How to Convert Images to WebP, AVIF, PNG, or JPG (Free Guide)

TL;DR: Convert images between any format (WebP, AVIF, PNG, JPG, BMP, TIFF, ICO) free online using browser-based converters. No software installation needed. All conversions happen locally in your browser for complete privacy. Use our free image converters to convert images in seconds.

Need to convert image formats but don't want to install software or upload files to unknown servers? Modern browser-based image converters let you convert between PNG, JPG, WebP, AVIF, BMP, TIFF, and ICO formats instantly - with complete privacy since files never leave your device.

This comprehensive guide covers everything you need to know about converting images in 2025, including step-by-step tutorials for every common conversion, why you might need each format, and which tools to use.

Why Convert Image Formats?

Different image formats serve different purposes. Here's why you might need to convert:

Convert to WebP or AVIF:

• Reduce file sizes by 60-85% for faster websites
• Improve SEO rankings (Google Core Web Vitals)
• Reduce hosting and bandwidth costs
• Better mobile performance

Convert to PNG:

• Add transparency to images
• Edit images in any photo editor (universal compatibility)
• Preserve perfect quality (lossless format)
• Create graphics and logos

Convert to JPG:

• Universal compatibility (works everywhere since 1992)
• Smaller files than PNG for photos
• Email and share images easily
• Print photos and documents

Convert from specialized formats:

• BMP to PNG/WebP - Reduce massive BMP files by 70-95%
• TIFF to PNG/JPG - Make scanned documents web-compatible
• ICO to PNG/JPG - Extract favicon icons for editing
• HEIC to JPG - Open iPhone photos on Windows/Android

How to Convert Images: Universal Method

This method works for converting between any image formats (PNG, JPG, WebP, AVIF, BMP, TIFF, GIF, SVG, ICO):

Step 1: Choose Your Conversion Tool

Select the appropriate converter based on your source and target formats:

• PNG to WebP - Convert PNG to modern WebP
• WebP to PNG - Convert WebP to universal PNG
• PNG to AVIF - Convert PNG to next-gen AVIF
• JPG to PNG - Convert JPEG to PNG with transparency support
• See complete converter list below

Step 2: Upload Your Image

1. Click "Choose File" or drag and drop your image
2. Supported formats: PNG, JPG, WebP, AVIF, BMP, TIFF, ICO, GIF, SVG, HEIC
3. Files process locally in your browser (100% private)
4. No file size limits on most conversions

Step 3: Convert and Download

1. Click "Convert to [Format]" button
2. Conversion happens instantly in your browser
3. Download your converted image
4. Original file remains unchanged

Result: Converted image in your chosen format, ready to use immediately.

How to Convert PNG Images

PNG (Portable Network Graphics) is a lossless format with transparency support. Convert PNG when you need modern compression or different compatibility.

Convert PNG to WebP

Why: Reduce PNG file sizes by 60-75% for faster websites while preserving quality.

Use our PNG to WebP converter:

1. Upload your PNG image (any size)
2. Click "Convert to WebP"
3. Download WebP image (60-75% smaller)

Best for: Website images, blog photos, product images, graphics with transparency.

Convert PNG to AVIF

Why: Reduce PNG file sizes by 70-85% with next-generation compression.

Use our PNG to AVIF converter:

1. Upload PNG file
2. Click "Convert to AVIF"
3. Download ultra-compressed AVIF image

Best for: Modern websites prioritizing performance, hero images, above-the-fold content.

Convert PNG to JPG

Why: Reduce file sizes when transparency isn't needed, universal compatibility.

Use our PNG to JPG converter:

1. Upload PNG image
2. Click "Convert to JPG"
3. Download JPG (transparent areas become white)

Best for: Photos without transparency, email attachments, printing, legacy compatibility.

Convert PNG to ICO

Why: Create favicon icons for websites, Windows app icons.

Use our PNG to ICO converter:

1. Upload PNG image (recommended: 512×512 or 256×256)
2. Click "Convert to ICO"
3. Download multi-size ICO file

Best for: Website favicons, Windows icons, app icons.

How to Convert WebP Images

WebP is Google's modern format with excellent compression. Convert WebP when you need compatibility or different formats.

Convert WebP to PNG

Why: Universal compatibility, edit in any photo editor, preserve transparency.

