gRPC Studio

Web · Linux · Self-hosted

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Freedom report

One barScore 5.4

Free tierNo free tier on record
Open codeNo open-source code on record
Runs widely2 of 6 device platforms
DocumentedPlans, terms and facts published

gRPC Studio is ranked #16 of 23 in gRPC tools on Freedom251. It runs on Linux, Self-hosted, Web.

Compared on gRPC tools

Deployment model: self_hosted
Server reflection: Yes

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The record

Purpose: gRPC Studio is a reflection-based UI for exploring and calling gRPC services.
Service discovery: It discovers services through gRPC reflection v1 and v1alpha.
RPC support: It supports unary, server-streaming, client-streaming, and bidirectional-streaming RPCs.
Protobuf forms: It renders dynamic protobuf request forms, including nested messages, maps, oneofs, enums, bytes, timestamps, and wrapper types.
Multiple targets: One instance can connect to multiple gRPC targets and switch between them in the UI.
Security: Outbound gRPC connections support TLS and mTLS, configurable per target.
Authentication: The backend supports authentication plugins for outbound metadata, and the web UI can optionally use Microsoft Entra ID authentication.
Request metadata: Users can edit custom gRPC headers per request; binary -bin keys are not supported, and configured auth-plugin and trusted user headers take precedence over user-supplied metadata.
Request history and sharing: It provides per-method request history and shareable request links.
Observability: The backend exposes Prometheus metrics for HTTP requests, gRPC calls, WebSocket connections, caches, and Node.js process metrics.
Deployment: The project provides Docker images and documentation for Docker Compose and Kubernetes deployment.
Deployment security: The Docker deployment guide says both images run as non-root users and recommends read-only config mounts; it also describes TLS/mTLS support for backend gRPC connections.
Compatibility limit: The target gRPC server must support reflection for gRPC Studio to discover services.
License: The repository is licensed under BSD-3-Clause.

Where it ranks on Freedom251

Best gRPC Tools in 2026#16 of 23

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Sources

github.com/electronicarts/grpc-studio· checked 4 Oct 2026
github.com/electronicarts/grpc-studio/blob/main/do· checked 4 Oct 2026