Online Image Compressor
Smartly compress images, significantly reduce file size while maintaining high quality.
Drop images here
Supports JPG, PNG, WebP and other formats
Why Use the Image Compressor
Drastically Reduce Size
Smart compression algorithms can reduce file size by an average of 50-80%.
Maintain Quality
Preserve visual quality as much as possible while reducing file size.
Better Performance
Smaller files mean faster loading times and improved user experience.
Privacy Protection
Local processing - images are never uploaded to any server, ensuring your privacy.
How to Compress Images Online Free
Drag, Drop, and Compress
Drop your images onto the upload area, or click to select files from your computer. The online image compressor handles JPG, PNG, WebP, and most common formats. You can throw in a dozen files at once — batch compression works without any extra setup.
Pick Your Quality Level
The quality slider is where you control the trade-off. At 80-90%, your images stay print-ready. At 70-80%, they look the same on screen but the file sizes drop noticeably. At 60-70%, the compression is aggressive — good for thumbnails or previews where every kilobyte counts. The preview updates in real time, so you can see what you are getting before you commit.
Download and Done
When the compression finishes, you see exactly how much space each file saved. Grab them one by one or hit "Download All" to save everything in one go. Every byte stays in your browser — nothing gets uploaded to a server, which matters if you are compressing sensitive images or client work.
Image Compression Tips
Where Each Quality Setting Makes Sense
E-commerce product photos work well at 75-80%. The images stay sharp enough to sell, and the pages load fast enough that customers do not bounce away. Blog and social media images hit a sweet spot at 70-75% — screens display at 72 DPI, and most quality loss is invisible at that resolution. Email newsletters are a special case: email clients recompress images anyway, so pushing it to 60-70% rarely makes a visible difference.
Batch Compressing a Whole Folder
Nobody wants to compress images one at a time. PicEte's batch image compression handles tens of files at once, each with the same quality setting. Photographers dumping a shoot, developers optimizing an asset folder, content creators prepping a batch for a blog post — this is where the time saving really adds up. The summary shows total savings across all files, so you can see the impact at a glance.
Compress Before You Upload
Large images are the most common reason websites load slowly. A one-second delay can drop conversions by 7%. Running your images through a compressor before uploading them gives you faster pages, better search rankings, and lower bandwidth bills. The best part is it does not cost you anything in visible quality — the compression algorithm is smart enough to trim what you cannot see.
よくある質問
画像圧縮のやり方は？
画像をドラッグして、品質レベルを選択し、圧縮された画像をダウンロードします。
完全に無料ですか？
はい、利用制限なしで無料でお使いいただけます。
圧縮中に画像がサーバーにアップロードされますか？
いいえ。すべての圧縮はブラウザ内のCanvas APIを使用してローカルで行われます。画像がデバイスの外に出ることはありません。プライバシーが保証され、機密コンテンツにも安全にご利用いただけます。
どのファイル形式を圧縮できますか？
当社の圧縮ツールはJPG、JPEG、PNG、WebP、GIF、BMPに対応しています。圧縮はJPGとWebPフォーマットで最も効果的です。PNG画像の場合は、JPGまたはWebPへのフォーマット変換と組み合わせることで、品質への影響を最小限に抑えつつ80〜90%のサイズ削減が可能です。