Is It Time to Leave Postman in 2026? Secure API Testing and Migration After the Axios npm Attack

TL;DR

Postman’s forced cloud accounts, rising pricing, and reliance on npm packages like Axios (compromised in March 2026) are pushing dev teams to seek alternatives. This actionable guide compares Bruno, Hoppscotch, Insomnia, Yaak, and Apidog based on features, pricing, Git support, and supply chain security, and includes step-by-step migration instructions.

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Introduction

In 2026, the API testing landscape changed—not with features, but with a security breach.

On March 31, 2026, Axios (the HTTP client library used in millions of API test scripts) was compromised via a stolen npm maintainer account. A cross-platform RAT was deployed to developers running npm install, impacting roughly 83 million weekly downloads over three hours.

If your API testing workflow relies on npm packages for HTTP requests, you were affected. That includes Postman-based workflows using Axios in pre-request scripts, test scripts, or Newman (Postman’s CLI runner) integrations.

This isn’t the only reason teams are moving away from Postman. Pricing increases, forced cloud accounts, and removal of local-only Scratch Pad mode have been motivators since 2023. The supply chain security angle is new, and it should influence your next API testing tool decision.

💡 Apidog provides a complete API development platform with a built-in HTTP client, zero npm dependencies for core functionality, and full offline capability. Try Apidog free to follow along with the migration steps below.

This guide compares the top five Postman alternatives for 2026: features, Git integration, pricing, and supply chain security.

Why teams are leaving Postman

The pricing problem

Postman’s free tier no longer covers most solo developer needs. The free plan now restricts collection runs, monitoring, and collaboration. Basic starts at $12/user/month; Professional at $23/user/month.

For many teams, the cost isn’t justified. API testing is essential, not a premium add-on.

The cloud account requirement

Postman removed Scratch Pad (local-only mode) in 2023. Every user now needs a cloud account, and collections sync to Postman’s cloud by default. For teams with sensitive APIs (healthcare, fintech, government), this raises compliance issues.

While Postman offers a Vault for local secrets, its default architecture is cloud-first. Teams needing air-gapped or offline testing have limited options.

The supply chain problem (new in 2026)

Postman’s ecosystem depends on npm packages. Newman (CLI runner) runs from npm. Pre-request and test scripts can import npm packages. Custom visualizers use npm dependencies.

The Axios compromise exposed a key risk: any tool depending on npm packages for HTTP communication inherits npm’s supply chain vulnerabilities. A compromised HTTP client can access or exfiltrate request data—including tokens, request bodies, and responses.

This doesn’t mean Postman is insecure by design. But you should now evaluate API testing tools by the number and risk profile of their third-party dependencies.

The five Postman alternatives compared

Apidog

Philosophy: All-in-one API lifecycle platform—design, test, debug, mock, and document in one place.

Apidog isn’t just an API client; it’s a complete API development platform with an integrated HTTP client.

Strengths:

• Built-in HTTP client with zero npm dependencies
• Visual test builder with no-code assertions
• Mock server with dynamic responses
• Auto-generated docs from API specs
• Full OpenAPI/Swagger visual designer
• Real-time team collaboration
• CI/CD integration via Apidog CLI
• Import from Postman, Swagger, OpenAPI, cURL, and HAR
• Branch support for API versioning
• Offline desktop app

Weaknesses:

• Full platform may be more than needed for simple HTTP use cases
• Cloud sync is default (offline mode available)
• Smaller open-source community than Bruno or Hoppscotch

Pricing: Free tier with generous limits; advanced collaboration via team plans.

Supply chain: Self-contained; HTTP client not from npm. Only Apidog CLI is npm-distributed, and it doesn’t proxy HTTP requests through third-party libraries.

Bruno

Philosophy: Offline-first, Git-native, no cloud.

Bruno stores collections as plaintext .bru files on your filesystem—alongside your code and versioned in Git.

Strengths:

• Human-readable files in Git
• No cloud account, ever
• Open-source (MIT)
• One-time purchase for advanced features (Golden Edition)
• REST, GraphQL, WebSocket support
• Import from Postman, Insomnia, OpenAPI

Weaknesses:

• Desktop-only
• No built-in encryption for Git secrets (Golden Edition adds this)
• Smaller ecosystem
• Can lag on large collections
• No built-in mock server

Pricing: Free (open-source); one-time payment for Golden Edition.

GitHub stars: 30,000+

Supply chain: Desktop app, no npm dependency chain for HTTP. Collections stored locally.

Hoppscotch

Philosophy: Fast, browser-first, open-source.

Hoppscotch runs as a PWA—open your browser and start testing.

