WebP compressor
Free WebP compressor in your browser. Pick a compression percent to hit a target file size. Files stay on this device. Nothing is uploaded.
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Output WebP
Drop images here
or click to choose. Paste works too.
Files never leave this device. Compression runs in your browser.
Why compress WebP?
WebP already packs well, but exports and screenshots still overshoot bandwidth budgets. Compressing WebP to a target size keeps the modern container while cutting payload for pages and apps that support it.
What changes in the file
- Output stays WebP
- Encoder quality is searched to approach your size target
- EXIF and other metadata are not preserved through the WASM encode path
- If quality alone cannot hit the budget, the image is scaled down and re-encoded
How to compress WebP
- Open the WebP compressor and drop one or more images (any supported source format).
- Choose a compression percent (or a preset). The tool computes target size as original × (1 − percent/100).
- Start compression. Encoding runs locally with WASM codecs and downloads as WebP.
About WebP
WebP is a modern web image format from Google. It can encode lossy or lossless images and supports transparency, often beating JPG and PNG on size at similar visual quality.
Compress other formats
FAQ
- Does this WebP compressor upload my files?
- No. Detection, decode, and WASM encode all run in your browser. Formatly never receives the image bytes for compression.
- What does the compression percent mean?
- It is a size budget, not a vague quality label. 90% compression on a 50 MB file targets about 5 MB (keep 10% of the original size). The encoder searches quality and, if needed, scale to approach that budget.
- Can I compress other formats into WebP?
- Yes. Drop JPG, PNG, WebP, HEIC, and other supported sources; the page exports WebP. On this page the output format is fixed to WebP.
Convert WebP
Prefer format conversion? Open the image converter.