Convert image formats online
Transform JPG, PNG, WebP, AVIF, SVG, BMP, and ICO files instantly. 100% private in your browser.
Select an image to convert
Drag and drop your JPG, PNG, WebP, AVIF, SVG, BMP, or ICO file here, or click to browse.
Popular conversion presets
Popular image conversions
Explore our most requested conversion tools. Switch formats in seconds with complete privacy and zero quality loss.
JPG to PNG
Convert JPG photographs to lossless PNG format for clean editing and transparency support.
PNG to JPG
Compress large PNG graphics and screenshots into lightweight, universal JPG format.
JPG to WebP
Reduce image file size by up to 50% for faster website loading without visible quality loss.
PNG to WebP
Convert heavy transparent PNGs to lightweight WebP while preserving crisp transparency.
WebP to JPG
Convert web-optimized WebP files to widely supported JPG for photo viewers and older apps.
WebP to PNG
Restore WebP images to high-definition PNG format with preserved transparency channels.
Image to ICO
Generate clean favicon.ico files for web browsers, bookmarks, and desktop application shortcuts.
SVG to PNG
Render scalable vector SVG graphics into crisp, transparent raster PNG files at native resolution.
BMP to JPG
Shrink massive uncompressed Windows Bitmap (.bmp) files into lightweight, shareable JPG images.
Image to AVIF
Convert images to modern AV1 image format for unmatched file compression and high visual fidelity.
How to convert images online
Transform image formats in three simple, private steps right inside your browser.
Upload your image
Drag and drop any JPG, PNG, WebP, AVIF, SVG, BMP, or ICO file into the dropzone, or click to browse from your device.
Choose target format
Select your desired output format (such as PNG, JPG, WebP, AVIF, or ICO) and customize quality or background fill if needed.
Download converted file
Click Convert & Download to save your newly formatted image instantly to your computer or mobile device.
Image format comparison guide
Understand the differences between popular image formats to pick the right one for your specific needs.
| Format | Best used for | Transparency | Compression | Browser support | Relative size |
|---|---|---|---|---|---|
| JPG / JPEG | Photographs, digital art, social media | No | Lossy (Adjustable) | 100% (Universal) | Small |
| PNG | Logos, screenshots, graphics with text | Yes (Full Alpha) | Lossless | 100% (Universal) | Large |
| WebP | Modern websites, e-commerce, mobile apps | Yes (Full Alpha) | Lossy & Lossless | 97%+ (All modern browsers) | Very Small |
| AVIF | Next-gen web graphics, extreme optimization | Yes (Full Alpha) | Lossy & Lossless | 93%+ (Modern browsers) | Smallest |
| ICO | Website favicons, Windows desktop shortcuts | Yes (Full Alpha) | Lossless (PNG packed) | 100% (Favicon standard) | Tiny |
| BMP | Legacy Windows software, raw bitmap editing | No | Uncompressed | 99% (Desktop & Web) | Very Large |
Why use Velenstac Image Format Converter
100% Client-side privacy
Images are converted directly inside your browser memory using HTML5 Canvas. Your files are never uploaded to any remote server or third-party cloud.
Lightning fast processing
Experience instant conversions powered by your device hardware. No waiting in server queues or uploading large multi-megabyte files over slow connections.
Multi-format flexibility
Convert between JPG, PNG, WebP, AVIF, SVG, BMP, and ICO formats seamlessly with customizable compression and background fill options.
No limits or watermarks
Convert photos without artificial file size throttles, annoying watermarks, or mandatory account registrations. Always 100% free to use.
Crisp favicon generation
Produce authentic multi-resolution Windows and website ICO favicon files directly from your transparent PNG or JPG logo.
No data retention
When you refresh the page or select another file, temporary memory is completely cleared. Your confidential photos and graphics remain strictly yours.
Frequently asked questions
Find answers to common questions about image formats, quality preservation, and conversion.
How do I convert JPG to PNG without losing quality?
Select or drop your JPG file into the converter, choose 'PNG' as the target format, and click 'Convert & Download'. Because PNG is a lossless format, your image will retain 100% of its visual fidelity without introducing any additional compression artifacts.
What happens to transparency when converting PNG to JPG?
The JPG format does not support alpha transparency. When converting a transparent PNG to JPG, our tool automatically replaces transparent pixels with a clean background fill (defaulting to pure white). You can also choose custom background fill colors before converting.
Why should I convert my JPG and PNG images to WebP?
WebP is a modern web image format developed by Google that provides superior lossless and lossy compression for images on the web. Converting JPG and PNG images to WebP typically reduces file sizes by 25% to 45% while preserving visual clarity, significantly speeding up website loading times and improving Google Core Web Vitals.
How can I create a favicon.ico from a PNG or JPG logo?
Upload your logo or icon image, select 'ICO (Favicon)' as your target format, and choose your preferred icon resolution (such as 32×32 for standard web browser tabs, or 256×256 for high-DPI desktop displays). The tool compiles a valid .ico binary that can be placed in your website root as favicon.ico.
Are my photos uploaded to any server or stored in the cloud?
No. All image format conversions are processed 100% locally in your web browser using HTML5 Canvas and native binary encoders. Your files never leave your device, ensuring total privacy and security.
What is the difference between WebP and AVIF?
AVIF is a newer image format derived from the AV1 video codec that provides up to 20% better compression than WebP. While WebP enjoys near 100% support across all modern web browsers, AVIF is supported in recent versions of Chrome, Firefox, and Safari. WebP remains the ideal universal choice for broad web compatibility, while AVIF is great for cutting-edge performance.
Can I convert large images without file size limits?
Yes. Our converter supports high-resolution photos and files up to 50 MB directly in your browser. Because processing happens on your local device hardware, there are no queue delays, server timeouts, or subscription paywalls.
Can I convert SVG vector files to PNG or JPG?
Yes. You can upload an SVG file and convert it into high-definition raster PNG, JPG, or WebP images. The vector artwork is rendered smoothly onto the canvas at its native proportions.