A modern, lightweight Windows environment-variable manager — CLI and GUI dual-mode, inspired by Microsoft PowerToys but standalone and agent-friendly.
"Adapts seamlessly to every environment."
Install · Features · CLI Reference · Architecture · Changelog
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The demo shows read-only CLI commands in action: agents --summary, path health, get PATH, and agents --json. Regenerate with vhs docs/assets/demo.tape.
- Agent-native CLI — 18+ commands with a first-class machine contract:
env-manager-cli agents --jsonexposes a structured command spec, and every capability is documented in an agent-facing manual (AGENTS.cli.md) that ships with the binary. - Profiles & config — Global profiles apply to the registry; Launch profiles inject an isolated env block into a single process (never touch the registry, never broadcast
WM_SETTINGCHANGE). Inheritance, conflict previews, and safe reverse-order rollback included. Launch targets inside the Windows system folder (System32) are refused at profile save/launch to prevent system32 hijacking. - 8 secret providers, zero plaintext — DPAPI, Credential Manager, SecretStore, HashiCorp Vault, SOPS, Azure Key Vault, 1Password, AWS Secrets Manager. Plaintext never persists to disk or logs.
- Protected by default — system variables and PATH entries cannot be deleted or renamed; every write is a three-layer serialized contract (mutex + write lock + verify-before-swap).
- PATH health — detects duplicates and dead entries, with
--fix/--dry-run. - Audit ledger — append-only, SHA256 hash-chained history with rollback and disaster-recovery export.
- CLI + GUI dual-mode — C# CLI for scripting/CI; native Tauri 2 + Svelte GUI for interactive editing. Both route through the same registry contracts. 10-language i18n.
Env Manager is designed to be operated by LLM agents, not just humans:
env-manager-cli agents # print the embedded agent manual
env-manager-cli agents --path # file path of the manual (AGENTS.cli.md)
env-manager-cli agents --summary # one-line machine-readable spec
env-manager-cli agents --json # full command table as structured JSON- AGENTS.md — repository-level agent instructions (architecture, hard boundaries, testing).
- AGENTS.cli.md — shipped with the CLI binary so any agent can discover the contract at runtime.
- Capability-scoped agentic surface — opt-in
agentCapabilitieswhitelist onsecret-providers.jsonlets deployments reject parallel set/delete calls from agents.
Warning
Current builds are not code-signed. Windows SmartScreen may show an "unrecognized app" warning on first launch — click "More info" then "Run anyway". We have applied for free open-source code signing via the SignPath Foundation; once approved, all release artifacts (MSI + EXE) will be signed. See Code signing policy.
Protected variables and PATH entries are disabled before deletion, with exact registry value-kind verification on restore. Secret values are encrypted via provider-specific mechanisms — plaintext never persists to disk or logs. Named pipe IPC uses anti-squatting flags and input validation (64 arg max, 32767 char cap, null byte rejection). See SECURITY.md for vulnerability reporting.
Download the MSI from GitHub Releases and run it. Creates Start Menu shortcuts automatically. Available in x64, x86, and ARM64.
Download the portable ZIP from GitHub Releases. Extract and run env-manager.exe directly. No installation needed.
Download the CLI-only ZIP for headless or scripting use: env-manager-cli.exe plus .dll files. No GUI, no WebView2 dependency.
Important
Portable and CLI-Only builds are framework-dependent: they require the .NET 10 Desktop Runtime on the target machine — download it from the official .NET download page. The MSI installer checks for .NET 10 at install time and prompts automatically.
WebView2 Runtime (for the GUI) is preinstalled on Windows 11 and available for Windows 10 21H2+ from Microsoft.
For optional external secret-provider tools (SOPS, 1Password CLI, Vault CLI, AWS CLI, Azure CLI, PowerShell 7), see the Secret Providers Guide.
Note
winget distribution is planned but not yet available. Track via GitHub Issues for updates.
git clone https://github.com/Xxx91n/env-manager.git
cd env-manager
cd frontend && npm ci && cd ..
node scripts/build.mjs --arch x64Requires .NET 10 SDK, Node.js 20+, Rust stable with MSVC target. See docs/build-and-release.md for details.
