How I Built a Browser-Based Batch QR Code Generator for 1,000 Items

Short summary

An engineering walkthrough of building a browser-based batch QR code generator for ZapQR that handles CSV, Excel, TXT, and manual input to produce up to 1,000 static QR codes per batch. The design treats batch generation as a data pipeline with normalization, empty-row handling, progress/cancellation UI, and ZIP packaging — all client-side with no server upload required. The 1,000-item cap balances usefulness against browser memory constraints across rendering, file conversion, and archiving costs.

• •Browser-based batch QR generator handles CSV/Excel/TXT/manual input up to 1,000 codes
• •Designed as a client-side data pipeline with normalization, progress UI, and ZIP export
• •1,000-item cap balances utility against browser memory and rendering costs

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