Ask HN: QR Codes Unsuitable for Storing Gigabytes and Beyond in Graphic Format?

• paperback

  18 1,046 7.2 Rust

  Paper backup generator suitable for long-term storage.

Yes. QR codes are meant to store only a few kilobytes at most. They are not suitable for encoding gigabytes of data.

At perhaps 2KB per page, you'd need 524288 pages to store a 1GB. That's 1048 reams. Please just use an archival optical disk instead.

Even if the scheme using multiple QR codes in sequence rather than a single large code block. The paper backup implementations that use QR codes https://github.com/intra2net/paperbackup https://github.com/cyphar/paperback are only meant to be used for private key backup.

• paperbackup

  1 134 0.0 Python

  Create a pdf with barcodes to backup text files on paper. Designed to backup ASCII-armored GnuPG and SSH key files and ciphertext.

  

Yes. QR codes are meant to store only a few kilobytes at most. They are not suitable for encoding gigabytes of data.

At perhaps 2KB per page, you'd need 524288 pages to store a 1GB. That's 1048 reams. Please just use an archival optical disk instead.

Even if the scheme using multiple QR codes in sequence rather than a single large code block. The paper backup implementations that use QR codes https://github.com/intra2net/paperbackup https://github.com/cyphar/paperback are only meant to be used for private key backup.

• InfluxDB

  www.influxdata.com sponsored

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

• qr-backup

  5 57 3.8 Python

  Paper backup of files using QR codes

We don't know of anyone who's been able to reliably print more than 5 KB per page using QR codes on paper. How many pages do you want to use? See https://github.com/za3k/qr-backup/blob/master/docs/FAQ.md

Suggest a related project