What is rand_core?
The Rust Rand Book is the official documentation for Rust's random number library, providing quick start guides, feature overviews, user guides, and contributor documentation.
rand_core pricing
We don't have rand_core's full plan breakdown yet (its pricing page resisted automated reading). Here's what we could confirm. Always check live pricing for exact numbers.
rand_core FAQ
Common questions about rand_core, answered from independent, dated evidence.
What is rand_core?
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.
What is the cost and licensing model?
rand_core is open-source software available at no cost. There are no subscription fees, licensing charges, or usage restrictions for using the library.
Who should use rand_core?
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.
What documentation is provided?
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.
Can developers contribute to the project?
Yes, rand_core welcomes community contributions. The project provides dedicated contributor documentation to guide developers interested in participating in its development.
What programming language does rand_core target?
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.
rand_core 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 rand_core, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Release Cadence | 61 | 0.08 | 4.7 | ✓ |
| Github Activity | 15 | 0.14 | 2.1 | ✓ |
| Github Stars | 21 | 0.04 | 0.8 | ✓ |
| Capabilities | 0 | 0.12 | 0.0 | - |
| Integrations | 0 | 0.06 | 0.0 | - |
| Security Posture | 0 | 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 | 12 | highsource · 2026-07-30 · 90% |
Content
| Attribute | Value | Evidence |
|---|---|---|
| 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}] | highsource · 2026-07-30 · 93% |
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | Rust | highsource · 2026-07-30 · 90% |
License
| Attribute | Value | Evidence |
|---|---|---|
| Spdx | Apache-2.0 | highsource · 2026-07-30 · 95% |
Pricing
Release
| Attribute | Value | Evidence |
|---|---|---|
| Cadence days | 71 | mediumsource · 2026-07-30 · 70% |
Reliability
| Attribute | Value | Evidence |
|---|---|---|
| Status page | Yes | mediumsource · 2026-08-05 · 60% |