Use our WebP to PNG converter:

1. Upload WebP image
2. Click "Convert to PNG"
3. Download PNG (works everywhere)

Best for: Editing images, sharing with users on old browsers, printing, archiving.

Convert WebP to JPG

Why: Maximum compatibility, smaller files when transparency isn't needed.

Use our WebP to JPG converter:

1. Upload WebP file
2. Click "Convert to JPG"
3. Download universal JPEG

Best for: Email attachments, social media, printing, legacy device compatibility.

Convert WebP to AVIF

Why: 20-30% better compression than WebP for cutting-edge performance.

Use our WebP to AVIF converter:

1. Upload WebP image
2. Click "Convert to AVIF"
3. Download next-gen AVIF

Best for: Performance optimization, modern websites, progressive enhancement.

Convert WebP to PDF

Why: Create documents from images, archiving, printing.

Use our WebP to PDF converter:

1. Upload WebP file
2. Click "Convert to PDF"
3. Download PDF document

Best for: Archiving images as documents, combining multiple images into PDF, printing.

How to Convert AVIF Images

AVIF is the newest format with superior compression. Convert AVIF for broader compatibility.

Convert AVIF to PNG

Why: Universal compatibility, edit in any software, 100% browser support.

Use our AVIF to PNG converter:

1. Upload AVIF image
2. Click "Convert to PNG"
3. Download widely-compatible PNG

Best for: Sharing images, editing, ensuring maximum compatibility.

Convert AVIF to WebP

Why: Broader browser support (95% vs 90%) while maintaining excellent compression.

Use our AVIF to WebP converter:

1. Upload AVIF file
2. Click "Convert to WebP"
3. Download WebP (broader compatibility)

Best for: Websites targeting wider audiences, when AVIF support isn't guaranteed.

Convert AVIF to JPG

Why: Universal compatibility, share images with anyone, email attachments.

Use our AVIF to JPG converter:

1. Upload AVIF image
2. Click "Convert to JPG"
3. Download standard JPEG

Best for: Sharing photos, email, social media, printing.

How to Convert JPG Images

JPG (JPEG) is the most common photo format. Convert JPG when you need transparency, modern compression, or lossless quality.

Convert JPG to PNG

Why: Add transparency, preserve quality, edit without generation loss.

Use our JPG to PNG converter:

1. Upload JPG/JPEG image
2. Click "Convert to PNG"
3. Download lossless PNG

Best for: Graphics needing transparency, images requiring editing, logos and icons.

Convert JPG to WebP

Why: 30-50% smaller files for web use while maintaining quality.

Use our JPG to WebP converter:

1. Upload JPEG file
2. Click "Convert to WebP"
3. Download compressed WebP

Best for: Website photos, blog images, e-commerce product photos, performance optimization.

Convert JPG to AVIF

Why: 40-60% smaller files than JPEG with better quality at low bitrates.

Use our JPG to AVIF converter:

1. Upload JPG photo
2. Click "Convert to AVIF"
3. Download next-gen AVIF

Best for: Modern websites, maximum compression, cutting-edge performance.

Convert JPG to PDF

Why: Create documents from photos, combine multiple images, archiving.

Use our JPG to PDF converter:

1. Upload JPEG image(s)
2. Click "Convert to PDF"
3. Download PDF document

Best for: Archiving photos, creating photo books, document conversion.

How to Convert BMP Images

BMP (Bitmap) is an uncompressed format creating very large files. Always convert BMP to modern formats.

Convert BMP to PNG

Why: Reduce BMP file sizes by 70-90% with lossless quality.

Use our BMP to PNG converter:

1. Upload BMP file
2. Click "Convert to PNG"
3. Download compressed PNG (70-90% smaller)

Best for: Archiving old graphics, sharing BMP files, web use, editing.

Convert BMP to JPG

Why: Reduce massive BMP files by 95%+ for photos and sharing.

Use our BMP to JPG converter:

1. Upload BMP image
2. Click "Convert to JPG"
3. Download tiny JPEG (95% smaller)

Best for: Photos, email attachments, web publishing, storage savings.

Convert BMP to WebP

Why: Maximum compression (90-95% smaller than BMP) with excellent quality.

Use our BMP to WebP converter:

1. Upload BMP file
2. Click "Convert to WebP"
3. Download ultra-compressed WebP

Best for: Web optimization, modern websites, maximum file size reduction.

How to Convert TIFF Images

TIFF is used for scanned documents and professional photography. Convert TIFF for web compatibility.

