Free online tools for colors, files, and mockups
Clean, fast utilities in one place — colors, images, QR & barcodes, PDFs, and a free 3D phone mockup editor. Everything runs privately in your browser.
Tool categories
Pick a category to open tools. Color, image, QR, PDF, and mockups are live.
Colors
Pick, convert, check contrast, generate palettes, gradients, and colored shadows, explore wheels, and browse named colors.
Images
Compress, scan documents & IDs, convert to PDF, resize, crop, blur, sharpen, Base64, and more — all in your browser.
QR & Barcodes
Generate and scan QR codes and barcodes — WiFi, vCard, geo, styled logos, PNG/SVG/PDF print — private, in your browser.
Merge, split, compress, rotate, images↔PDF, and more — private, in-browser.
Mockups
Free Android phone mockups and 3D mockup tool — drop a screenshot onto devices and export studio-quality PNG.
New · Mockups
Free Android 3D phone mockup editor
Simple Android mockup tool — drop a screenshot onto a real phone or laptop model, light it like a product shot, and export HQ PNG. Built for app launches and stories, not flat PNG frames.
Featured color tools
Pick colors, build palettes, and explore named colors worldwide.
Pick any color and get HEX, RGB, and HSL instantly.
Convert between HEX, RGB, and HSL with live preview.
Check WCAG contrast, preview text, and fix failing pairs.
Explore harmonies on an interactive color wheel — complementary, analogous, triadic, and more.
Build harmonious palettes from a single seed color.
Extract a color palette from any image with draggable pick points.
Create linear, radial, and mesh gradients — copy CSS or download PNG.
Build colored inner and outer shadows — pick colors, stack layers, copy CSS.
Browse all color names — HTML, CSS, Tailwind, Material, and community lists.
Why Mewix
Most online tools upload your files to a server. Mewix keeps processing local: pick colors, edit images, generate QR codes, work with PDFs, and build device mockups without sending your content elsewhere. That means faster results and stronger privacy for designers, developers, and everyday users.
Start from the homepage categories, jump into a featured color tool, or open the 3D mockup editor landing when you need a realistic phone or laptop frame for a screenshot.
FAQ
Yes. Color, image, QR, PDF, and mockup tools run in your browser. Files and screenshots stay on your device — we do not upload them to a server for processing.