# idna vs rand_chacha

**Leader by Vioscale score:** idna

| Attribute | idna | rand_chacha |
|---|---|---|
| **Vioscale score** | 84.2 (40% (low)) | 60.2 (22% (low)) |
| activity.commits_last_30d | 58 | 5 |
| adoption.dependent_repos | 408,607 | 86,804 |
| adoption.github_stars | 291 | 2,068 |
| adoption.package_downloads_weekly | 442,973,541 | - |
| content.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}]` | `[{"answer":"rand_chacha is a random number generation library for the Rust programming language that implements the ChaCha algorithm. It enables Rust applications to generate random numbers.","source":"https://rust-random.github.io/book","question":"What is rand_chacha?","confidence":0.95},{"answer":"Yes, rand_chacha is open-source software and is available at no cost. There are no licensing fees or subscription costs.","source":"https://rust-random.github.io/book","question":"Is rand_chacha free to use?","confidence":0.98},{"answer":"As an open-source project, rand_chacha's source code is publicly available for review, study, and modification according to its open-source license terms.","source":"https://rust-random.github.io/book","question":"Can I view and modify the source code?","confidence":0.95},{"answer":"rand_chacha is designed specifically for the Rust programming language. It integrates with Rust's random number generation ecosystem.","source":"https://rust-random.github.io/book","question":"What programming language does rand_chacha support?","confidence":0.98},{"answer":"Documentation is available on the project's official website. Developers can consult these resources when implementing the library in their projects.","source":"https://rust-random.github.io/book","question":"Where can I find documentation for rand_chacha?","confidence":0.92},{"answer":"Yes, as open-source software, rand_chacha can be used in commercial applications. There are no licensing fees, though users should review the project's license terms for any specific requirements.","source":"https://rust-random.github.io/book","question":"Can I use rand_chacha in commercial projects?","confidence":0.95}]` |
| description.long | A Python package implementing the IDNA specification for handling internationalized domain names in applications. It converts Unicode domain names to ASCII-compatible format and back, with support for Unicode normalization and validation that exceeds the standard library. | A Rust library providing ChaCha pseudo-random number generation for cryptographic and general-purpose use cases. Integrated into the Rust random ecosystem as part of the broader rand crate. |
| language.primary | Python | Rust |
| license.spdx | BSD-3-Clause | - |
| market.availability | - | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true}` | `{"cli":true}` |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://pypi.org/project/idna/","retrievedAt":"2026-08-14T11:09:14.342Z"}` | `{"type":"open_source","freeTier":true,"sourceUrl":"https://rust-random.github.io/book","retrievedAt":"2026-08-14T11:07:29.756Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | commercial | open_source |
| pricing.price_level | free | free |
| pricing.transparent | yes | yes |
| release.cadence_days | 14 | 9 |
| release.history | `[{"url":"https://github.com/kjd/idna/releases/tag/v3.19","date":"2026-08-18T05:14:47Z","type":"stable","version":"v3.19"},{"url":"https://github.com/kjd/idna/releases/tag/v3.18","date":"2026-06-02T14:34:28Z","type":"stable","version":"v3.18"},{"url":"https://github.com/kjd/idna/releases/tag/v3.17","date":"2026-05-28T14:33:03Z","type":"stable","version":"v3.17"},{"url":"https://github.com/kjd/idna/releases/tag/v3.16","date":"2026-05-22T00:16:45Z","type":"stable","version":"v3.16"},{"url":"https://github.com/kjd/idna/releases/tag/v3.15","date":"2026-05-12T22:46:21Z","type":"stable","version":"v3.15"},{"url":"https://github.com/kjd/idna/releases/tag/v3.14","date":"2026-05-10T20:32:37Z","type":"stable","version":"v3.14"},{"url":"https://github.com/kjd/idna/releases/tag/v3.13","date":"2026-04-22T16:43:03Z","type":"stable","version":"v3.13"},{"url":"https://github.com/kjd/idna/releases/tag/v3.12","date":"2026-04-21T13:33:14Z","type":"stable","version":"v3.12"},{"url":"https://github.com/kjd/idna/releases/tag/v3.11","date":"2025-10-12T14:55:53Z","type":"stable","version":"v3.11"},{"url":"https://github.com/kjd/idna/releases/tag/v3.10","date":"2024-09-15T18:08:06Z","type":"stable","version":"v3.10"},{"url":"https://github.com/kjd/idna/releases/tag/v3.9","date":"2024-09-14T02:58:56Z","type":"stable","version":"v3.9"},{"url":"https://github.com/kjd/idna/releases/tag/v3.8","date":"2024-08-23T16:05:35Z","type":"stable","version":"v3.8"},{"url":"https://github.com/kjd/idna/releases/tag/v3.7","date":"2024-04-11T03:45:28Z","type":"stable","version":"v3.7"}]` | `[{"url":"https://github.com/rust-random/rand/releases/tag/0.8.8","date":"2026-08-25T07:58:45Z","type":"stable","version":"0.8.8"},{"url":"https://github.com/rust-random/rand/releases/tag/0.9.5","date":"2026-07-11T11:19:03Z","type":"stable","version":"0.9.5"},{"url":"https://github.com/rust-random/rand/releases/tag/0.8.7","date":"2026-07-11T11:19:28Z","type":"stable","version":"0.8.7"},{"url":"https://github.com/rust-random/rand/releases/tag/0.10.2","date":"2026-07-02T09:02:44Z","type":"stable","version":"0.10.2"},{"url":"https://github.com/rust-random/rand/releases/tag/0.8.6","date":"2026-04-17T06:44:06Z","type":"stable","version":"0.8.6"},{"url":"https://github.com/rust-random/rand/releases/tag/0.9.4","date":"2026-04-13T15:42:39Z","type":"stable","version":"0.9.4"},{"url":"https://github.com/rust-random/rand/releases/tag/0.10.1","date":"2026-04-13T15:43:08Z","type":"stable","version":"0.10.1"},{"url":"https://github.com/rust-random/rand/releases/tag/0.9.3","date":"2026-04-13T15:42:08Z","type":"stable","version":"0.9.3"},{"url":"https://github.com/rust-random/rand/releases/tag/0.10.0","date":"2026-02-14T07:28:28Z","type":"stable","version":"0.10.0"},{"url":"https://github.com/rust-random/rand/releases/tag/0.9.2","date":"2026-04-13T15:41:30Z","type":"stable","version":"0.9.2"},{"url":"https://github.com/rust-random/rand/releases/tag/0.9.1","date":"2025-04-17T14:40:57Z","type":"stable","version":"0.9.1"},{"url":"https://github.com/rust-random/rand/releases/tag/0.9.0","date":"2025-01-27T13:41:24Z","type":"stable","version":"0.9.0"},{"url":"https://github.com/rust-random/rand/releases/tag/0.9.0-alpha.0","date":"2024-02-18T17:53:46Z","type":"prerelease","version":"0.9.0-alpha.0"},{"url":"https://github.com/rust-random/rand/releases/tag/rand_distr-0.5.0-alpha.0","date":"2024-02-18T17:56:14Z","type":"prerelease","version":"rand_distr-0.5.0-alpha.0"}]` |
| reliability.status_page | - | yes |
| security.disclosure_policy | yes | - |
| security.scorecard | 8.8 | 6.2 |
| security.vulnerabilities | - | `{"count":1,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=cargo&package_name=rand&per_page=100","last_12m":1,"max_severity":"LOW"}` |

*Source: Vioscale. Generated 2026-09-01T16:46:35.539Z. "-" = undocumented, not absent.*