# rand_chacha vs serde

| Attribute | rand_chacha | serde |
|---|---|---|
| **Vioscale score** | 60.2 (22% (low)) | 55.8 (27% (low)) |
| activity.commits_last_30d | 5 | 5 |
| adoption.dependent_repos | 86,804 | 98,312 |
| adoption.github_stars | 2,068 | 10,784 |
| content.faq | `[{"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 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. | Serde enables Rust developers to serialize and deserialize data structures to various formats through compile-time trait implementations, eliminating runtime reflection overhead and achieving performance comparable to hand-written serializers. |
| integrations.count | - | 5 |
| integrations.list | - | `[{"name":"JSON"},{"name":"Postcard"},{"name":"CBOR"},{"name":"YAML"},{"name":"MessagePack"}]` |
| language.primary | Rust | Rust |
| license.spdx | - | Apache-2.0 |
| market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true}` | `{"cli":true}` |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://rust-random.github.io/book","retrievedAt":"2026-08-14T11:07:29.756Z"}` | `{"type":"open_source","plans":[{"free":true,"name":"Open Source","features":["Serialize and Deserialize trait implementations","Derive macros for automatic implementation generation","Support for JSON, MessagePack, YAML, TOML, CBOR, Postcard, RON, BSON, Avro, and other formats","no_std support with optional alloc","Standard library collections support","Reference-counted pointer serialization"],"description":"Free open-source Rust library available under Apache 2.0 and MIT licenses","contactSales":false}],"summary":"Free and open-source","freeTier":true,"sourceUrl":"https://serde.rs","retrievedAt":"2026-08-14T11:09:31.623Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | open_source |
| pricing.price_level | free | free |
| pricing.transparent | yes | yes |
| release.cadence_days | 9 | 5 |
| release.history | `[{"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"}]` | `[{"url":"https://github.com/serde-rs/serde/releases/tag/v1.0.229","date":"2026-07-18T23:05:36Z","type":"stable","version":"v1.0.229"},{"url":"https://github.com/serde-rs/serde/releases/tag/v1.0.228","date":"2025-09-27T16:53:46Z","type":"stable","version":"v1.0.228"},{"url":"https://github.com/serde-rs/serde/releases/tag/v1.0.227","date":"2025-09-25T23:51:50Z","type":"stable","version":"v1.0.227"},{"url":"https://github.com/serde-rs/serde/releases/tag/v1.0.226","date":"2025-09-20T23:40:34Z","type":"stable","version":"v1.0.226"},{"url":"https://github.com/serde-rs/serde/releases/tag/v1.0.225","date":"2025-09-16T03:45:31Z","type":"stable","version":"v1.0.225"},{"url":"https://github.com/serde-rs/serde/releases/tag/v1.0.224","date":"2025-09-15T15:48:01Z","type":"stable","version":"v1.0.224"},{"url":"https://github.com/serde-rs/serde/releases/tag/v1.0.223","date":"2025-09-14T20:22:07Z","type":"stable","version":"v1.0.223"},{"url":"https://github.com/serde-rs/serde/releases/tag/v1.0.222","date":"2025-09-14T18:14:11Z","type":"stable","version":"v1.0.222"},{"url":"https://github.com/serde-rs/serde/releases/tag/v1.0.221","date":"2025-09-14T00:26:43Z","type":"stable","version":"v1.0.221"},{"url":"https://github.com/serde-rs/serde/releases/tag/v1.0.220","date":"2025-09-13T22:03:10Z","type":"stable","version":"v1.0.220"},{"url":"https://github.com/serde-rs/serde/releases/tag/v1.0.219","date":"2025-03-09T19:14:47Z","type":"stable","version":"v1.0.219"},{"url":"https://github.com/serde-rs/serde/releases/tag/v1.0.218","date":"2025-02-20T05:20:51Z","type":"stable","version":"v1.0.218"},{"url":"https://github.com/serde-rs/serde/releases/tag/v1.0.217","date":"2024-12-27T20:43:25Z","type":"stable","version":"v1.0.217"},{"url":"https://github.com/serde-rs/serde/releases/tag/v1.0.216","date":"2024-12-11T02:08:11Z","type":"stable","version":"v1.0.216"},{"url":"https://github.com/serde-rs/serde/releases/tag/v1.0.215","date":"2024-11-11T21:05:42Z","type":"stable","version":"v1.0.215"},{"url":"https://github.com/serde-rs/serde/releases/tag/v1.0.214","date":"2024-10-28T16:42:59Z","type":"stable","version":"v1.0.214"},{"url":"https://github.com/serde-rs/serde/releases/tag/v1.0.213","date":"2024-10-22T18:17:41Z","type":"stable","version":"v1.0.213"},{"url":"https://github.com/serde-rs/serde/releases/tag/v1.0.212","date":"2024-10-22T16:43:13Z","type":"stable","version":"v1.0.212"},{"url":"https://github.com/serde-rs/serde/releases/tag/v1.0.211","date":"2024-10-22T06:33:16Z","type":"stable","version":"v1.0.211"},{"url":"https://github.com/serde-rs/serde/releases/tag/v1.0.210","date":"2024-09-06T18:20:24Z","type":"stable","version":"v1.0.210"}]` |
| reliability.status_page | yes | yes |
| security.scorecard | 6.2 | 5.4 |
| 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"}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=cargo&package_name=serde&per_page=100","last_12m":0,"max_severity":null}` |

*Source: Vioscale. Generated 2026-09-01T17:09:12.814Z. "-" = undocumented, not absent.*