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What is ICNS?

Apple Icon Image (ICNS) is the native icon format for macOS, supporting multiple resolutions including Retina in a single file.

What is BPG?

Better Portable Graphics (BPG) is a modern image format based on HEVC video compression, offering excellent compression efficiency.

When Should You Use ICNS vs BPG?

Use ICNS When...

Reach for ICNS when your priority is macos application icons, retina display icons — its uncompromising quality ensures every detail is preserved.

Use BPG When...

Reach for BPG when your priority is web images with superior compression — its efficient compression makes sharing fast and storage minimal.

ICNS vs BPG: Key Differences

  • •ICNS uses lossless compression while BPG uses lossy compression — this is the fundamental technical difference between the two formats.
  • •Converting from ICNS to BPG changes compression type: lossy source becomes smaller but with some quality tradeoff.
  • •Transparency: Supports alpha channel — converting from ICNS will merge transparency into a solid background
  • •Storage footprint: 100KB to 5MB for multi-resolution icons for ICNS vs 30-50% smaller than JPEG at same quality for BPG.
  • •Use case fit: ICNS targets macos application icons, retina display icons and BPG targets web images with superior compression — your choice depends on which workflow stage you are serving.

Advantages of ICNS

  • ✓The lossless nature of ICNS means file sizes stay reasonable while handling macOS application icons, Retina display icons efficiently.
  • ✓From mobile devices to enterprise servers, ICNS is recognized and supported everywhere.
  • ✓The trade-off for ICNS's perfection is larger files — but for archival work, it is worth every megabyte.
  • ✓ICNS is a first-class citizen in all major software ecosystems, from creative suites to development environments.

Advantages of BPG

  • ✓BPG compresses data using lossy methods, keeping file sizes manageable for Web images with superior compression.
  • ✓Industry-wide support means BPG files open anywhere — from legacy systems to the latest devices.
  • ✓Small file sizes make BPG ideal for email, web uploads, and cloud storage.
  • ✓From professional software to open-source alternatives, BPG works out of the box.

Common Use Cases for ICNS to BPG Conversion

  • E-commerce product images
  • Email marketing campaigns
  • Presentation graphics
  • Blog and article illustrations
  • Mobile app UI assets
  • Product photography for marketplaces

Industry Applications

E-commerceDigital ArtUI/UX DesignAdvertisingBrand ManagementContent Management

Best Practices for ICNS to BPG Conversion

  • →When converting ICNS to BPG, check whether BPG supports transparency — if not, your transparent areas will be filled with a solid color
  • →Use BPG for maximum quality archival and ICNS for lossless workflows
  • →Optimize images for web to reduce page load times — tools like our converter let you adjust quality settings before conversion
  • →Maintain original aspect ratio to avoid distortion during conversion
  • →Always keep a backup of your original files before converting
  • →Choose the appropriate quality settings for your specific use case

Related Article

JPG vs PNG vs WebP: Which Image Format Should You Use?

Learn more about ICNS and BPG formats in our detailed guide.

Troubleshooting ICNS to BPG Conversion

  • !Converting ICNS to BPG gives blurry output → increase the quality setting before conversion
  • !Colors look different in BPG than ICNS → check color profile mismatch (sRGB vs Adobe RGB)
  • !File size changed more than expected → BPG uses different compression, file size differences of 2-5x are normal
  • !Transparent areas in ICNS turned white in BPG → BPG may not support transparency

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Convert ICNS to BPG Online - Free & Fast

Convert ICNS files to BPG online for free. High-quality conversion with no registration required.

Image Converter

Upload or enter a URL to convert ICNS to BPG instantly

Click to upload or drag & drop ICNS file

or paste from clipboard

.icns,.ICNS (max 100MB)

SSL EncryptedAuto-deleted in 1 hourProcessed securelyNo registration needed

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About ICNS and BPG

ICNS

ICNS (ICNS icons) - Apple Icon Image, high-resolution macOS icon format. Best for macos application icons, retina display icons.

BPG

BPG (BPG images) - Better Portable Graphics, high-efficiency image codec. Ideal for web images with superior compression.

Format Comparison

CompressionLossless → Lossy
TransparencyN/A
Use CaseConvert from macos application icons, retina display icons to web images with superior compression
File Size~30-50% smaller than JPEG at same quality after conversion

FAQs

Is converting ICNS to BPG free?

Yes, GoConvertFile offers free conversion of ICNS to BPG for files up to 100MB. No registration required.

How long does it take to convert ICNS to BPG?

Most ICNS to BPG conversions complete within seconds for standard-sized files. Larger files may take longer depending on the conversion complexity.

What is BPG best used for?

BPG is ideal for web images with superior compression. Better Portable Graphics, high-efficiency image codec

Does converting ICNS to BPG lose quality?

Yes, converting ICNS to BPG uses lossy compression, which reduces file size by discarding some visual data. Set quality to 85-95% for a good balance of quality and file size.

What file size should I expect after converting ICNS to BPG?

BPG files are typically 50-80% smaller than ICNS files because BPG uses efficient lossy compression. The exact reduction depends on quality settings.

Will transparency be preserved when converting ICNS to BPG?

No, BPG does not support transparency. Any transparent areas in your ICNS will be filled with a solid color (usually white) during conversion. Use PNG or WebP if transparency is needed.

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