# List / get / set
env-manager-cli.exe list
env-manager-cli.exe get PATH
env-manager-cli.exe set JAVA_HOME "D:\jdk17" --scope system
# Create a Launch profile and launch with isolated env
env-manager-cli.exe profile create dev --type launch --target python.exe
env-manager-cli.exe profile add-secret dev API_KEY "sk-xxx"
env-manager-cli.exe profile launch dev
# PATH health
env-manager-cli.exe path health
# Backup / restore
env-manager-cli.exe backup --output backup.json
env-manager-cli.exe restore backup.json
# Disaster recovery + tamper-evident audit
env-manager-cli.exe export-state --output state.dpapi
env-manager-cli.exe audit verify-ledger
# Service control
env-manager-cli.exe service statusSee docs/cli-commands.md for the full command reference.
Run env-manager.exe. The GUI provides a real-time variable list with search, scope filtering, inline edit, a PATH editor with drag-and-drop reordering, profile management, secret provider selection, service control panel, audit history, and 10-language i18n.
flowchart LR
GUI[Tauri GUI - Svelte] -->|named pipe IPC| SVC[env-manager-service Rust]
GUI --> CLI[env-manager-cli C#]
SVC --> CLI
CLI --> REG[(Registry HKCU/HKLM)]
CLI --> SEC[Secret Providers]
- CLI: C# .NET 10 single-file executable — the coordination layer and registry gateway.
- Service: standalone Rust binary managing secret mount lifecycle via named pipe IPC.
- GUI: Tauri 2 + Svelte 4 frontend using the same IPC contracts.
8 provider backends with activation preflight — failures surface as inline amber banners directly in the profile editor:
| Provider | Auth Method | Periodic Refresh | Docs |
|---|---|---|---|
| DPAPI CurrentUser | Windows DPAPI | No (per-user) | Guide |
| Windows Credential Manager | CredMan + DPAPI | No (per-user) | Guide |
| PowerShell SecretManagement | SecretStore vault | Best-effort | Guide |
| HashiCorp Vault KV v2 | VAULT_TOKEN / AppRole cert | Yes | Guide |
| SOPS | Age / PGP / KMS | Yes | Guide |
| Azure Key Vault | SP cert / managed identity | Yes | Guide |
| 1Password CLI | OP_SERVICE_ACCOUNT_TOKEN | Yes | Guide |
| AWS Secrets Manager | SigV4 + access keys | Yes | Guide |
See docs/secret-providers-guide.md for per-provider prerequisites, one-time setup, and activation error fix steps.
env-manager-service.exe is a standalone Rust binary managing secret mount lifecycle via named pipe IPC:
- RuntimeMode: Service (SCM-managed, machine boot), Background (user-launched), Cli (one-shot gateway)
- Reconcile loop: 300s periodic full-scan, idempotent per-item handler, 30s first-tick delay
- Cert bootstrap: Vault AppRole and Azure SP certificate-based auth eliminates long-lived tokens
- Audit ledger: append-only hash-chained
audit-ledger.jsonlwith 100MB rotation and tamper detection - IPC: anti-squatting pipe flag, 65536-byte request cap, newline-delimited JSON protocol
- Watchdog: two-layer recovery — SCM auto-restart (Service mode) + GUI 30s ping watchdog (Background mode)
| Document | Content |
|---|---|
| CHANGELOG.md | Version history (keepachangelog format) |
| docs/cli-commands.md | Full CLI command reference |
| docs/architecture.md | Deep architecture |
| docs/backup-and-profiles.md | Backup, restore, profile semantics |
| docs/secret-providers-guide.md | Secret provider setup |
| docs/build-and-release.md | Build and release process |
| docs/adr/ | Architecture decision records |
| AGENTS.md / AGENTS.cli.md | Agent-facing guides |
Issues and PRs welcome. Read AGENTS.md first for architecture boundaries and the test policy.
Apache-2.0 © 2026 Env Manager Contributors. See LICENSE.