Postman alternatives in 2026

Postman is the API platform most developers know, and for many teams it remains the right choice. People look for alternatives for practical reasons: they want a tool that runs in the browser without installation, they want collections stored as files in Git, they want to stay inside their code editor, they need a protocol their current tool lacks, or the plan that fits their team size costs more than they want to spend. As of October 2026, Postman's pricing page lists Free, Solo, Team and Enterprise plans, with the Free plan including 1 user (checked 22 October 2026).

This guide covers six alternatives fairly, including our own product, Swastik Codes. Everything about other tools is taken from their own websites and documentation as of October 2026. We avoid rankings: the right tool depends on how your team works, and the criteria below will tell you more than any list order.

How to choose

Answer these questions before comparing feature lists.

1. Where should requests come from? A desktop app or editor extension sends requests from your computer, so it can reach localhost, Docker networks and VPN hosts. A web app has to send requests through a server or a local helper. The Swastik Codes web app sends them through its server and cannot reach private addresses, while its desktop app for Windows and Linux sends them from your computer; Hoppscotch can use a local agent.
2. Where should collections live? Options are a vendor cloud (synced across devices and teammates), local files committed to Git (Bruno, Insomnia Git Sync, Thunder Client Git sync), or a self-hosted server (Hoppscotch, Apidog on-premises).
3. Which protocols do you need? Most tools cover REST and GraphQL. Coverage of WebSocket, Socket.IO, SSE, gRPC, MQTT and MCP varies a lot.
4. Do your existing tests need to keep working? If you have many Postman test scripts, a tool that runs the pm.* API directly saves rewrite time. Some tools translate Postman scripts on import; others have their own scripting API.
5. Do you need hosted services? Mock servers with public URLs, scheduled monitors and published docs need a server somewhere. File-based and editor-based tools generally leave these to you.
6. Does it need to run in CI? If yes, check whether a CLI exists and whether it is included in the free tier.
7. Licence and budget. Open-source tools let you audit and self-host. Commercial tools may offer support and enterprise features. Check current pricing on each vendor's site.

The alternatives at a glance

Swastik Codes

What it is. A browser-based API platform at swastik.codes, built to be familiar to Postman users. It imports Postman Collection v2.0, v2.1 and v3 files, environments and data dumps, and runs pm.* scripts in a compatible sandbox.

Strengths. Eight request types in one client: REST, GraphQL, WebSocket, Socket.IO, SSE, gRPC, MQTT and MCP. Hosted mock servers, monitors, published docs, load tests and flows. Collaboration with teams, comments, forks, pull requests and reviews. Free to use, with no paid plans today.

Limitations. No macOS desktop app yet (the desktop app is available for Windows and Linux). The web app cannot call localhost or private networks; the desktop app can. No self-hosted edition is available today; the swc CLI runs on Linux and Windows only. It is not open source.

Best for. Teams that want Postman-style collections and tests in the browser, broad protocol coverage, and team review without a paid plan. Full comparison: Swastik Codes vs Postman.

Insomnia

What it is. A desktop API client maintained by Kong, with source code under the Apache-2.0 licence.

Strengths. Choice of storage: Local Vault, Git Sync or Cloud Sync (which can be end-to-end encrypted). REST, GraphQL, WebSockets, SSE and gRPC, plus an MCP client. Pre-request and after-response scripts, a collection runner with CSV or JSON iteration data, OpenAPI design with linting, cloud or self-hosted mock servers, and the Inso CLI for CI. Imports Postman v2.0 and v2.1 collections.

Best for. Developers who want a polished desktop app with flexible storage and spec-first features. See Swastik Codes vs Insomnia.

Bruno

What it is. A Git-friendly, offline-first desktop API client. Its README states it is offline-only, with no plans to add cloud sync.

Strengths. Collections are plain-text files in your repository, reviewed alongside code. HTTP, GraphQL, gRPC (unary and streaming, with proto files or reflection) and WebSocket. Pre-request and post-response scripts and tests. The bru CLI. Imports Postman collections and translates common pm.* calls. The core is MIT licensed; Pro and Ultimate plans add features.

Best for. Teams that want API collections versioned in Git with no cloud. See Swastik Codes vs Bruno.

Hoppscotch

What it is. An MIT-licensed API client that runs in the browser, installs as a PWA or desktop app, and can be self-hosted.

Strengths. REST, GraphQL, WebSocket, SSE, Socket.IO and MQTT. Pre-request scripts and tests. Interceptors (a local agent, a proxy or a browser extension) to get past CORS and reach local services. Teams with role-based access. A CLI. Imports Postman, Insomnia, OpenAPI and HAR. API mocking and docs publishing are part of its Business plan.

Best for. Teams that want an open-source browser client they can host themselves. See Swastik Codes vs Hoppscotch.

Thunder Client

What it is. An API client extension for VS Code, JetBrains IDEs and VS Code-based editors.

Strengths. Stays inside your editor. Data is saved locally, with optional Git sync. Scriptless, GUI-based assertions as well as scripting. WebSocket, SSE and gRPC appear on its pricing page. A CLI for CI is part of paid plans.

Best for. Developers who want quick requests next to their code. See Swastik Codes vs Thunder Client.

Apidog

What it is. A commercial, design-first API platform with desktop apps for Windows, macOS and Linux and a web version, plus EU and on-premises options.

Strengths. Visual API design with OpenAPI and JSON Schema, schema validation while debugging, mock data, test scenarios with loops and branches, scheduled tasks, performance testing, generated documentation and a CLI. HTTP, GraphQL, gRPC, WebSocket, SOAP and SSE. Imports Postman v2.1 and OpenAPI.

Best for. Teams that design APIs first and want everything in one commercial platform. See Swastik Codes vs Apidog.

Moving off Postman safely

Whichever tool you pick, the safest route is the same:

1. Export every collection from Postman as Collection v2.1, plus environments and globals. A full data dump is also accepted by several tools, including Swastik Codes.
2. Import into the new tool and run each collection in its runner. Compare test results with a recent Postman run.
3. Keep the exports in version control, so you can always go back.

For Swastik Codes, the detailed walkthroughs are How to import a Postman collection and Migrating from Postman.

Frequently asked questions

What is a good free alternative to Postman?

Several tools have free options as of October 2026. Swastik Codes is free with no paid plans. Bruno and Hoppscotch have MIT-licensed open-source editions. Insomnia, Thunder Client and Apidog have free tiers alongside paid plans. Check each vendor's current terms.

Which Postman alternative runs in the browser?

Swastik Codes and Hoppscotch both run in a web browser. Apidog also offers a web version. Swastik Codes sends requests through its server; Hoppscotch can route them through a local agent, a proxy or a browser extension.

Which alternatives can run my Postman test scripts?

Swastik Codes runs the pm.* API directly. Insomnia documents that scripts from Postman v2.0 and v2.1 exports should work when imported. Bruno translates common pm.* calls to its own API on import, with an option to keep them unchanged. Test your own suite before switching.

Is it hard to switch from Postman?

For most teams it is a matter of exporting Collection v2.1 files and importing them. The time goes into checking that tests and authorization behave the same. Running the collection runner in both tools side by side is the quickest check.

Related

• Compare
• ComparisonSwastik Codes vs Postman
• GuideMoving from Postman to a web-based API client: what carries over and what to check
• GuideHow to import a Postman collection into Swastik Codes (and export it back)
• Features