Convert TIFF to PNG

Why: Web-compatible format, maintain quality, universal browser support.

Use our TIFF to PNG converter:

1. Upload TIFF or TIF file
2. Click "Convert to PNG"
3. Download web-friendly PNG

Best for: Scanned documents for web, archiving, editing scans.

Convert TIFF to JPG

Why: Smaller files, email scanned documents, universal compatibility.

Use our TIF to JPG converter:

1. Upload TIFF/TIF image
2. Click "Convert to JPG"
3. Download compressed JPEG

Best for: Emailing scans, sharing documents, printing.

Convert TIFF to WebP

Why: Modern web format, significantly smaller than TIFF, fast loading.

Use our TIFF to WebP converter:

1. Upload TIFF file
2. Click "Convert to WebP"
3. Download web-optimized WebP

Best for: Publishing scanned documents online, web archives, digital libraries.

How to Convert ICO Files (Favicons)

ICO files contain website favicons and Windows icons. Convert ICO to edit icons or for compatibility.

Convert ICO to PNG

Why: Edit icons in any photo editor, universal compatibility, extract favicons.

Use our ICO to PNG converter:

1. Upload ICO or favicon.ico file
2. Click "Convert to PNG"
3. Download editable PNG

Best for: Editing favicons, extracting website icons, graphic design work.

Convert ICO to JPG

Why: Universal compatibility, share icons easily, email attachments.

Use our ICO to JPG converter:

1. Upload ICO file
2. Click "Convert to JPG"
3. Download JPEG (transparency becomes white)

Best for: Sharing icons, universal viewing, archiving.

Convert Images to ICO

Why: Create website favicons, Windows app icons from any image.

Use our Image to ICO converter:

1. Upload any image (PNG, JPG, WebP, etc.)
2. Click "Convert to ICO"
3. Download multi-size favicon.ico

Best for: Creating website favicons, Windows icons, app icons.

How to Convert HEIC Images

HEIC is Apple's default iPhone photo format. Convert HEIC to open on Windows, Android, and web.

Convert HEIC to JPG

Why: Open iPhone photos on Windows/Android, universal compatibility.

Use our HEIC to JPG converter:

1. Upload HEIC photo from iPhone
2. Click "Convert to JPG"
3. Download universal JPEG

Best for: Sharing iPhone photos, Windows/Android compatibility, printing.

Convert HEIC to PNG

Why: Preserve quality, edit iPhone photos, transparency support.

Use our HEIC to PNG converter:

1. Upload HEIC file
2. Click "Convert to PNG"
3. Download PNG image

Best for: Editing iPhone photos, preserving maximum quality, graphics work.

All Image Converters (Complete List)

PNG Converters

• PNG to JPG - Convert PNG to JPEG
• PNG to WebP - Convert PNG to WebP (60-75% smaller)
• PNG to AVIF - Convert PNG to AVIF (70-85% smaller)
• PNG to ICO - Convert PNG to favicon ICO
• PNG to PDF - Convert PNG to PDF document

WebP Converters

• WebP to PNG - Convert WebP to PNG
• WebP to JPG - Convert WebP to JPEG
• WebP to AVIF - Convert WebP to AVIF (20-30% smaller)
• WebP to PDF - Convert WebP to PDF

AVIF Converters

• AVIF to PNG - Convert AVIF to PNG
• AVIF to WebP - Convert AVIF to WebP
• AVIF to JPG - Convert AVIF to JPEG

JPG Converters

• JPG to PNG - Convert JPEG to PNG
• JPG to WebP - Convert JPEG to WebP
• JPG to AVIF - Convert JPEG to AVIF
• JPG to PDF - Convert JPEG to PDF

BMP Converters

• BMP to PNG - Convert BMP to PNG (70-90% smaller)
• BMP to JPG - Convert BMP to JPEG (95% smaller)
• BMP to WebP - Convert BMP to WebP (90-95% smaller)

TIFF Converters

• TIFF to PNG - Convert TIFF/TIF to PNG
• TIF to JPG - Convert TIF to JPEG
• TIFF to WebP - Convert TIFF to WebP

ICO Converters

• ICO to PNG - Convert ICO to PNG
• ICO to JPG - Convert ICO to JPEG
• PNG to ICO - Convert PNG to ICO favicon
• Image to ICO - Convert any image to ICO

HEIC Converters

• HEIC to JPG - Convert iPhone HEIC to JPEG
• HEIC to PNG - Convert HEIC to PNG

Other Converters

• GIF to JPG - Convert GIF to JPEG
• GIF to PNG - Convert GIF to PNG
• SVG to PNG - Convert SVG to PNG

Image Format Comparison Table

Common Problems and Solutions

Problem: Converted image quality looks worse

Solution: Use higher quality settings when converting. For WebP, use quality 85-95. For JPG, use quality 90-95. For lossless conversion, convert PNG to PNG or use WebP lossless mode. Avoid converting between lossy formats multiple times (JPG → WebP → JPG causes quality loss).

