Apiboo vs Thunder Client
Thunder Client’s pitch is seductive: never leave VS Code. It is a lightweight REST client in the editor sidebar, with collections, environments and a GUI-based test builder that skips scripting entirely. For solo developers making straightforward REST calls between edits, that is genuinely convenient.
Its constraints show up as the work grows: the sidebar is REST-centric (GraphQL is covered, but WebSocket, SSE and gRPC sit behind paid plans), a panel squeezed next to your file tree is a cramped place to inspect a large response, and team features and Git-synced collections are paid too — Thunder Client moved from free-for-everyone to a feature-gated freemium model with per-user tiers.
Apiboo Workspace is the tool for when the API is the job, not a side glance: full protocol coverage, serious auth, mocking, and the team layer — in a window built for it.
| Feature | Apiboo Workspace | Thunder Client |
|---|---|---|
| Protocols | REST, GraphQL, WebSocket, SSE and gRPC | REST and GraphQL free; WebSocket, SSE and gRPC on paid plans |
| Runs as | Native desktop app for macOS, Windows and Linux | VS Code extension (sidebar panel) |
| Where your data lives | Local-first desktop app; works offline — collections live on your disk | Local files by default; Git sync and team sharing on paid plans |
| Secrets | End-to-end encrypted personal vault for secrets | Environment variables; local files |
| Auth depth | OAuth 2.0 with PKCE, AWS Signature v4, client certificates (mTLS) | Common auth types including OAuth 2.0 and AWS signature |
| Scripting & runner | Pre-request & test scripts with a collection runner | GUI-based scriptless tests; scripting and CLI runs on paid plans |
| Mock servers | Local and cloud mock servers | Not built in |
| Import / export | Imports Postman, Insomnia, Bruno, OpenAPI, HAR and cURL | Postman, Insomnia, OpenAPI and cURL import |
| Task boards | Kanban task boards built in | Not built in — though VS Code has extensions for everything |
| Team chat | Team chat with an AI assistant that builds and runs requests | Not built in |
| Database manager | Built-in DB manager (MySQL, PostgreSQL, SQLite) | Not built in |
| API docs | API docs from collections (OpenAPI) + rich-text docs with PDF export | Docs generation from collections (paid) |
| Pricing | Free to start, no credit card | Free tier with limits; paid Starter/Business/Enterprise per user |
| Hosting & compliance | Built in the EU; hosted on EU and US infrastructure; GDPR compliant | Local-first extension; vendor based outside the EU |
Last updated 2026-08-28. Competitor details are based on publicly available information and can change — check the vendor for current specifics. Spotted something out of date? Write to hello@apiboo.com
A sidebar is not a workspace
Editor integration is Thunder Client’s greatest strength and its permanent constraint. A sidebar panel is superb for firing the endpoint you just wrote; it is a cramped place to diff two large JSON responses, watch a WebSocket stream, or step through an OAuth consent flow. And the protocols modern backends start with — WebSocket, SSE and gRPC — are paid-plan features rather than part of the free client.
Apiboo Workspace gives API work a full window and the full protocol set — REST, GraphQL, WebSocket, SSE and gRPC — with OAuth 2.0 (PKCE), AWS Signature v4 and mTLS handled natively, plus local and cloud mock servers and a collection runner with real pre-request and test scripts.
Free where it counts, team-ready when you are
Thunder Client’s free tier comes with feature limits, and the features teams actually need (Git-synced collections, shared workspaces, CLI runs, docs generation, the modern protocols) sit in its paid Starter, Business and Enterprise tiers. That is a legitimate business model; it just means the "free lightweight client" is not what your team would be running.
Apiboo Workspace is free to start with no credit card, works offline with everything stored locally and secrets in an end-to-end encrypted personal vault, and its team layer — real-time collaboration, shared workspaces, roles, Git sync — comes with boards, chat, a database manager and docs in the same app, rather than as add-ons to a sidebar.
Your collections come with you
Apiboo imports Postman, Insomnia, Bruno, OpenAPI, HAR and cURL. Export your Thunder Client collections to the Postman format and they import directly — folders, requests and environments included.
Where Thunder Client is still the better fit
If your API usage is genuinely light — a handful of REST endpoints you poke while editing the code that serves them — an in-editor client is the lowest-friction option there is, and installing a full workspace app would be overkill. For that kind of light REST use, Thunder Client’s free tier is genuinely enough.
When the requests get harder (streaming, gRPC, real auth), the responses get bigger, or a second person joins the project, that is the point where a dedicated workspace pays for its window — and where Apiboo is built to take over.
Frequently asked questions
Can I import Thunder Client collections into Apiboo?
Yes — export them in the Postman collection format from Thunder Client and import directly into Apiboo Workspace, which also imports Insomnia, Bruno, OpenAPI, HAR and cURL.
Does Apiboo integrate with VS Code?
Apiboo Workspace is a standalone native app rather than an editor extension — it runs beside your editor with full protocol support, and Git sync connects a workspace to the same GitHub repos your code lives in.
Is Apiboo free for commercial use?
Apiboo Workspace is free to start for any use, with no credit card; team and cloud features are part of paid plans.