# Locust - **Canonical URI:** https://www.vioscale.ai/software/locust - **Category:** Testing Tools - **Homepage:** https://locust.io - **Also known as:** locust - **Profile claimed by vendor:** no - **Last updated:** 2026-08-26T18:59:40.738Z ## Vioscale score **60.6 / 100**, confidence 43% (low). Computed 2026-09-01. Composite of weighted, independently-sourced signals (no user reviews, no vendor payment). | Signal | Score | Weight | Contribution | Evidence present | |---|--:|--:|--:|:--:| | price_level | 100 | 0.04 | 4 | ✓ | | reliability | 0 | 0.053 | 0 | - | | capabilities | 28.9 | 0.09911111111111111 | 2.9 | ✓ | | repo_stars | 83.9 | 0.033 | 2.8 | ✓ | | integrations | 0 | 0.053 | 0 | - | | dependent_projects | 54.6 | 0.08 | 4.4 | ✓ | | dev_activity | 49.4 | 0.12 | 5.9 | ✓ | | release_cadence | 94.4 | 0.067 | 6.3 | ✓ | | security_posture | 0 | 0.087 | 0 | - | | package_downloads | 0 | 0.173 | 0 | - | | security_score | 48 | 0.053 | 2.5 | ✓ | | pricing_transparency | 80 | 0.053 | 4.2 | ✓ | | community_qa_activity | 0 | 0.08 | 0 | - | ## Pricing _As of 2026-08-16, [verify at source](https://locust.io). Independently observed._ Open source · Free tier ## About A Python-based tool for performance testing that simulates thousands of concurrent users to stress-test web applications. Tests are written as plain Python code and can run distributed across multiple machines. _Independently observed._ ## Platform & deployment - **Platforms:** CLI - **Deployment:** Self-hosted ## Capabilities _The capabilities that matter for Testing Tools. "-" = undocumented, not absent._ | Capability | Supported | |---|:--:| | **Core** | | | Test types | - | | Browser automation | - | | Built-in assertion library | - | | **Isolation** | | | Mocking / stubbing | - | | **Techniques** | | | Snapshot testing | - | | **Performance** | | | Parallel execution | ✓ | | **Insight** | | | Code coverage | - | | **DX** | | | Watch mode | - | | **Ops** | | | CI integration | - | | **Core** | | | Languages | Python | ## Release history | Version | Date | Type | |---|---|---| | [2.46.4](https://github.com/locustio/locust/releases/tag/2.46.4) | 2026-08-23 | stable | | [2.46.3](https://github.com/locustio/locust/releases/tag/2.46.3) | 2026-08-01 | stable | | [2.46.2](https://github.com/locustio/locust/releases/tag/2.46.2) | 2026-07-24 | stable | | [2.46.1](https://github.com/locustio/locust/releases/tag/2.46.1) | 2026-07-21 | stable | | [2.46.0](https://github.com/locustio/locust/releases/tag/2.46.0) | 2026-07-19 | stable | | [2.45.0](https://github.com/locustio/locust/releases/tag/2.45.0) | 2026-07-09 | stable | | [2.44.4](https://github.com/locustio/locust/releases/tag/2.44.4) | 2026-06-18 | stable | | [2.44.3](https://github.com/locustio/locust/releases/tag/2.44.3) | 2026-06-12 | stable | | [2.44.2](https://github.com/locustio/locust/releases/tag/2.44.2) | 2026-06-12 | stable | | [2.44.1](https://github.com/locustio/locust/releases/tag/2.44.1) | 2026-06-01 | stable | | [2.44.0](https://github.com/locustio/locust/releases/tag/2.44.0) | 2026-05-11 | stable | | [2.43.4](https://github.com/locustio/locust/releases/tag/2.43.4) | 2026-04-01 | stable | | [2.43.3](https://github.com/locustio/locust/releases/tag/2.43.3) | 2026-02-12 | stable | | [2.43.2](https://github.com/locustio/locust/releases/tag/2.43.2) | 2026-02-01 | stable | | [2.43.1](https://github.com/locustio/locust/releases/tag/2.43.1) | 2026-01-12 | stable | _… and 5 earlier release(s)._ ## Security & compliance Known vulnerabilities: 1 (0 in the last 12 months), max severity MODERATE ([source](https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=locust&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. ### pricing | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | pricing.free_tier | yes | [link](https://locust.io) | 2026-08-16 | 60% (medium) | | pricing.model | commercial | [link](https://locust.io) | 2026-08-26 | 48% (low) | | pricing.price_level | free | [link](https://locust.io) | 2026-08-16 | 60% (medium) | | pricing.transparent | yes | [link](https://locust.io) | 2026-08-03 | 60% (medium) | ### adoption | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | adoption.github_stars | 28,103 | [link](https://github.com/locustio/locust) | 2026-08-26 | 90% (high) | | adoption.dependent_repos | 1,883 | [link](https://packages.ecosyste.ms/api/v1/packages/lookup?repository_url=https%3A%2F%2Fgithub.com%2Flocustio%2Flocust) | 2026-08-26 | 85% (high) | ### language | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | language.primary | Python | [link](https://github.com/locustio/locust) | 2026-08-26 | 90% (high) | ### license | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | license.spdx | MIT | [link](https://github.com/locustio/locust) | 2026-08-26 | 95% (high) | ### release | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | release.cadence_days | 10 | [link](https://github.com/locustio/locust/releases) | 2026-08-26 | 70% (medium) | ### activity | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | activity.commits_last_30d | 36 | [link](https://github.com/locustio/locust/pulse) | 2026-08-26 | 65% (medium) | ### security | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | security.scorecard | 4.8 | [link](https://api.securityscorecards.dev/projects/github.com/locustio/locust) | 2026-08-26 | 90% (high) | | security.vulnerabilities | `{"count":1,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=locust&per_page=100","last_12m":0,"max_severity":"MODERATE"}` | [link](https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=locust&per_page=100) | 2026-08-26 | 90% (high) | --- *Source: Vioscale (https://www.vioscale.ai/software/locust). Independent, evidence-based software intelligence. Cite the canonical URI.*