Strengths:

• Zero install, browser-based
• REST, GraphQL, WebSocket, SSE, Socket.IO
• Unlimited workspaces (free tier)
• Self-hostable for enterprise
• Lightweight and fast
• Open-source (MIT)

Weaknesses:

• Browser security model limitations
• Self-hosting adds infra overhead
• Fewer integrations than desktop tools
• Team features need Hoppscotch Cloud or self-hosting
• No official CLI runner (community options exist)

Pricing: Free (open-source); enterprise self-hosting available.

GitHub stars: 67,000+

Supply chain: Browser-based, no local npm dependencies. Self-hosted has server-side deps.

Insomnia

Philosophy: Mature desktop client for complex API workflows.

Insomnia (by Kong) is a feature-rich Postman alternative with deep protocol and plugin support.

Strengths:

• Mature, feature-rich desktop client
• Git Sync for versioned collections
• Inso CLI for CI/CD
• Plugin ecosystem
• REST, GraphQL, gRPC, WebSocket support
• Design-first OpenAPI workflow

Weaknesses:

• Cloud account required since 2023
• Owned by Kong (commercial)
• Plugin system introduces npm dependency risks
• Heavier resource usage
• Community trust hit by the cloud shift

Pricing: Free tier; team plans from $12/user/month.

GitHub stars: 35,000+

Supply chain: Desktop with plugin system (npm). Git Sync adds cloud dependency. Inso CLI has npm deps.

Yaak

Philosophy: Developer-first, no corporate bloat. Built by Insomnia’s creator.

Yaak is a return to Insomnia’s original principles.

Strengths:

• Built-in encryption for Git secrets
• Zero telemetry
• REST, GraphQL, gRPC, WebSocket support
• Fast, low resource usage
• Import from Postman, Insomnia, OpenAPI
• Free and open-source

Weaknesses:

• Newest, smallest community
• Fewer advanced features
• No built-in CI/CD runner (yet)
• No mock server
• Limited team features

Pricing: Free.

GitHub stars: Growing (new project)

Supply chain: Desktop, minimal dependencies. Local-first with encrypted Git storage.

Feature comparison table

Feature	Postman	Bruno	Hoppscotch	Insomnia	Yaak	Apidog
REST	Yes	Yes	Yes	Yes	Yes	Yes
GraphQL	Yes	Yes	Yes	Yes	Yes	Yes
gRPC	Yes	No	No	Yes	Yes	Yes
WebSocket	Yes	Yes	Yes	Yes	Yes	Yes
Mock server	Yes	No	No	Plugin	No	Yes
Auto docs	Yes	No	No	No	No	Yes
Visual test builder	Yes	No	No	No	No	Yes
Git-native storage	No	Yes	No	Git Sync	Yes	Branch support
Offline mode	Limited	Yes	No	Limited	Yes	Yes
CI/CD runner	Newman	No	Community	Inso	No	Apidog CLI
Open source	No	Yes	Yes	Partial	Yes	No
No cloud account	No	Yes	Self-host	No	Yes	Free tier offline
No npm HTTP deps	No	Yes	Yes (browser)	No	Yes	Yes
Secret encryption	Vault	Golden Ed.	N/A	No	Built-in	Built-in

The supply chain security angle

Supply chain security is critical in 2026. Here’s how each tool’s dependency model impacts your security posture:

Tool	Core HTTP engine	npm dependencies in workflow	CI/CD npm exposure
Postman	Built-in	Scripts can import npm packages	Newman (npm)
Bruno	Built-in	Minimal	None
Hoppscotch	Browser fetch	None (browser-based)	Community runners
Insomnia	Built-in	Plugins (npm)	Inso (npm)
Yaak	Built-in	Minimal	None
Apidog	Built-in	None for core workflow	Apidog CLI (self-contained)

What the Axios attack means for each tool

• Postman: If your scripts used require('axios') or other npm HTTP libraries, the Axios compromise could have run in your Postman runner. Newman (npm) in CI/CD was exposed during the attack window.
• Bruno: Not affected. Bruno’s HTTP client is built-in; no npm packages in execution path.
• Hoppscotch: Not affected in browser mode. Uses browser-native fetch. Self-hosted deployments have server-side dependencies to audit.
• Insomnia: Potentially exposed via plugins and Inso CLI. Core HTTP is built-in, but plugins can introduce npm dependencies.
• Yaak: Not affected. Minimal dependencies, self-contained desktop app.
• Apidog: Not affected. Built-in HTTP client; no npm dependency chain. Apidog CLI is npm-distributed but doesn’t execute HTTP requests via third-party libraries.

