Custom QR Code Generator
POPULARCreate high-resolution QR codes with custom colors, URLs, Wi-Fi networks, emails, and download as PNG/SVG.
How Custom QR Code Generator Works & Key Use Cases
Custom QR Code Generator provides software engineers, designers, and daily users with an instantaneous, in-browser solution. Traditional online converters send your private payloads over public networks, creating potential compliance and data leakage risks. With ZeroUpload, every transformation is executed locally in your browser memory via dedicated background Web Workers.
Zero uploads, zero telemetry, and zero remote logging. Sensitive credentials remain local to your CPU.
Eliminates network latency. Computations happen at native browser speeds without cloud queue delays.
Installable as a desktop or mobile application. Works seamlessly on airplanes, trains, or offline.
More Image & Media Utilities
Client-Side Image Compressor
Compress PNG, JPG, and WebP images directly in your browser with target file size and resolution controls.
Image Format Converter (WebP, PNG, JPG)
Convert images to WebP, PNG, or JPEG with adjustable quality settings using browser Canvas.
SVG Optimizer & Minifier
Clean SVG files, strip metadata, comments, and unused attributes for maximum web performance.
Image Color Palette Extractor
Extract dominant color palettes and Hex/RGB swatches from uploaded images using Canvas pixel sampling.
Image to Base64 & Base64 to Image Decoder
Convert PNG, JPG, SVG to Base64 data URIs, HTML img tags, and decode Base64 back to image files.
SVG Placeholder & Dummy Image Generator
Create customized SVG and WebP placeholder images with custom dimensions, colors, and Data URIs.
SVG to PNG, WebP & JPEG Converter
Convert scalable vector graphics (SVG) to raster images (PNG, WebP, JPEG) with Retina 2x/4x/8x scaling and custom background transparency.
Base64 Image Encoder & Decoder Studio
Convert PNG, JPEG, WebP, SVG files into compact Base64 Data URIs, or decode raw Base64 strings back to downloadable image files.