PNG Online

Automatically convert photos in seconds. Free, private, and no signup required.

Upload an image

Drag and drop an image here, or click to browse

JPG, PNG, WebP, GIF or BMP · Up to 20 MB

Processed in your browser No signup Instant download

Popular Conversions

Popular image format conversions

Select any conversion pair to optimize for specific format requirements.

JPG → PNG

JPG to PNG

Convert lossy JPEG photos to lossless transparent PNG format.

 JPG → WebP

JPG to WebP

Modernize website images with up to 35% smaller file size.

 JPG → GIF

JPG to GIF

Convert static JPG photos into lightweight web GIF graphics.

 JPG → BMP

JPG to BMP

Convert compressed JPEG images to uncompressed BMP bitmap.

 PNG → JPG

PNG to JPG

Reduce file size by converting uncompressed PNGs to JPEG.

 PNG → WebP

PNG to WebP

Preserve transparency with drastically smaller WebP file size.

 PNG → GIF

PNG to GIF

Convert transparent PNG graphics into standard web GIF format.

 PNG → BMP

PNG to BMP

Convert PNG graphics to uncompressed bitmap BMP format.

 WebP → JPG

WebP to JPG

Convert WebP images to universal JPG format for maximum compatibility.

 WebP → PNG

WebP to PNG

Extract WebP images into standard uncompressed PNG files.

 WebP → GIF

WebP to GIF

Convert WebP graphics to classic lightweight web GIF format.

 WebP → BMP

WebP to BMP

Convert WebP files to raw uncompressed BMP bitmap format.

 GIF → JPG

GIF to JPG

Convert GIF images into high-quality universal JPG format.

 GIF → PNG

GIF to PNG

Convert GIF graphics to lossless high-definition PNG format.

 GIF → WebP

GIF to WebP

Modernize GIF assets to efficient compressed WebP format.

 GIF → BMP

GIF to BMP

Convert web GIF graphics to uncompressed BMP format.

 BMP → JPG

BMP to JPG

Compress heavy uncompressed BMP bitmaps into small JPG photos.

 BMP → PNG

BMP to PNG

Convert BMP bitmap images to clean lossless PNG format.

 BMP → WebP

BMP to WebP

Transform legacy BMP bitmaps into modern web WebP format.

 BMP → GIF

BMP to GIF

Convert raw BMP bitmap files into compact web GIF graphics.

How It Works

Convert an image in three steps

Upload an image, let the browser convert format pixels, then download the result.

01

Upload your image

Choose a JPG, PNG, WebP, GIF, or BMP image from your device.

02

Browser processes format

The canvas conversion engine runs locally in your browser.

03

Download your file

Preview the side-by-side result and download the converted image.

Use Cases

Convert images for any project

Optimizing format selection for web, graphics, development, and social media.

🌐

For Websites

Convert heavy files to WebP to improve site load times and SEO scores.

🎨

For Design Work

Convert to PNG to preserve alpha transparency for Photoshop or Figma.

📱

For Social Media

Convert pictures to JPG format for standard uploads on social networks.

💻

For Development

Convert legacy BMP or GIF assets to modern lightweight web formats.

Private By Design

Your image is processed in your browser

This tool does not need an image-processing backend. The conversion runs locally on your device, so your selected image stays in the browser.

No signup

Start converting images immediately.

No server upload

Canvas conversion happens locally in your browser.

No watermark

Download clean converted images directly.

No software

Use any modern desktop or mobile browser.

Image Optimization Guide

Understanding Image Format Conversion & Optimization

Image format conversion plays a vital role in modern web development, graphic design, and digital content creation. Selecting the optimal image format balances visual crispness, color space representation, alpha channel transparency, and file size efficiency.

Why Image Formats Matter for Web Performance

For modern websites, images account for over 60% of total web page weight. Converting heavy JPEG or PNG assets to next-generation formats like WebP directly speeds up Google Core Web Vitals, reduces Largest Contentful Paint (LCP) times, and lowers web hosting bandwidth overhead.

Lossless vs. Lossy Compression

PNG (Portable Network Graphics) relies on DEFLATE lossless compression, making it ideal for UI icons, logos, vector drawings, and screenshots requiring crisp edges and full 8-bit alpha channel transparency. JPG / JPEG uses lossy discrete cosine transform compression best suited for complex photographic imagery where minor pixel variations remain imperceptible to the human eye.

100% Private Client-Side Browser Processing

Convert Img executes all image decoding, pixel transformations, and format encoding directly inside your web browser using HTML5 Canvas APIs. Your photos remain on your local device CPU/GPU and are never uploaded, saved, or exposed to external servers.

Frequently Asked Questions

Convert Img questions

Is Convert Img free?

Yes. Image conversion is free to use and does not require an account.

Are my images uploaded?

The conversion runs in your browser using HTML5 Canvas. Your selected image is processed on your device rather than being sent to a remote image-processing server.

What image formats are supported?

You can upload JPG, JPEG, PNG, WebP, GIF, or BMP images. The result is exported in your chosen format.

How do I convert JPG to PNG?

Select PNG as your output format, or upload your JPG file directly. The converter auto-detects JPG and outputs a PNG file for download.

Does conversion reduce quality?

Converting to lossless formats like PNG retains full quality. When converting to lossy formats like JPG or WebP, you can use the built-in quality slider to adjust output quality.

Which format should I use for websites?

WebP is recommended for modern websites because it provides superior compression and quality compared to legacy JPG or PNG formats.