ChangeMyFile - Free Online File ConverterChangeMyFile
Trusted by thousands of users worldwide

JPEG Converter - Convert Any Image to JPEG Format

Convert images to JPEG format. Same as JPG-universal photo format that works everywhere.

Step 1: Upload your files

You can also Drag and drop files.

Step 2: Choose format
Step 3: Convert files

Read Terms of use before using

Share:fXin@
500+ Formats
Lightning Fast
100% Secure
Always Free
Cloud Processing

What is JPEG?

JPEG (Joint Photographic Experts Group) is the world's most widely used image format, created in 1992 for efficient photo storage and sharing. It uses lossy compression to reduce file sizes by 10-20x while maintaining visual quality.

Important: JPEG and JPG are exactly the same format. The only difference is the file extension-JPG became common because early Windows versions only allowed 3-letter extensions. All software treats .jpeg and .jpg files identically.

Whether you're converting to JPEG or JPG, you get the same universal compatibility and efficient compression for photos.

Why Convert to JPEG?

JPEG's universal compatibility makes it the go-to format:

  • Works everywhere - Every device, browser, and app supports JPEG without special software
  • Efficient compression - Photos become 10-20x smaller with barely noticeable quality loss
  • HEIC to JPEG - Convert iPhone photos for Windows and cross-platform sharing
  • Web-ready - JPEG is the standard for web images and social media
  • Email-friendly - Compressed JPEGs fit within attachment limits
  • Print compatible - Print services accept JPEG without issues

Convert to JPEG from Any Format

PNG to JPEG

Convert PNG screenshots and graphics to JPEG for smaller file sizes. Note that transparency becomes a solid background (usually white). Best for photos and images without transparency needs.

HEIC to JPEG

iPhone's default HEIC format doesn't work on Windows or many websites. Convert to JPEG for universal access to your iPhone photos.

WebP to JPEG

WebP is modern and efficient but still has compatibility gaps. Convert to JPEG when sharing with users who might have trouble opening WebP.

RAW to JPEG

Camera RAW files require special software and are huge. Convert to JPEG for sharing and everyday viewing.

TIFF to JPEG

Scanned documents and professional files in TIFF are too large for email and web. JPEG compression makes them practical to share.

Convert JPEG to Other Formats

JPEG to PNG

Convert when you need transparency or will edit repeatedly. Note: quality lost in JPEG compression can't be restored-PNG just preserves current quality.

JPEG to PDF

Create documents from photos. Combine multiple JPEGs into a single PDF for sharing photo collections or documentation.

JPEG to WebP

For website optimization. WebP is 25-35% smaller than JPEG at equivalent quality. Good for web developers controlling the viewing environment.

JPEG Technical Specifications

  • Full name: Joint Photographic Experts Group
  • Extensions: .jpeg, .jpg (identical)
  • MIME type: image/jpeg
  • Compression: Lossy (DCT-based)
  • Color depth: 24-bit (16.7 million colors)
  • Transparency: Not supported
  • Animation: Not supported
  • Standard: ISO/IEC 10918

JPEG vs JPG - What's the Difference?

There is no difference-they're the same format:

  • .jpeg - Original extension, full name spelling
  • .jpg - Shortened version for DOS/Windows 3.1 (which only allowed 3-letter extensions)
  • Today: Both are fully interchangeable. Some software defaults to one or the other, but all software reads both.

Choose whichever extension you prefer-there's zero functional difference.

How to Convert JPEG Files

  1. Upload your image - Any format: PNG, HEIC, WebP, TIFF, BMP, RAW, or others.
  2. Select JPEG output - Optionally adjust quality (85% recommended for best size/quality balance).
  3. Download your JPEG - Get universally compatible images instantly.

Batch upload supported-convert multiple files at once.

JPEG Quality Guidelines

  • 90-100%: Maximum quality, larger files. For print and archival.
  • 80-90%: Recommended for most uses. Visually identical to 100% at half the file size.
  • 60-80%: Noticeable on close inspection. Good for thumbnails and web previews.
  • Below 60%: Visible compression artifacts. Only for extreme size reduction.

Pro Tip

Use progressive JPEG encoding for web images-the image loads as a gradually sharpening preview instead of top-to-bottom, improving perceived performance on slow connections.

Common Mistake

Opening and re-saving JPEG files repeatedly. Each save recompresses and degrades quality slightly. Edit in lossless formats (PNG, TIFF) or your editor's native format, then export to JPEG only once at the end.

Best For

Photographs, complex images with smooth gradients, and situations requiring universal compatibility. JPEG is the safe choice when you're unsure what devices or software the recipient will use.

Not Recommended

Text, logos, screenshots, or images with sharp edges-JPEG compression blurs fine details. Also avoid for images needing transparency or files you'll edit multiple times. Use PNG for these cases.

Frequently Asked Questions

Yes-completely identical. JPEG is the full extension, JPG is the shortened version from when Windows only allowed 3-letter extensions. All software treats them the same. Use either one.

JPEG (Joint Photographic Experts Group) is the standard image format for photos, using lossy compression to reduce file sizes dramatically while maintaining good visual quality. It works on every device and platform.

Upload your iPhone HEIC photo and select JPEG as output. The converted file works on Windows, Android, social media, and everywhere else-unlike HEIC which has limited compatibility.

JPEG uses lossy compression, so there's technically some quality loss. At 85-90% quality settings, this is invisible to most viewers. The file size benefits usually outweigh the imperceptible quality trade-off.

JPEG is 3-10x smaller for photos. Use JPEG for photographs where small file size matters. Use PNG when you need transparency, have graphics/screenshots, or will edit the image repeatedly.

No-JPEG doesn't support transparency. Transparent areas become solid (usually white). If you need transparency, use PNG or WebP instead.

85% for most purposes-visually identical to 100% at roughly half the file size. Use 90-95% for professional or print work. Avoid going below 75% unless file size is critical.

Yes. Upload multiple files and batch convert them all to JPEG simultaneously. All converted files download together for quick processing of large image sets.

WebP is 25-35% smaller with equivalent quality and has good browser support now. For modern websites, WebP is better. For maximum compatibility or email sharing, stick with JPEG.

JPEG has been the standard for 30+ years with 100% compatibility. Some platforms limit uploads to proven formats to avoid processing issues. Converting to JPEG ensures your image is accepted everywhere.

Quick access to the most commonly used file conversions.