# RE2 - **Canonical URI:** https://www.vioscale.ai/software/re2 - **Category:** Regex Tools - **Homepage:** https://github.com/google/re2 - **Also known as:** re2 - **Profile claimed by vendor:** no - **Last updated:** 2026-08-26T19:31:51.885Z ## Vioscale score **48.8 / 100**, confidence 26% (low). Computed 2026-09-01. _(updating — computed under an earlier model version or past its freshness window.)_ Composite of weighted, independently-sourced signals (no user reviews, no vendor payment). | Signal | Score | Weight | Contribution | Evidence present | |---|--:|--:|--:|:--:| | price_level | 100 | 0.052 | 5.2 | ✓ | | reliability | 0 | 0.073 | 0 | - | | capabilities | 0 | 0.084 | 0 | - | | repo_stars | 75.3 | 0.026 | 2 | ✓ | | integrations | 8.7 | 0.09355555555555557 | 0.8 | ✓ | | dependent_projects | 0 | 0.063 | 0 | - | | dev_activity | 0 | 0.094 | 0 | ✓ | | release_cadence | 83.3 | 0.052 | 4.3 | ✓ | | security_posture | 5 | 0.073 | 0 | - | | package_downloads | 0 | 0.136 | 0 | - | | security_score | 63 | 0.042 | 2.6 | ✓ | | pricing_transparency | 80 | 0.084 | 6.7 | ✓ | | community_qa_activity | 0 | 0.063 | 0 | - | ## Pricing _As of 2026-08-19, [verify at source](https://github.com/pricing). Independently observed._ Open source · Free tier > Open source, free ## About RE2 is a C++ library providing a thread-safe alternative to traditional backtracking regex engines like PCRE and Perl, prioritizing predictable performance and security over feature completeness. _Independently observed._ ## Platform & deployment - **Platforms:** CLI, macOS, Linux, Windows - **Deployment:** Self-hosted ## Integrations (1) _Independently observed._ - GitHub ## Release history | Version | Date | Type | |---|---|---| | [2025-11-05](https://github.com/google/re2/releases/tag/2025-11-05) | 2025-11-05 | stable | | [2025-08-12](https://github.com/google/re2/releases/tag/2025-08-12) | 2025-08-12 | stable | | [2025-08-05](https://github.com/google/re2/releases/tag/2025-08-05) | 2025-08-05 | stable | | [2025-07-22](https://github.com/google/re2/releases/tag/2025-07-22) | 2025-07-22 | stable | | [2025-07-17](https://github.com/google/re2/releases/tag/2025-07-17) | 2025-07-17 | stable | | [2024-07-02](https://github.com/google/re2/releases/tag/2024-07-02) | 2024-07-01 | stable | | [2024-07-01](https://github.com/google/re2/releases/tag/2024-07-01) | 2024-06-30 | stable | | [2024-06-01](https://github.com/google/re2/releases/tag/2024-06-01) | 2024-05-31 | stable | | [2024-05-01](https://github.com/google/re2/releases/tag/2024-05-01) | 2024-04-30 | stable | | [2024-04-01](https://github.com/google/re2/releases/tag/2024-04-01) | 2024-03-31 | stable | | [2024-03-01](https://github.com/google/re2/releases/tag/2024-03-01) | 2024-02-29 | stable | | [2024-02-01](https://github.com/google/re2/releases/tag/2024-02-01) | 2024-01-31 | stable | | [2023-11-01](https://github.com/google/re2/releases/tag/2023-11-01) | 2023-10-31 | stable | | [2023-09-01](https://github.com/google/re2/releases/tag/2023-09-01) | 2023-08-31 | stable | | [2023-08-01](https://github.com/google/re2/releases/tag/2023-08-01) | 2023-07-31 | stable | _… and 5 earlier release(s)._ ## Security & compliance Known vulnerabilities: 0 (0 in the last 12 months) ([source](https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=google-re2&per_page=100)). A count reflects scale and disclosure, not quality. ## Facts Every value below carries its source and our confidence. Facts are re-crawled on a freshness schedule. ### integrations | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | integrations.count | 1 | [link](https://github.com/pricing) | 2026-08-19 | 60% (medium) | ### market | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | market.availability | `{"hqCountry":"US","primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | [link](https://github.com/pricing) | 2026-08-19 | 75% (high) | ### pricing | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | pricing.free_tier | yes | [link](https://github.com/pricing) | 2026-08-19 | 60% (medium) | | pricing.price_level | free | [link](https://github.com/pricing) | 2026-08-19 | 60% (medium) | | pricing.transparent | yes | [link](https://github.com/pricing) | 2026-08-19 | 60% (medium) | | pricing.model | commercial | [link](https://github.com/google/re2) | 2026-08-26 | 40% (low) | ### security | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | security.disclosure_policy | yes | [link](https://github.com/pricing) | 2026-08-19 | 60% (medium) | | security.scorecard | 6.3 | [link](https://api.securityscorecards.dev/projects/github.com/google/re2) | 2026-08-26 | 90% (high) | | security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=google-re2&per_page=100","last_12m":0,"max_severity":null}` | [link](https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=google-re2&per_page=100) | 2026-08-26 | 90% (high) | ### adoption | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | adoption.github_stars | 9,785 | [link](https://github.com/google/re2) | 2026-08-26 | 90% (high) | ### language | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | language.primary | C++ | [link](https://github.com/google/re2) | 2026-08-26 | 90% (high) | ### license | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | license.spdx | BSD-3-Clause | [link](https://github.com/google/re2) | 2026-08-26 | 95% (high) | ### release | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | release.cadence_days | 30 | [link](https://github.com/google/re2/releases) | 2026-08-26 | 70% (medium) | ### activity | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | activity.commits_last_30d | 0 | [link](https://github.com/google/re2/pulse) | 2026-08-26 | 65% (medium) | --- *Source: Vioscale (https://www.vioscale.ai/software/re2). Independent, evidence-based software intelligence. Cite the canonical URI.*