How to migrate from Postman

Step 1: Export your Postman collections

In Postman:

• Go to your collection → three dots → "Export"
• Choose Collection v2.1 format (JSON)

For bulk export via the Postman API:

# Using Postman API
curl -X GET "https://api.getpostman.com/collections" \
  -H "X-Api-Key: YOUR_POSTMAN_API_KEY" | jq '.collections[].uid'

Step 2: Import into your chosen alternative

• Bruno: File > Import Collection > Postman Collection. Converts to .bru files.
• Hoppscotch: Settings > Import > Postman. Upload your JSON.
• Insomnia: Application > Preferences > Data > Import Data > From File.
• Yaak: File > Import > Select your Postman export file.
• Apidog: Project Settings > Import > Postman Collection. Apidog preserves environments, variables, and scripts. Also supports importing OpenAPI, Swagger, cURL, and HAR.

Step 3: Convert test scripts

Postman test scripts use the pm.* API. Each alternative has its approach:

Postman:

pm.test("Status code is 200", () => {
  pm.response.to.have.status(200);
});

pm.test("Response has user data", () => {
  const json = pm.response.json();
  pm.expect(json.name).to.exist;
});

Apidog (visual assertions):

• Response status = 200
• JSON path $.name exists
• Response time < 500ms

For advanced logic, Apidog supports custom scripts with a similar API.

Step 4: Set up environments

Export Postman environments and import into your new tool. Most alternatives support similar environment variable workflows. Apidog adds branch support for API versioning and environment segregation.

Step 5: Update CI/CD pipelines

Replace Newman with your new tool’s CLI:

Postman (Newman):

newman run collection.json -e environment.json

Apidog CLI:

apidog run --test-scenario-id YOUR_SCENARIO_ID

Insomnia (Inso):

inso run test "My Test Suite" --env "Production"

Which alternative is right for your team?

Choose Apidog if:

• You want a complete API lifecycle platform
• Need mock servers, auto-generated docs, visual testing
• Supply chain security is critical (no npm HTTP deps)
• Migrating a team from Postman and need feature parity
• Require branch support for API versioning

Choose Bruno if:

• You want Git-native collections, zero cloud dependency
• Your team values open-source, file-based workflows
• Don’t need mock servers or auto docs
• Budget is a concern (core is free forever)

Choose Hoppscotch if:

• You want zero install, browser-based access
• Your team needs instant, distributed access
• Comfortable self-hosting for team features
• Prefer lightweight tools over full platforms

Choose Insomnia if:

• You need gRPC support along with REST/GraphQL
• Git Sync is important
• Already using Kong’s ecosystem
• Need plugin extensibility

Choose Yaak if:

• Privacy is top priority (no telemetry)
• Need built-in secret encryption for Git
• Prefer fast, minimal tools
• Trust Insomnia’s creator’s design philosophy

Download Apidog free to test migration with your existing Postman collections.

FAQ

Can I use Postman collections in other tools?

Yes. All five alternatives support importing Postman Collection v2.1 format. Environments, variables, and basic scripts transfer well, but complex usage of the pm.* API may need manual conversion.

Is Postman still a good tool?

Postman remains feature-rich and well-documented. For solo developers who are fine with cloud accounts and the pricing, it’s still capable. The main concerns are pricing, cloud dependency, and npm supply chain exposure—not core features.

Does the Axios attack affect Postman directly?

The Axios compromise doesn’t affect Postman’s built-in HTTP client, but if your scripts or CI/CD (Newman) imported Axios or other npm packages, those were exposed during the attack window.

Which alternative has the best CI/CD integration?

Apidog CLI and Insomnia’s Inso offer mature CI/CD integrations. Apidog CLI is self-contained and doesn’t use npm packages for HTTP. Inso has npm dependencies. Bruno and Yaak don’t have official CLI runners yet.

Can I self-host any of these tools?

Hoppscotch supports self-hosting for teams. Apidog offers on-premise deployment for enterprise. Bruno, Yaak, and Insomnia are desktop-first with optional cloud features.

How long does migration from Postman take?

For a small team (under 50 collections), expect 1–2 hours for import and verification. Heavy pm.* API usage may take longer to convert. Environment and variable migration is typically straightforward.

Is open-source always more secure than proprietary?

Not automatically. Open-source tools benefit from public code review but expose their attack surface. Proprietary tools restrict access but lack transparency. The best security uses transparent tooling with minimal dependencies, regardless of license.

Key takeaways

• Postman’s pricing, cloud requirements, and npm exposure are pushing teams to alternatives in 2026.
• The Axios supply chain attack means you must now evaluate third-party dependencies in API testing tools.
• Bruno and Yaak provide the strongest offline, Git-native workflows.
• Hoppscotch is the easiest to adopt (zero install).
• Apidog delivers full Postman feature parity while eliminating npm HTTP dependencies.
• Migration is straightforward for all five alternatives; collection import is broadly supported.

Your API testing tool shouldn’t add risk to your security posture. Evaluate the dependency chain as well as the feature set, and choose the tool that gives you control over your infrastructure.