What is idna?
Python library for Internationalized Domain Names in Applications (IDNA) and Unicode IDNA Compatibility Processing. Supersedes the standard library's encodings.idna with broader script coverage and security vulnerability filtering.
idna pricing
We don't have idna's full plan breakdown yet (its pricing page resisted automated reading). Here's what we could confirm. Always check live pricing for exact numbers.
Free and open-source
idna FAQ
Common questions about idna, answered from independent, dated evidence.
What is idna used for?
idna is a Python library for processing and validating internationalized domain names—domain names containing characters from multiple languages and writing systems. It's used in applications to reliably handle encoding, decoding, and validation of these domain names.
Source: https://pypi.org/project/idna/
How does idna compare to Python's standard library?
idna supersedes Python's standard library IDNA implementation by offering broader script coverage and including security vulnerability filtering. This makes it a more comprehensive option for applications requiring robust international domain name handling.
Source: https://pypi.org/project/idna/
Is idna free to use?
Yes, idna is open source software with no licensing fees or usage charges. You can use it freely in any Python project.
Source: https://pypi.org/project/idna/
What is an internationalized domain name?
An internationalized domain name (IDN) is a web address containing characters from non-Latin writing systems—such as Chinese, Arabic, Cyrillic, Greek, or other scripts—allowing users to register and access domains in their native languages.
Source: https://pypi.org/project/idna/
Does idna include security features?
Yes, idna includes security vulnerability filtering as part of its domain name processing. This helps protect applications from security issues that can arise from improper handling of Unicode and international domain names.
Source: https://pypi.org/project/idna/
What platforms does idna support?
idna is a Python library distributed via the Python Package Index (PyPI). It integrates into Python projects on any platform that supports Python.
Source: https://pypi.org/project/idna/
Who should use idna?
Developers building Python applications that work with international domain names should consider idna. It is particularly relevant for services with global audiences or those managing domain operations across multiple languages and regions.
Source: https://pypi.org/project/idna/
idna alternatives
Other utilities we track, ranked by the same independent score.
The Vioscale score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for idna, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Release Cadence | 97 | 0.08 | 7.4 | ✓ |
| Pricing Transparency | 80 | 0.06 | 5.0 | ✓ |
| Price Level | 100 | 0.05 | 4.6 | ✓ |
| Github Activity | 15 | 0.14 | 2.1 | ✓ |
| Github Stars | 46 | 0.04 | 1.8 | ✓ |
| Reliability | 0 | 0.06 | 0.0 | - |
| Capabilities | 0 | 0.12 | 0.0 | - |
| Integrations | 0 | 0.06 | 0.0 | - |
| Security Posture | 5 | 0.10 | 0.0 | - |
| Package Downloads | 0 | 0.20 | 0.0 | - |
| Stackoverflow Activity | 0 | 0.09 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Activity
| Attribute | Value | Evidence |
|---|---|---|
| Commits last 30d | 2 | mediumsource · 2026-07-30 · 65% |
Adoption
| Attribute | Value | Evidence |
|---|---|---|
| Github stars | 288 | highsource · 2026-07-30 · 90% |
Content
| Attribute | Value | Evidence |
|---|---|---|
| Faq | [{"answer":"idna is a Python library for processing and validating internationalized domain names—domain names containing characters from multiple languages and writing systems. It's used in applications to reliably handle encoding, decoding, and validation of these domain names.","source":"https://pypi.org/project/idna/","question":"What is idna used for?","confidence":0.95},{"answer":"idna supersedes Python's standard library IDNA implementation by offering broader script coverage and including security vulnerability filtering. This makes it a more comprehensive option for applications requiring robust international domain name handling.","source":"https://pypi.org/project/idna/","question":"How does idna compare to Python's standard library?","confidence":0.9},{"answer":"Yes, idna is open source software with no licensing fees or usage charges. You can use it freely in any Python project.","source":"https://pypi.org/project/idna/","question":"Is idna free to use?","confidence":0.95},{"answer":"An internationalized domain name (IDN) is a web address containing characters from non-Latin writing systems—such as Chinese, Arabic, Cyrillic, Greek, or other scripts—allowing users to register and access domains in their native languages.","source":"https://pypi.org/project/idna/","question":"What is an internationalized domain name?","confidence":0.85},{"answer":"Yes, idna includes security vulnerability filtering as part of its domain name processing. This helps protect applications from security issues that can arise from improper handling of Unicode and international domain names.","source":"https://pypi.org/project/idna/","question":"Does idna include security features?","confidence":0.8},{"answer":"idna is a Python library distributed via the Python Package Index (PyPI). It integrates into Python projects on any platform that supports Python.","source":"https://pypi.org/project/idna/","question":"What platforms does idna support?","confidence":0.9},{"answer":"Developers building Python applications that work with international domain names should consider idna. It is particularly relevant for services with global audiences or those managing domain operations across multiple languages and regions.","source":"https://pypi.org/project/idna/","question":"Who should use idna?","confidence":0.75}] | highsource · 2026-07-30 · 87% |
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | Python | highsource · 2026-07-30 · 90% |
License
| Attribute | Value | Evidence |
|---|---|---|
| Spdx | BSD-3-Clause | highsource · 2026-07-30 · 95% |
Pricing
Release
| Attribute | Value | Evidence |
|---|---|---|
| Cadence days | 6 | mediumsource · 2026-07-30 · 70% |
Security
| Attribute | Value | Evidence |
|---|---|---|
| Disclosure policy | Yes | mediumsource · 2026-08-05 · 60% |