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Image Format Converter

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📖 How to Use Image Format Converter

Steps
①
Upload Images

Click or drag images to the upload area

📁 Upload Zone
②
Select Output Format

Choose JPG, PNG, WebP, or BMP as target format

📄 Format Selection
③
Adjust Quality

Slide the quality slider to set output quality

🎚️ Quality Slider
④
Convert & Download

Wait for processing and click download

💾 Download
💡 PNG to JPG significantly reduces file size
Use Cases
📋 ID Photo Format

Exam requires JPG but photo is PNG

🔲 Transparent Background

Need transparent background, convert JPG to PNG

⚡ Web Optimization

WebP format has smaller file size

📱 iPhone HEIC Photos

Convert HEIC to JPG for universal sharing

Convert between PNG, JPG, WebP, HEIC, BMP, GIF formats — all in your browser, no upload needed

📁

Click or drag images here

Supports PNG, JPG, WebP, HEIC, BMP, GIF

iPhone HEIC photos supported! Max 20 files at once

Files (0)

Output Quality 0.92
Converting... 0/0

✅ Conversion complete! 0 files processed.

What is Image Format Converter?

JieBang Image Format Converter is a free online tool that supports batch conversion between PNG, JPG, WebP, HEIC, BMP, and GIF formats. All processing happens locally in your browser — your images never leave your device.

How to Use Image Format Converter?

  1. Drag and drop or select multiple images to upload
  2. Choose your target output format (JPG, PNG, WebP, or BMP)
  3. Adjust quality slider for JPG/WebP if needed
  4. Click "Convert All" to process your images
  5. Download individually or as a ZIP file

Common Use Cases

Why Choose JieBang Image Format Converter?

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Frequently Asked Questions

How to convert HEIC to JPG?

Upload your HEIC file (from iPhone), select JPG as output format, and click Convert. JieBang converts HEIC files entirely in your browser — no upload needed.

Can I convert multiple images at once?

Yes! Drag and drop or select multiple images at once. After conversion, download them individually or as a ZIP file.

Is my image data safe?

Absolutely. All processing happens locally in your browser using JavaScript. Your images are never uploaded to any server.

What's the difference between PNG and JPG?

PNG supports transparency and lossless compression, ideal for logos and screenshots. JPG uses lossy compression for smaller file sizes, best for photographs. WebP offers both — smaller than JPG with quality close to PNG.

Does this tool support HEIC files from iPhone?

Yes! JieBang is one of the few free tools that supports HEIC-to-JPG/PNG/WebP conversion. iPhone photos are saved as HEIC by default — convert them to share universally.

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