# rand_core vs serde

| Attribute | rand_core | serde |
|---|---|---|
| **Vioscale score** | 47.7 (17% (low)) | 52.9 (27% (low)) |
| activity.commits_last_30d | 2 | 5 |
| adoption.dependent_repos | 73,473 | 98,312 |
| adoption.github_stars | 13 | 10,784 |
| content.faq | `[{"answer":"rand_core is a Rust library that provides core traits and tools for implementing random number generation functionality. It serves as a foundation for developers who are building their own randomness solutions and libraries within the Rust ecosystem.","source":"https://rust-random.github.io/book","question":"What is rand_core?","confidence":0.95},{"answer":"rand_core is open-source software available at no cost. There are no subscription fees, licensing charges, or usage restrictions for using the library.","source":"https://rust-random.github.io/book","question":"What is the cost and licensing model?","confidence":1},{"answer":"rand_core is designed for Rust developers who need to implement random number generation capabilities in their projects or libraries. It provides the essential traits and foundational tools required to build such implementations.","source":"https://rust-random.github.io/book","question":"Who should use rand_core?","confidence":0.9},{"answer":"The project includes a quick start guide, an overview of available features, and contributor documentation. These resources support both users getting started with the library and developers interested in contributing.","source":"https://rust-random.github.io/book","question":"What documentation is provided?","confidence":0.95},{"answer":"Yes, rand_core welcomes community contributions. The project provides dedicated contributor documentation to guide developers interested in participating in its development.","source":"https://rust-random.github.io/book","question":"Can developers contribute to the project?","confidence":0.9},{"answer":"rand_core is built specifically for the Rust programming language. It integrates with Rust's type system and ecosystem to provide traits and tools for random number generation implementations.","source":"https://rust-random.github.io/book","question":"What programming language does rand_core target?","confidence":0.85}]` | - |
| description.long | An open-source Rust library providing foundational traits for implementing random number generation algorithms. It supplies the core interfaces that RNG implementations build on, along with helper utilities for algorithm development. | 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 | Apache-2.0 |
| market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | - | `{"cli":true}` |
| pricing | `{"type":"open_source","sourceUrl":"https://rust-random.github.io/book","retrievedAt":"2026-08-14T11:10:14.361Z"}` | `{"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 |
| release.cadence_days | 71 | 5 |
| release.history | `[{"url":"https://github.com/rust-random/rand_core/releases/tag/v0.10.1","date":"2026-04-13T15:37:40Z","type":"stable","version":"v0.10.1"},{"url":"https://github.com/rust-random/rand_core/releases/tag/v0.10.0","date":"2026-02-01T09:09:36Z","type":"stable","version":"v0.10.0"}]` | `[{"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 | - | 5.4 |
| security.vulnerabilities | `{"count":2,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=cargo&package_name=rand_core&per_page=100","last_12m":0,"max_severity":"CRITICAL"}` | `{"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 2026-09-01T20:41:09.736Z. "-" = undocumented, not absent.*