segno
QR Code and Micro QR Code generator for Python
Decision gist · record as of 2026-08-14
Yes. Segno is a stable, actively maintained library with no vulnerabilities, low install friction, and a permissive license. It is well-suited for any Python project needing QR code generation without external compiled dependencies. The broad format support and standards compliance make it a practical choice for production use.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Low friction: pure Python with only importlib-metadata as a runtime dependency.
- Active maintenance with a recent commit on 2026-07-23 and no reported vulnerabilities.
License · maintenance · safety
permissive license (permissive) — Permissive license (BSD) allows commercial and private use with minimal restrictions.
last release 2025-03-12 (520 days) · last repo commit 2026-07-23 · 795 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 3,234,809 downloads/mo, #2,689 on PyPI
Alternatives
Verify before relying
pip install segno
import segno
qrcode = segno.make('Yellow Submarine')
qrcode.save('yellow-submarine.png')- Whether the package's claimed 98% test coverage and ISO/IEC 18004:2015(E) conformance have been independently validated
- Performance comparison claims against other pure-Python QR encoders and whether they remain current
What it is and what it does
Segno is a pure-Python QR code and Micro QR code generator that implements the ISO/IEC 18004:2015(E) standard. It encodes data into QR codes with no external compiled dependencies, relying only on importlib-metadata. The library supports both standard QR codes and the smaller Micro QR variant, automatically choosing the minimal version needed or allowing explicit control via factory functions like make_qr() and make_micro().
The package outputs to many formats—SVG, PNG, PDF, EPS, PAM, PBM, PPM, LaTeX (PGF/TikZ), XBM, and XPM—all without requiring external libraries. It includes high-level functions for encoding contact data (vCard, MeCard), EPC QR codes, and WiFi configurations, plus a command-line interface for quick generation. Structured Append mode allows splitting large messages across multiple QR codes, and Hanzi mode supports Chinese character encoding.
Use it for
- Generate QR codes for URLs, contact information, or WiFi credentials in web applications or scripts
- Create Micro QR codes for space-constrained applications like product labels or small displays
- Export QR codes to multiple formats (PNG, SVG, PDF) for printing, web embedding, or document inclusion
- Encode structured data like vCard contact information or EPC payment codes into scannable QR codes
- Split large messages across multiple QR codes using Structured Append mode for resilience or distribution
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes.
Segno is a stable, actively maintained library with no vulnerabilities, low install friction, and a permissive license. It is well-suited for any Python project needing QR code generation without external compiled dependencies. The broad format support and standards compliance make it a practical choice for production use.
Install
segno on PyPI
Before you install
Low friction: pure Python with only importlib-metadata as a runtime dependency. Active maintenance with a recent commit on 2026-07-23 and no reported vulnerabilities.
License in practice
Permissive license (BSD) allows commercial and private use with minimal restrictions.
Quickstart
pip install segno
import segno
qrcode = segno.make('Yellow Submarine')
qrcode.save('yellow-submarine.png')Verify before relying
- Whether the package's claimed 98% test coverage and ISO/IEC 18004:2015(E) conformance have been independently validated
- Performance comparison claims against other pure-Python QR encoders and whether they remain current
Package facts
| License | permissive license permissive |
| Python support | Supports the current Python release >=3.5 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 1 packageimportlib-metadata |
| Maintenance | Actively maintained 520 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 3,234,809 / month, #2,689 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 5 - Production/StableIntended Audience :: DevelopersLicense :: OSI Approved :: BSD LicenseOperating System :: OS IndependentProgramming Language :: PythonProgramming Language :: Python :: 3Programming Language :: Python :: 3 :: OnlyTopic :: Multimedia :: GraphicsTopic :: PrintingTopic :: Software Development :: Libraries :: Python ModulesTopic :: Utilities |
Evidence: segno-1.6.6-py3-none-any.whl
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