Image Compression ▼
Image Conversion ▼
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Smart · Fast · No Upload
Drag files here or click to add
Supports WebP compression
Auto

Free WebP 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 WebP?

    WebP is a lightweight image format by Google, supporting lossy/lossless compression and transparency. It is ~25-35% smaller than JPG and ~26% smaller than PNG at equivalent quality. Fully supported by Chrome, Firefox, Safari, Edge, and major mobile browsers, it is the mainstream choice for web and online images.

  • Why compress WebP?

    Some original WebP files are still large, consuming storage and data, slowing page loads, and hitting platform upload limits. Moderate compression reduces file size significantly with no visible quality change, enabling faster uploads and smoother loading.

  • How does WebP compression work?

    WebP is based on VP8 intra-frame coding. Lossy mode compresses image blocks through predictive and transform coding, then outputs via boolean entropy coding. Lossless mode uses inverse transforms and color caching for fully reversible compression. Quantization parameters can be adjusted to control compression strength, achieving high compression ratios while preserving quality and transparency.

  • Choose Quality Level?

    Use CaseQuality LevelCompression RatioNotes
    HD posters, photography, premium assets90-10010-30%Maximum clarity, full detail, virtually no compression loss
    Web graphics, e-commerce, social sharing75-8940-60%Natural quality, moderate size, best value for daily use
    Homepage thumbnails, list icons, content previews60-7460-80%Stronger compression, compact size, meets standard display needs
    Batch storage, low-bandwidth, minimal displayBelow 6080%+Minimal file size, ideal for fast loading and bulk 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