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A Paper Size to PX

A Paper Size to PX tool, quickly converts A-series paper (A0-A13) to pixel dimensions, supports custom DPI/PPI, convenient for design and printing calculations.

RGB/CIELab Conversion

RGB and CIELab color code bidirectional conversion tool, achieving precise color interconversion.

QR Code Generator

Online QR code generator, quickly converts text and URLs into customizable QR code images, supporting multiple content formats.

A Paper Standard Size Query

Query A series paper standard sizes, providing a millimeter/inch comparison table and diagram.

PX/EM Converter

Online PX/EM unit converter, quickly converts between pixels and EM units, custom root font, improves CSS development efficiency.

PX/Percentage Converter

Easily convert pixel (PX) values to percentages (%) for responsive layouts and CSS development.

RGB/CMYK Conversion

Online RGB/CMYK color code bidirectional conversion tool, supports multiple input formats, quickly obtains target color values, and improves work efficiency.

Weibo Image Recognition

Quickly identify Weibo image bloggers, provide image URL parsing, and easily obtain social media image sources.

RGB/HEX Conversion

RGB/HEX mutual conversion tool, easily convert color codes to meet your color needs.

RGB/XYZ Conversion

Online RGB and XYZ color space bidirectional conversion tool, providing color code interconversion function, convenient for web design and image processing.

RGB/HSL Conversion

RGB/HSL color code interconversion tool, quickly convert colors.

B Paper Size to PX

B-series paper size to pixel tool, accurately calculates the pixel width and height of paper based on DPI.

QR Code Parser

Online QR code image content parsing, quickly identify various QR code information, support multiple image formats.