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Trình tạo mã QR màu

Colorful QR code generator: create QR codes with custom colors and size with logo and error correction for branding and events, one-click copy and offline.

Cách sử dụng

Nhập văn bản hoặc URL, chọn màu sắc và kích thước, nhấp vào tạo để xem trước và tải xuống PNG.

Overview

Colorful QR Code Generator is a image tool that Colorful QR code generator: create QR codes with custom colors and size with logo and error correction for branding and events, one-click copy and offline. It runs 100% in your browser with no upload, so you get instant results with privacy. Whether you need a quick answer or batch processing with precise control, you can enter, validate and export in seconds. The UI is responsive on mobile, tablet and desktop and supports one-click copy.

Use cases

  • Generate placeholders and watermarks
  • Crop/compress for social
  • Batch convert PNG/JPG/WebP
  • Check DPI and color mode for print
  • Use it to cross-check “彩色二维码、二维码生成” in reports, docs or APIs to avoid manual conversion errors

How to use

  1. 1 Drop images
  2. 2 Adjust size/quality/format
  3. 3 Compare before/after
  4. 4 Download or copy link

Highlights

  • Local & private: processing stays in your browser
  • Live validation with tolerant parsing
  • One-click copy and export for docs, code or sheets
  • Batch and offline support under poor network

Notes

  • Process large images in batches
  • Quality 70-85 balances size and fidelity
  • JPG drops alpha

FAQ

Uploaded?
No, processing is local.
Batch?
Yes, multi-select or folder drop.
How is Colorful QR Code Generator different?
It runs locally with a focus on speed and privacy, plus tolerant parsing for “彩色二维码、二维码生成” and one-click copy for reuse.
Can I use results in official reports?
Use it as a working draft and cross-check with authoritative sources; keep the exported log and parameters for traceability.
Tip：Tip: Bookmark this page or pin the tab; find related tools via categories and search (convert → calculate → export).
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All calculations run locally in your browser; nothing is uploaded.