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Flox

flox.dev

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Spec score 8.6 #5 of 50 in Development Environment Managers

What it is

Flox gives developers a way to define reproducible software environments, including project packages, variables, and shell hooks, with configuration managed as code. It presents these environments as working across macOS, Linux, and WSL2. Its Nixpkgs-powered catalog contains more than 190,000 packages. FloxHub supports syncing and sharing environments, with package lists, earlier versions, and change logs available for review. GitHub Actions can install Flox and activate environments in CI workflows, while a VS Code extension supports package management, activation, and running services; the extension is also compatible with Cursor. Flox Skills are described as helping Claude Code, Codex, and skills.sh agents create environments, services, and builds and onboard repositories. Flox says environments include signed, hash-pinned software bills of materials and build provenance. The free Personal plan includes three private FloxHub environments and five private packages. Team costs $20/user/mo; Enterprise pricing is custom.

Spec sheet

Purpose
Flox provides reproducible software environments containing the tools and frameworks developers need across the software lifecycle.Read 28 Sep 2026 · flox.dev
Headquarters
United StatesRead 28 Sep 2026 · flox.dev
Founded
2021Read 28 Sep 2026 · flox.dev
AI coding tools
Flox Skills are described as helping Claude Code, Codex, and skills.sh agents create environments, services, and builds and onboard repositories.Read 28 Sep 2026 · flox.dev
Catalog
The Flox Catalog is powered by Nixpkgs and the features page says it contains more than 190,000 packages.Read 28 Sep 2026 · flox.dev
Certifications
Flox states that it has SOC 2 Type II and ISO/IEC 27001:2022 certifications, and that prospects can request the related documentation.Read 28 Sep 2026 · flox.dev
CI integration
Flox provides GitHub Actions for installing Flox and activating environments in CI workflows.Read 28 Sep 2026 · flox.dev
Company origin
Flox says it was originally built to help D. E. Shaw group developers adopt Nix at scale.Read 28 Sep 2026 · flox.dev
Cross-platform support
Flox environments are presented as working across macOS, Linux, and WSL2.Read 28 Sep 2026 · flox.dev
Editor integration
The download page offers a VS Code extension for managing packages, activating environments, and running services, and says it is also compatible with Cursor.Read 28 Sep 2026 · flox.dev
Enterprise controls
The enterprise platform describes SSO, role-based access controls, private distribution including air-gapped use, audit lineage, and support with an SLA.Read 28 Sep 2026 · flox.dev
Environment definition
Environments define project packages, variables, and shell hooks and can be managed as code.Read 28 Sep 2026 · flox.dev
Sharing
FloxHub lets users sync, share, and manage environments, including viewing package lists, previous versions, and change logs.Read 28 Sep 2026 · flox.dev
Supply-chain security
Flox says environments carry a signed, hash-pinned software bill of materials and build provenance.Read 28 Sep 2026 · flox.dev

Plans and prices

Personal Free Free Flox CLI · Flox Catalog access · unlimited public FloxHub environments · 3 private FloxHub environments · 5 private packages · community support via Slack or Discourse Read 28 Sep 2026 · flox.dev
Team $20 a month $20/seat/month Everything in Personal · team catalog · unlimited package publishing · unlimited team FloxHub environments · platform support · paid consulting with Flox packaging experts Read 28 Sep 2026 · flox.dev
Enterprise Priced on request Custom pricing Everything in Team · custom deployment options · custom base catalog · software policy engine · comprehensive packaging support · paid Nix packaging consulting Read 28 Sep 2026 · flox.dev

Every Flox plan and price →

Strong points and limits

Strong points

  • Environments specify packages, variables, and shell hooks
  • Supports macOS, Linux, and WSL2
  • Catalog contains more than 190,000 packages
  • Free plan includes three private environments

Limits

  • Personal plan allows five private packages
  • Team costs $20/user/mo
  • Enterprise pricing is custom

Who it suits

Flox suits developers who want project environments specified as code and shared across teams or development workflows. Teams needing private distribution, access controls, or custom deployments can consider its Enterprise offering.

Verdict

Flox combines environment definition with sharing, CI, and editor integrations, and offers a free tier for individual use. Teams should weigh its paid tier limits and custom-priced Enterprise option against their deployment and access-control needs.

Where Specifiction places it

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