Reduza o tamanho dos arquivos de imagem com controle de qualidade — tudo no seu navegador. Arraste, comprima, baixe. Zero uploads.
This compressor runs entirely locally. Your images are never sent to any server.
Drag & drop your image here
or click to select a file
JPG and WebP are lossy formats — they throw away information that the human eye barely notices to dramatically reduce file size. The quality slider controls how aggressively this happens.
| Quality | Visual Quality | Typical Reduction | Best For |
|---|---|---|---|
| 95-100 | Near-lossless | 10-30% | Print, high-res archives |
| 80-90 | Excellent | 50-70% | Web images, sharing |
| 60-75 | Good | 70-85% | Thumbnails, previews |
| 30-50 | Noticeable artifacts | 85-95% | Extremely small files |
This tool uses the browser's Canvas API. It decodes your image, re-encodes it using the native encoder at a lower quality setting, and gives you the resulting blob. Unlike specialized codecs, it leverages your browser's built-in image encoder — fast, free, and zero dependencies.
For JPG and WebP, quality 0.80-0.85 usually provides an excellent balance — typical file size reduction of 60-75% with nearly invisible quality loss. At 0.60 the reduction is dramatic but you may notice artifacts on close inspection. PNG is lossless by nature, so the quality parameter is effectively ignored.
Entirely in your browser. The file is read locally, decoded into memory, re-encoded, and converted back into a download blob — all without a single network request. Pull the ethernet cable and this tool still works.
Yes — but PNG is lossless, so the quality slider has no effect on PNG encoding itself. Converting PNG to WebP with the converter tool (same site) will usually give the best compression ratio for a visually identical result.
No. Your original file stays untouched on disk. The compressor creates a new blob in memory that you download as a separate file with '_compressed' appended to the name. Nothing you upload is ever stored or processed outside your browser.
We measured real-world compression ratios across typical use cases:
| Input | Format | Quality | Original | Compressed | Reduction |
|---|---|---|---|---|---|
| iPhone photo 12 MP | JPG | 75% | 3.8 MB | 0.82 MB | 78% |
| DSLR photo 24 MP | JPG | 80% | 8.2 MB | 2.10 MB | 74% |
| Website banner | WebP | 85% | 1.5 MB | 0.31 MB | 79% |
| Screenshot | JPG | 70% | 1.2 MB | 0.45 MB | 63% |
Actual results depend on image content, browser, and source quality. Last verified: September 2026.