Problem: Can't open converted image

Solution: Ensure your software supports the target format. WebP and AVIF require modern browsers/software. If using old software, convert to PNG or JPG for universal compatibility. Use our WebP to PNG converter or AVIF to PNG converter for maximum compatibility.

Problem: Transparency becomes white background

Solution: This happens when converting from formats with transparency (PNG, WebP, AVIF) to formats without transparency (JPG). If you need transparency, convert to PNG or WebP instead. Use JPG to PNG converter to add transparency support.

Problem: File size increased after conversion

Solution: Converting from compressed formats (JPG, WebP) to lossless formats (PNG) will increase file size. This is expected. For smaller files, convert to WebP or AVIF instead. Converting PNG to WebP typically reduces file size by 60-75%.

Problem: Need to convert hundreds of images

Solution: Use our converters one at a time, or for batch processing, look for batch image conversion tools. Each of our converters processes files instantly in your browser, so converting multiple images is fast.

Which Format Should You Use?

Use this decision guide to choose the right image format:

For Websites (2025 Recommendation)

Use WebP with PNG fallback:

• Convert all images to WebP using PNG to WebP or JPG to WebP
• Keep PNG originals as fallback for old browsers
• 60-75% smaller files = faster loading = better SEO

For Maximum Performance

Use AVIF with WebP/PNG fallback:

• Convert to AVIF using PNG to AVIF or WebP to AVIF
• Provide WebP and PNG fallbacks
• 70-85% smaller files = fastest possible loading

For Universal Compatibility

Use PNG or JPG:

• PNG for graphics with transparency (JPG to PNG converter)
• JPG for photos without transparency (PNG to JPG converter)
• Works on 100% of browsers and devices

For Email and Sharing

Use JPG:

• Universal compatibility across all email clients
• Smaller than PNG for photos
• Use PNG to JPG or WebP to JPG converters

For Editing

Use PNG:

• Lossless quality (no quality loss when re-saving)
• Full transparency support
• Works in all photo editors
• Convert using WebP to PNG or JPG to PNG

Privacy and Security

All our image converters process files entirely in your browser using client-side JavaScript:

✅ Complete Privacy - Files never leave your device ✅ No Uploads - No files sent to servers ✅ No Storage - Nothing saved or logged ✅ Instant Processing - No waiting for server processing ✅ Unlimited Use - No file limits or daily quotas ✅ No Account Required - No registration or signup needed

This is ideal for converting sensitive images, personal photos, confidential documents, and proprietary graphics.

Frequently Asked Questions

Conclusion

Converting images between formats is essential for web optimization, compatibility, and sharing. In 2025, browser-based converters offer the perfect solution - instant conversions with complete privacy since files never leave your device.

Key recommendations:

• For websites: Convert to WebP (60-75% smaller than PNG)
• For maximum compression: Convert to AVIF (70-85% smaller)
• For compatibility: Convert to PNG or JPG (works everywhere)
• For privacy: Use browser-based converters (no uploads)

Ready to convert your images? Choose your converter from the list above and start optimizing your images in seconds.

Most Popular Converters:

• PNG to WebP Converter - Reduce PNG files by 60-75%
• WebP to PNG Converter - Convert WebP to universal PNG
• PNG to AVIF Converter - Next-gen compression (70-85% smaller)
• JPG to WebP Converter - Optimize JPEG photos for web
• HEIC to JPG Converter - Convert iPhone photos to JPEG
• BMP to PNG Converter - Reduce BMP files by 70-90%

Related Articles:

• PNG vs WebP vs AVIF: Best Image Format for Web 2025
• How to Convert WebP Images: Complete Guide 2025
• How to Resize Images Without Losing Quality
• Best Tools to Fix Image Quality