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Software · Utilities & files

Tessera

Mosaic Generator (QR Code).

  • Completely free
  • Linux
  • Open source

Overview

File formats mentioned: SVG and PNG.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

At a glance

Tessera is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (EUPL-1.2) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

  • Open source code
  • Commercial use allowed

About

Tessera generates digital mosaics (QR codes) from any text or URL, with full control over how they look and where they end up. Features: Live preview as you type Custom foreground color, with a warning if contrast is too low to scan reliably Four error correction levels (Low, Medium, High, Quartile) Export as PNG or SVG Copy to clipboard from the menu or with a single click on the mosaic Persistent preferences for default color and error correction level

Description from Flathub — AppStream (Flathub)

Sources and checks

  • Facts collected from Flathub (credit card, publisher, licence, free status, platforms, commercial use, version) —
  • Last technical check: 8 November 2026
  • Description from Flathub — AppStream (Flathub)

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