RubanTools

Image Format Converter

Convert images between JPEG, PNG, WebP, BMP and GIF formats entirely in your browser - private & instant.

Convert Image

Click or drag & drop an image

JPEG · PNG · WebP · BMP · GIF

Format Comparison Guide
FormatCompressionTransparencyBest for
JPEGLossyNoPhotos, social media, web images
PNGLosslessYes (alpha)Logos, icons, screenshots, graphics
WebPBothYesModern web (30–80% smaller than JPEG/PNG)
BMPNoneNoWindows compatibility, raw pixel data

Image Converter - Format Conversion Guide

Different image file formats exist because different use cases demand different trade-offs between file size, quality, transparency support, and browser compatibility. JPEG (Joint Photographic Experts Group, standardised in 1992) uses lossy compression ideal for photographs - a typical 5 MB camera photo compresses to 300-500 KB with minimal visible quality loss. PNG (Portable Network Graphics, 1996) uses lossless compression and supports transparency, making it preferred for logos, icons, and UI elements. WebP (Google, 2010) achieves 25-34% smaller file sizes than JPEG at equivalent quality and supports both lossy and lossless modes with transparency.

Why Format Conversion Matters in India

Indian e-commerce sellers on Flipkart, Meesho, and Amazon India must submit product images in JPEG at specific dimensions and under strict file size limits (usually under 5 MB, often under 1 MB). Government portal uploads for passports, Aadhaar, and income tax frequently require JPEG specifically. Web developers migrating websites to achieve better Core Web Vitals scores (a Google ranking factor affecting lakhs of Indian business websites) convert PNG images to WebP to reduce page load times. Social media content creators convert BMP screenshots to compressed JPEG or PNG for faster uploads on slower mobile connections.

Privacy-First Conversion

This converter processes all images entirely within your browser using the HTML5 Canvas API. No image data is transmitted to any server, making it safe for converting sensitive documents, identity photos, or confidential business materials. Select your source image, choose the target format, and download the converted file instantly.

Image Converter Questions

This tool converts between JPEG (.jpg/.jpeg), PNG (.png), WebP (.webp), BMP (.bmp) and GIF (.gif - static frame only, no animation). Conversion happens in your browser using the HTML5 Canvas API - no server upload required. Common conversions: PNG to JPEG (reduce file size for photographs), JPEG to PNG (preserve quality for further editing), JPEG or PNG to WebP (smaller files for web), BMP to PNG or JPEG (modern format for old scanned images).

WebP is recommended for all modern websites. It produces files 25–35% smaller than equivalent JPEGs and 26% smaller than PNGs at the same visual quality. WebP supports transparency (like PNG) and lossy compression (like JPEG). All modern browsers - Chrome, Firefox, Edge, Safari 14+ - support WebP. In India, where mobile data speed matters, WebP images load significantly faster. Google recommends WebP in PageSpeed Insights and it is the default format in Google Photos downloads.

No - converting a JPEG to PNG does not recover the quality lost during JPEG compression. JPEG compression is lossy; the discarded detail cannot be recovered. The PNG will be a lossless copy of the already-compressed JPEG data - larger in file size but not better in quality. The only reason to convert JPEG to PNG is to add a transparent background or make further lossless edits. Always work from the original high-quality JPEG or RAW source.

No - all format conversion happens entirely in your browser using the HTML5 Canvas API. Your image is never transmitted to any server, stored or shared. This makes the tool safe for converting sensitive images such as Aadhaar card scans, PAN card copies, medical reports, passport photos and confidential business documents.

Yes, but JPEG does not support transparency. When converting a transparent PNG to JPEG, transparent areas are filled with white (the default). This is expected behaviour. If you need to preserve transparency, convert to WebP or keep it as PNG instead. This tool fills transparent pixels with white when outputting JPEG - ideal for most business use cases like product photos or logos placed on a white background.