Image Resizer — Resize by Pixels, Percent & Aspect Ratio
Resize images by width, height, percentage, or exact dimensions. Aspect ratio lock. Files never upload.
Drop an image here, or
Max 25 MB. Files never leave your browser.
Source
× · ·
Output
Processing…
× · · (%)
Cách dùng
- 1 Drop an image.
- 2 Pick resize mode — by width, by height, by percentage, or exact both.
- 3 Keep aspect ratio on for proportional resize.
- 4 Download the resized result.
Vì sao dùng công cụ này
- Four resize modes — covers every common workflow.
- Aspect-lock prevents accidental distortion.
- Choose output format separately from resize.
- Pure client-side — no upload, no signup, no watermark.
Câu hỏi thường gặp
What is the maximum image size?
25 MB input, 10000×10000 px output. Larger inputs are blocked to prevent browser OOM on mobile.
Will it upscale?
Yes — percent mode supports up to 400%, and exact width/height can exceed source dimensions. Upscaling results in blurry output since there is no detail to invent.
Why is the output sometimes blurry after resize?
Browser canvas uses bilinear filtering by default. For very large downscales, consider doing it in two steps, or use a dedicated tool with Lanczos filtering.
Image Resizer là gì?
An Image Resizer is a tool that changes the dimensions of an image by width, height, percentage, or exact pixel dimensions. It offers an aspect ratio lock to keep proportions intact while scaling. The tool runs entirely in the browser using client-side processing, so files are never uploaded to a server, making it suitable for quickly preparing images at a target size.
Image Resizer là công cụ sáng tạo miễn phí của Zerethon Tools. Resize images by width, height, percentage, or exact dimensions. Aspect ratio lock. Files never upload. Chạy hoàn toàn trong trình duyệt — không đăng ký, không tải lên.
- Danh mục
- Sáng tạo
- Giá
- Miễn phí
- Quyền riêng tư
- Chạy trên trình duyệt
- Đăng ký
- Không cần
Quyền riêng tư
Dữ liệu của bạn không bao giờ rời khỏi trình duyệt trừ khi được nêu rõ. Image Resizer chạy hoàn toàn phía client — không tải lên máy chủ, không ghi log, không theo dõi dữ liệu bạn nhập.
Hướng dẫn
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