浏览器本地图片工具

转换、缩放、压缩并重塑任意图片。

PicRecast 是处理已有图片的可靠工作台。本地转换、尺寸调整与单图压缩现已可用;由 provider 支持的 AI Recast 仍是内部预览。

可用本地模式在浏览器中处理图片字节;受门禁保护的 AI 模式会单独披露 provider 处理。

图片工具

从 20 个由 registry 管理的工具中选择。每个页面都会准确标明可用本地处理与内部预览 AI 模式。

PNG to JPG Converter
Convert one PNG image to a real JPEG locally in your browser, with quality and transparency background controls.
JPG to PNG Converter
Convert one JPG or JPEG image to a real, opaque PNG locally in your browser, with EXIF orientation normalized into the pixels.
WebP to PNG Converter
Convert one static WebP image to a real PNG locally in your browser while preserving transparent and semi-transparent pixels.
WebP to JPG Converter
Convert one static WebP image to a real JPEG locally with quality control and explicit transparency-background compositing.
AVIF to JPG Converter
Convert one static AVIF image to a real JPEG locally with quality control and explicit transparency-background compositing.
SVG to PNG Converter
Safely validate and rasterize one self-contained SVG to PNG locally with scale, dimensions, and background controls.
Image Resizer
Resize, fit, crop, circle-crop, or pad one JPG, PNG, or static WebP locally with precise dimensions, position, zoom, anchors, and output controls.
Image Compressor
Compress one JPG, PNG, or static WebP locally, compare the real encoded size, and download with honest no-improvement reporting.
JPG Compressor
Compress one JPG or JPEG locally with explicit quality control and real before-and-after file sizes.
PNG Compressor
Losslessly optimize one PNG locally with OxiPNG while preserving dimensions, transparency, and exact pixels.
WebP Compressor
Compress one static WebP locally with quality control while preserving its Alpha channel.
Reduce Image Size in KB
Compress one JPG, PNG, or static WebP toward a custom decimal KB or MB target using verified local output bytes.
Compress Image to 20KB
Compress one image toward 20,000 bytes with truthful strict or keep-dimensions result reporting.
Compress Image to 50KB
Compress one image toward 50,000 bytes with a bounded local quality and optional dimension search.
Compress Image to 100KB
Compress one image toward 100,000 bytes while preserving format by default and WebP or PNG transparency.
Compress Image to 200KB
Compress one image toward 200,000 bytes with lossless PNG optimization or bounded JPG/WebP quality search.
内部预览
AI Image Expander
Prepare and expand an existing image toward a chosen aspect ratio and direction through PicRecast's gated AI Recast workflow.
内部预览
AI Outpainting
Continue the scene around an existing image with controlled direction, ratio, and scene guidance through the gated AI Recast workflow.
内部预览
Change Image Aspect Ratio
Change an image ratio with real local Crop or Fit modes, or use gated AI Expand without stretching the source.
内部预览
Background Extender
Extend a background locally with solid color or real blurred pixels, or use the gated AI background workflow.

本地与隐私

当前转换和尺寸调整流程在浏览器中运行,不会把图片上传到应用服务器。

验证真实输出

按内容检查输入、执行资源限制,并在下载前验证编码输出的签名和尺寸。

统一共享架构

同类页面复用共享引擎、Worker、策略与 registry 元数据,不复制脆弱的图片逻辑。

实用格式覆盖

支持常见位图格式转换、安全栅格化自包含 SVG、在支持的浏览器解码静态 HEIC,以及调整 JPG、PNG 与静态 WebP。

打开图片转换器
内部预览

AI Recast 内部预览

四个 AI Recast 工作流已有真实页面、共享基础设施和可用的本地模式。由 provider 支持的生成仍为内部预览,尚未公开开放。

当前不展示 AI 积分、购买入口、公开 provider 访问或生产承诺。

探索 AI Recast

常见问题

图片会上传吗?

转换、尺寸调整、压缩、Crop、Fit、Solid 和 Blur 均在本地运行;受门禁保护的 AI 模式只会在明确授权后向已披露 provider 发送准备后的像素。

目前支持哪些格式?

实时工具目录精确展示当前格式与路由;不可用组合不会发布为工具。

可以裁剪或添加留白吗?

可以。尺寸调整支持适应、裁剪、留白、九个锚点和多种尺寸方式。

有独立图片压缩工具吗?

有。图片压缩工具会在本地处理一张 JPG、PNG 或静态 WebP,并在下载前展示真实输出大小。

AI Recast 已公开可用吗?

没有。页面、共享引擎和本地混合模式已经实现,但 provider 生成仍是关闭的内部预览。