Image Compression ▼
Image Conversion ▼
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Smart · Fast · No Upload
Drag files here or click to add
Supports AVIF compression
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Free AVIF compression with smart quality-size balance and real-time preview

All image processing is done locally in your browser via WebAssembly, ensuring privacy. Smart compression balances quality and size, supports batch processing, before/after comparison, and one-click download. Optimizes image loading and transfer efficiency for SEO, social media, email, and more.

  • What is AVIF?

    AVIF (AV1 Image File Format) is a next-gen image format based on AV1 video coding. It supports HDR, wide color gamut, and transparency, using less space than PNG, JPG, and WebP at equivalent quality. Supported by all major browsers and mobile devices.

  • Why compress AVIF?

    Native AVIF images have high quality but large file sizes, consuming storage and data, and slowing page and mini-program loading. Moderate compression produces nearly invisible differences while significantly reducing file size for faster opening and smoother uploads.

  • How does AVIF compression work?

    AVIF is based on AV1 intra-frame coding. Lossy mode uses adaptive quantization and chroma subsampling to reduce visual redundancy. Lossless mode uses fully reversible coding to preserve all pixel information. Quantization parameters can be adjusted to control compression strength, achieving high ratios while maintaining quality, transparency, and color detail.

  • Choose Quality Level?

    Use CaseQuality LevelCompression RatioNotes
    HD artwork, photography, premium display90-10010-30%Ultra HD, full detail, virtually no compression loss
    Web graphics, e-commerce, daily sharing75-8940-60%Natural quality, significantly smaller size, top choice for daily use
    Image thumbnails, list icons, previews60-7460-80%Moderate compression, compact and lightweight, meets basic display needs
    Extreme optimization, low-bandwidth, asset backupBelow 6080%+Minimal file size, ideal for fast loading and batch storage

  • Privacy & Security?

    No registration required. All processing is done locally in your browser via WebAssembly. Images are never uploaded to the cloud, collected, or stored. Your privacy is fully protected.

  • How to Use?

    1
    Adjust QualityAuto by default, or set a custom quality value
    2
    Add FilesSelect, select all, or drag and drop to compress
    3
    DoneClick thumbnails to compare before/after
    4
    SaveSave individual images or download all