📚 Image format quick reference

JPG/JPEG

✅ Lossy, very small files

❌ No transparency

📸 Photos, web images

PNG

✅ Lossless, crisp

✅ Transparency

🎨 Logos, icons, screenshots

WebP

✅ Modern, 30% smaller than JPG

✅ Transparency

🚀 Web optimisation, JPG/PNG alternative

GIF

✅ Animated, 256 colours

❌ Lower quality

🎬 Memes, simple animations

SVG

✅ Vector, infinitely scalable

✅ Editable code

📐 Icons, logos, illustrations

BMP

❌ Uncompressed, huge files

✅ Lossless

💾 Legacy software compatibility

📖 Online Image Converter: 6 Formats, Totally Free

Image format conversion is one of the most common needs in frontend development, UI design, and content creation. The zph.cc online image converter supports conversion between JPG, PNG, WebP, GIF, SVG, BMP – six mainstream formats. It integrates quality compression, resizing, and batch processing. All conversions happen locally in your browser – your images never leave your computer, ensuring complete privacy.

🎯 6 formats covered

JPG (photos), PNG (transparency), WebP (modern), GIF (animations), SVG (vector), BMP (lossless). Covers 95% of use cases.

📦 Batch processing

Upload multiple images at once, convert them to a common format, compress automatically – boosts productivity.

📏 Smart resize

Scale by width/height or set exact dimensions, keep aspect ratio. Perfect for social media or e‑commerce requirements.

🔒 100% local

All processing happens inside your browser – you can even test offline. Safe for confidential, unreleased designs.

🎯 Why you need an image converter

🌐 Web optimisation: Convert PNG/Lossless to WebP, reduce file size by 30‑50%, speed up your pages.
🛒 E‑commerce: Batch resize product photos from camera JPG to a uniform size and PNG for transparency.
🎨 Design collaboration: Export SVGs from Figma/Sketch as PNGs for easy use in Word or PowerPoint.
📱 Social sharing: Turn GIFs into JPG covers, or compress multiple images before sending.
💼 Document processing: Convert old BMP files to JPG to reduce document size.

💡 Format selection guide

🔹 Photos, complex gradients → choose JPG or WebP

JPG is the king of lossy compression – tiny files, but you'll see artefacts. WebP is the modern replacement: 30% smaller with the same quality, and it supports transparency.

🔹 Logos, icons, need transparency → choose PNG or SVG

PNG is lossless and sharp, perfect for graphics with sharp edges. SVG is vector – scales infinitely, ideal for responsive websites.

🔹 Animations, memes → choose GIF

GIF supports 256 colours and frame animation. Quality is limited, but compatibility is universal. For high‑quality animations, consider MP4/WebM video.

❓ Frequently Asked Questions

❓ Q1: How compatible is WebP?

WebP was introduced by Google and is now supported by all modern browsers (Chrome, Edge, Firefox, Safari 14+). Safari below 14 needs an update. According to Can I Use, global coverage exceeds 95%. If you need to support very old browsers, provide JPG/PNG fallbacks.

❓ Q2: Can you convert SVG (vector)?

Yes! The tool supports SVG → PNG/JPEG/WebP rasterisation. We draw the SVG on a canvas and export as a bitmap. Remember that SVG is infinitely scalable; after conversion you'll get a fixed‑size image – set your desired dimensions first.

❓ Q3: Why is my PNG larger than the original?

This usually happens when converting JPG → PNG. JPG is lossy and small; PNG is lossless and therefore larger. If you don't need transparency, stick to JPG or convert to WebP (which is why WebP is our default recommendation).

❓ Q4: Do you support HEIC/AVIF?

Not yet – browser native support for HEIC (Apple's default) and AVIF is limited. We recommend converting HEIC to JPG/PNG first (e.g., with iCloud or another tool) and then using this converter. AVIF support is planned for a future release.

❓ Q5: Why do I need a ZIP for batch download?

Browsers cannot download multiple files at once. That's why batch downloads are packaged as a ZIP archive. We plan to integrate the JSZip library soon. For now, you can download each converted image individually.

❓ Q6: Will my images be leaked?

Absolutely not. This is a static page – all image processing code runs in your browser. Open Chrome DevTools → Network tab while uploading; you'll see no network requests. Your images never touch zph.cc servers, safe for commercial projects and unreleased designs.

🔗 Related Tools

This tool is part of the zph.cc design toolkit. You might also need:

SVG Editor / Minifier – Edit and optimise SVG online
QR Code Generator – Text/link to QR code, with logo support
Base64 Encoder/Decoder – Convert images to Data URL
Color Converter – HEX/RGB/HSL conversion
Flexbox Layout Generator – Visual CSS Flex tool

⚡ All tools run locally, no data ever uploaded. Safe for commercial projects.

🖼️ Image Format Converter

Drop images here or click to upload

📷 Original image

⚙️ Conversion settings

✨ Preview

📊 Compression result

📦 Batch queue (0 files)