What is the difference between Smooth and Crisp upscale modes?
Smooth mode applies multi-pass bicubic interpolation ideal for continuous photos, while Crisp mode preserves exact hard pixel edges for pixel art and retro sprites.
在线放大图片 — 高保真双三次或像素艺术无损放大
Upscale small photos cleanly with interpolation smoothing controls.
Drop images here to upscale and enlarge
Upscale resolution by 2x, 3x, or 4x with smoothing control
图片预览
如何使用 放大图像
1
选择并上传
Upload your low-resolution or small image into the stage.
2
配置和预览
Select your upscale factor (2x, 3x, 4x) and choose Smooth (photos) or Crisp (pixel art).
3
处理和下载
Click 'Enlarge Images' to process high-resolution output files.
技术架构与客户端隐私
Processing Engine
Browser Canvas 2D & Binary Transcoder
Privacy Model
100% In-Memory Sandbox · Zero Server Uploads
Format Standards
PNG, JPEG, WebP, SVG, ICO Specifications
Execution Speed
Zero Network Latency · Instant Local Output
Frequently Asked Questions
Can I enlarge very large images?
Yes, subject to your device's available browser RAM and canvas limits (typically up to 8192×8192 pixels).
Are there any subscription fees or watermarks?
Zero fees, zero subscriptions, and zero watermarks. All tools are 100% free.