Compress Image to 20 KB
Compress your image to about 20 KB - ideal for email thumbnails and lightweight blog images, upload limits, and lightweight sharing.
Tải ảnh lên
Đang chuẩn bị khung tải ảnh kéo thả...
Cần kết quả tốt hơn?
Nếu mức dung lượng mục tiêu quá chặt, hãy resize, crop hoặc đổi định dạng trước khi nén lại.
Đổi kích thước ảnh
Đặt kích thước chính xác trước khi đăng, upload hoặc gửi.
Cắt ảnh
Căn lại bố cục và loại bỏ khoảng thừa quanh chủ thể.
Đổi sang JPG
Tạo file ảnh chụp nhẹ và tương thích rộng.
Đổi sang WebP
Dùng định dạng web hiện đại, thường sắc nét và nhẹ hơn.
Nén ảnh
Giảm dung lượng cho web, email, giới hạn upload và chia sẻ.
Other size options
Need a different target? Try another preset size below.
Why 20 KB Is Often Required
Small file targets like this are common for exam portals, application forms, ID uploads, and systems that reject anything above a very specific size.
Best Format Hint
JPG or WebP usually reaches this target more easily than PNG for photos. If the image still stays too large, try Chuyển sang JPG or Chuyển sang WebP before compressing again.
Quick Rule of Thumb
The bigger the gap between the source file and 20 KB, the more likely you will need resizing or cropping in addition to compression.
How to Compress Image to 20 KB Without Losing Quality
The cleanest way to hit 20 KB is to treat it as a file-size target, not just a slider setting. Start by using the smallest image dimensions that still fit your final use case. Then apply compression in a format that suits the image type.
Start with a smaller resolution before compressing.
Use JPEG for photos and WebP for mixed content.
Remove EXIF metadata to save a few KB.
If the file is still too large, use Đổi kích thước ảnh to reduce dimensions first, or Cắt ảnh to remove unused areas before trying again.
Best Use Cases for 20 KB Images
Resize vs Compress to 20 KB
Compression reduces file weight, while resizing changes the actual image dimensions. If your goal is to meet a strict upload rule like 20 KB, compression should usually be the first step. But if the original image is extremely large, resizing can make the target much easier to reach.
A practical workflow is: compress first, then resize if needed, then compress again. That is why this long-tail page works best as part of a bigger image optimization flow, not as a one-click guarantee for every file.
Build a Better Compression Workflow
If one pass does not get your image close enough to 20 KB, move through the rest of the toolkit instead of forcing extreme compression. Start with Nén ảnh for flexible quality control, use Đổi kích thước ảnh for oversized uploads, and switch formats with Chuyển sang JPG or Chuyển sang WebP when the file format is the real bottleneck.
Cách hoạt động
Tải ảnh lên
Chọn ảnh hoặc đồ họa để nén.
Dung lượng mục tiêu
We compress to approximately 20 KB.
Tải xuống
Lưu tệp đã tối ưu ngay.
Câu hỏi thường gặp
Yes, for small previews and low-detail images.