Hoppscotch vs Insomnia

Covers REST, GraphQL (schema introspection, docs explorer,variables), WebSocket, SSE, Socket.IO and MQTT. gRPC is supported via the Hoppscotch desktop agent, though advanced streaming configuration still trails Insomnia's mature implementation. For 90% of REST and GraphQL work it is fast and complete.

Long-standing leader in multi-protocol depth. REST, GraphQL, gRPC with first-class Protobuf management, server reflection, and bidirectional streaming, plus WebSockets. OpenAPI import that scaffolds requests, environments and tests in one step is notably more mature than Hoppscotch's.

Browser-first architecture means near-instant startup (1-2s on M2/M3/M4), idle memory 120-180 MB, and no background sync daemon. Handles large workspaces without lag by lazy-loading from its own store rather than a heavy local database.

Electron app with richer UI and background services for sync and plugins. Startup 3-5s, idle 400-700 MB. Smooth for typical collections but can feel heavier with 500+ requests or when cloud sync resolves conflicts.

Cloud collections sync instantly when logged in, but the open-source self-hosted edition stores data locally and can be versioned alongside code via files. No proprietary lock-in: export is plain JSON that imports cleanly into Postman, Insomnia and Bruno.

Stores workspaces in a local NeDB/SQLite database and layers optional cloud sync or Git Sync on top. Git Sync pushes a snapshot of the internal database to a remote repo, which can be brittle with concurrent edits. True local-file-first workflows require discipline; cloud sync is the path of least resistance.

No account required to send requests. Self-hosted deployments never phone home, and the desktop PWA works fully offline. Ideal for air-gapped or regulated environments where API keys must not traverse a vendor cloud.

Offers Local Vault for fully offline work after the 2023 backlash, but the UI consistently nudges toward cloud login for collaboration, encrypted storage and team sharing. Privacy is achievable, but requires conscious configuration to avoid accidental sync of sensitive workspaces.

Supports importing OpenAPI and generating requests, but documentation publishing and linting are less developed. The focus remains on executing requests rather than governing API design.

Design-first heritage shines here: import OpenAPI, generate collections, mock servers via Inso CLI, lint specs, and deploy directly to Kong Gateway. For teams where the spec is the source of truth, Insomnia compresses multiple steps into one.

JavaScript pre-request and test scripts with environment variable manipulation. Hoppscotch CLI (hopp) runs collections in CI via npm, free and without token dance. Lacks Postman-style helper library depth, so complex chaining relies on vanilla JS.

JavaScript scripting plus a visual chaining system using template tags to pull values between requests. Inso CLI is powerful for linting, testing and Kong deployment, but advanced CI features often assume a paid cloud workspace.

No formal plugin store; extensibility comes from being open source. Community contributes adapters and the self-hosted edition is fully forkable. Powerful for engineers, less convenient for non-coders seeking one-click add-ons.

Mature plugin hub with hundreds of community plugins for auth helpers, data generators, themes and Kong extensions. Stable plugin API allows enterprise teams to ship internal plugins for proprietary workflows.

Deliberately spartan, keyboard-centric UI with adaptive theming and command palette. Multi-pane request editor feels instantaneous. Some advanced settings live in JSON rather than toggles, which engineers appreciate but may intimidate newcomers.

Often cited as the best-looking API client: clean colour-coded methods, elegant response viewer with syntax highlighting, and a dashboard that makes workspace organization obvious. More discoverable for newcomers and stakeholders.