什么是 ToolFK AI 图像放大？
ToolFK AI 图像放大 2×–4× 恢复细节，适合老扫描件与社媒小图。先 修图 再放大效果更佳。
主要功能
- 2×, 3×, and 4× upscale presets on supported models
- Detail recovery on faces, fabric, and foliage
- Batch queue for multiple files
- PNG/JPG output up to page max dimensions
- Browser-based—no GPU required locally
- Free tier with VIP for heavy batches
How to Upscale Images with AI Image Upscaler
- 打开 the AI Image Upscaler page.
- 上传 a JPG or PNG (start from the highest quality you have).
- Select upscale factor and model if options appear.
- Start processing and wait for the job queue.
- Compare before/after in the preview slider.
- 下载 the upscaled image for print or further editing.
适用场景
- Printing low-res phone photos on posters
- Enlarging ecommerce thumbnails for zoom views
- Restoring scanned film and document photos
- Preparing game assets from small concept art
- Boosting AI art before video animation
相关工具
- AI Image Editor — fix artifacts pre-upscale
- Background Remover — isolate subjects after upscale
- Wan Image To Video — motion from enhanced stills
Frequently Asked Questions
Will upscaling invent fake details?
AI guesses texture; verify portraits and text logos manually before client delivery.
Is there a maximum output size?
Page limits cap megapixels—split panoramas if you hit errors.
Can it upscale animated GIFs?
Upload still frames or use video tools; GIF support varies.
Does it fix JPEG compression blocks?
It helps but cannot fully recover heavily compressed artifacts—request originals when possible.
How long do jobs take?
Large 4× jobs may take minutes; keep the tab open until download appears.
Can I upscale transparent PNGs?
Yes; alpha channels are preserved on supported builds.
最后更新：2026年7月1日