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Bruno vs Voiden API Client

Offline-first and Git-friendly but lacks markdown execution and MCP integration.

Which to pick

Pick Bruno if you want…

  • Git-native API client
  • Integrations with Vault or Azure Key Vault (on Bruno's list, not Voiden API Client's)

Pick Voiden API Client if you want…

  • Git-native, markdown-based API design & testing
  • A free, open-source tool
  • Integrations with JavaScript, Python or Shell (on Voiden API Client's list, not Bruno's)

Side by side

What it is
Bruno:Bruno is an open-source, offline-first API client that stores collections as plain-text files in Git.
Voiden API Client:Voiden is an open-source, Git-native API client that lets you design, test and document APIs in plain Markdown files.
Best for
Bruno:Git-native API client
Voiden API Client:Git-native, markdown-based API design & testing
Who it’s for
Bruno:Developers and teams who need a secure, local-first API testing tool.
Voiden API Client:Developers who version-control APIs and need offline, code-centric tooling.
Pricing
Bruno:Freemium
Voiden API Client:Open source
Plans
Bruno:Open Source $0 · Pro $6user/month per month, billed annually · Ultimate $11user/month per month, billed annually
Voiden API Client:—
Open source
Bruno:Yes, 47,301 GitHub stars
Voiden API Client:Yes
Works with
Bruno:Vault, Azure Key Vault
Voiden API Client:JavaScript, Python, Shell, REST, WebSocket, gRPC, GraphQL, GitHub Actions

Bruno features

  • Git-native collections. Store API requests as YAML files in your repo, enabling diff, branch, and merge workflows.
  • No cloud sync. All data stays on the local machine; no account or login required.
  • Multi-protocol support. Send HTTP, REST, GraphQL, gRPC and WebSocket requests.
  • Secret manager integration. Connect to Vault, Azure Key Vault and AWS Secrets Manager for credentials.
  • Built-in terminal & scripting. Run JavaScript scripts and use an integrated terminal for automation.
  • Workspace & collection runner. Organize requests in workspaces and run entire folders of requests at once.

Voiden API Client features

  • Executable Markdown Docs. Run API requests directly inside Markdown alongside documentation and explanations.
  • LEGO-style Request Blocks. Compose requests from reusable blocks (endpoint, headers, auth, params) that are version-controlled as text.
  • Multi-Protocol Support. Test REST, WebSocket, gRPC and GraphQL APIs without leaving the tool.
  • MCP Agent Integration. Expose requests as AI-agent callable tools and connect Claude, Codex or other MCP assistants.
  • CI/CD Runner. Run .void files headlessly in Node.js environments like GitHub Actions or GitLab CI with deterministic exit codes.
  • Advanced Auth & Scripts. Built-in OAuth, token, basic auth and pre/post request JavaScript, Python or Shell scripts.
  • Rich Media & Format Previews. Preview PDFs, images, videos and handle XML, YAML, JSON payloads directly in responses.
  • OpenAPI & Postman Import. Import OpenAPI specs or Postman collections to auto-generate .void files.

Bruno vs Voiden API Client FAQ

Is Bruno or Voiden API Client free?+

Bruno has a free plan (Open Source) and paid plans. Voiden API Client is free and open source.

Is Bruno or Voiden API Client open source?+

Yes, both are open source: Bruno (usebruno/bruno on GitHub, MIT license) and Voiden API Client (VoidenHQ/feedback on GitHub).

Do Bruno and Voiden API Client integrate with the same tools?+

Their integration lists don't overlap: Bruno lists Vault and Azure Key Vault; Voiden API Client lists JavaScript, Python, Shell, REST and 5 more.

On DevHunt

Voiden API Client

0 upvotes · Launched on DevHunt on Jan 6, 2026

Based on each tool's website and DevHunt data. Details may change; check the official sites.