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Designers and front-end teams

Color contrast checker & HEX to RGB converter

Color StudioPalettes, conversions and a live UI preview
Color Contrast CheckerWCAG AA and AAA for text, large text and UI

Designer tools for working with color: convert HEX, RGB, HSL, HSV and CMYK, generate harmonious palettes, preview UI themes, and check WCAG contrast for accessible interfaces.

Other tools

Also on AlwaysReach.

EngineeringWeight, fits, threads, units and STEP files UtilitiesDeveloper and everyday utilities

Design tools

This page lists only design tools. Other categories are linked above.

AlwaysReachlwaysReach

Free tools for people who build, design and solve. AlwaysReach is an independent site. No account. Files stay in your browser whenever the tool can run locally.

Engineering

CAD Viewer
CAD Converter
Weight Calculator
STEP, STP, IGES & IGS weight
Unit Converter
Thread Calculator
Tolerance Calculator

Design

Color Studio
Contrast Checker

Utilities

Image Compressor
JSON Formatter
QR Generator
Compare / Diff
Case / Paragraph

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