Postman Problems & Issues
Developer ToolAPI development platform for building and testing APIs
Postman pioneered API testing tools and remains feature-rich. However, forced account requirements, cloud sync, performance issues, and bloat have frustrated developers. Many are switching to Bruno, Insomnia, or Thunder Client for simpler, faster, privacy-respecting alternatives.
Overview
API platform for designing, testing, and documenting APIs. G2: 4.6/5 stars but growing complaints about bloat. Developers frustrated with forced login, performance degradation, and resource consumption. Once lightweight, now considered bloated by many developers who are switching to alternatives like Bruno, Insomnia, and Hoppscotch.
Signals & Issues
Patterns extracted from real user feedback — not raw reviews.
Postman startup times have ballooned to 14+ seconds. The app becomes sluggish after running for a while, requiring restarts. Developers report the native application is extremely slow or unresponsive, especially after updates. One user measured 399MB disk space usage for what should be a simple HTTP client.
Postman consumes excessive system resources. CPU fans constantly spinning, CPU usage spiking to 50-60% while barely doing anything. Memory consumption grows over time, especially with large workspaces or long-running sessions. Multiple GitHub issues report this problem persisting across versions.
Postman doesn't work well with large collections or on lower-end machines. The app freezes randomly or crashes completely. Users with hundreds of API endpoints experience significant lag when navigating or searching collections.
Postman v10 removed offline mode entirely. Users MUST create an account and login to use the app. You cannot save requests to collections without signing in. This is especially problematic for developers in corporate environments where external account creation is restricted.
What started as a simple REST client has become bloated with API documentation, mock servers, monitoring, and collaboration features. Developers who just want to test APIs must navigate through unnecessary complexity. The constant push toward web app and new features makes it feel overwhelming.
Many features depend on an active internet connection. The lack of fully functional offline mode is restrictive in low-connectivity environments or air-gapped development setups. Enterprise developers in secure environments can't use Postman at all.
Pre-request and test scripts have a steep learning curve. Error messages are unclear, making debugging difficult. New users struggle with advanced features like environments, dynamic variables, and test assertions. Documentation exists but practical application is challenging.
Logging in means API requests and data are synced to Postman's cloud servers. This raises significant privacy concerns for developers handling sensitive data, client APIs, or proprietary information. Many companies prohibit cloud sync for security reasons.
Users report losing all their collections, variables, and environments after refusing to create an account or after updates. Data cannot be recovered even after later creating an account. Critical workflow data lost permanently.
Team collaboration features have sync issues causing data conflicts, duplicate collections, and lost changes. Managing team permissions, collection versioning, and API definition updates becomes complicated with larger teams. Changes sometimes don't sync properly between team members.
Postman's March 2026 pricing update limits the free plan to just 1 user. Previous free teams must upgrade or lose collaboration features. The constant addition of paid add-ons makes pricing confusing, with costs escalating quickly for teams.
Postman doesn't support direct connections to databases like MongoDB, PostgreSQL, or CosmosDB. Users must export data manually for testing, adding extra steps to workflows. Competitors offer better database integration capabilities.
Trustpilot reviews cite poor customer service on billing issues. Postman is inflexible about refunding mistakenly added seats. Cancellation requests through the website don't complete and must be manually processed, with some requests remaining unprocessed for weeks.
What Users Love
Comprehensive API testing and documentation platform
Postman provides a complete suite for API development - designing, testing, documenting, and monitoring APIs in one place. The all-in-one approach eliminates switching between multiple tools for teams that need the full feature set.
Intuitive interface for basic API testing
For simple API testing, Postman's interface is straightforward. Sending requests, viewing responses, and managing basic collections is easy to learn. Most developers can start testing APIs within minutes.
Wide range of authentication protocol support
Postman supports OAuth 1.0, OAuth 2.0, API keys, Bearer tokens, AWS Signature, and more. Built-in auth handling saves time compared to manually constructing headers. Auto-refresh for OAuth tokens is particularly useful.
Strong collaboration features for teams
Shared workspaces, team libraries, and collection sharing make collaboration easier for API teams. Version history, comments, and role-based access control support enterprise workflows when sync works properly.
Extensive CI/CD integration capabilities
Newman CLI runner enables Postman collections in CI/CD pipelines. Integration with Jenkins, GitHub Actions, and other CI tools allows automated API testing. Collection runs can generate reports for test results.
Industry standard with large community
Postman is the most widely used API platform, meaning extensive documentation, tutorials, and community support exist. Most API documentation includes Postman collection import buttons. Job listings often specifically mention Postman experience.
Pricing Plans
Users: 1 user (as of March 2026)
Storage: N/A
Limitations: 1 user only, No team workspaces, No SSO, No admin controls, Limited collection runs, No phone support
Users: Per user
Storage: N/A
Limitations: Limited API governance, No SSO, No audit logs, No custom roles, Basic reporting only
Users: Per user
Storage: N/A
Limitations: No SSO/SAML, No audit logs, No dedicated support, Custom domain requires Enterprise
Users: Per user
Storage: N/A
Limitations: Requires sales contact, Long procurement process, Annual billing only
Features
Core
- REST API Testing
Core functionality, works well
- GraphQL Support
Built-in GraphQL testing
- gRPC Support
Added in recent versions
- WebSocket Testing
Available for real-time APIs
- Offline Mode
Removed in v10, requires login
Testing
- Collection Runner
Automated test execution
- Pre-request Scripts
JavaScript-based automation
- Test Assertions
Built-in assertion library
Development
- Mock Servers
Paid plans, usage limited
Documentation
- API Documentation
Auto-generate from collections
Collaboration
- Team Workspaces
Paid plans only (post March 2026)
- Version History
Track collection changes
CI/CD
- Newman CLI
Command-line collection runner
- CI/CD Integration
Jenkins, GitHub Actions, etc.
Enterprise
- SSO/SAML
Enterprise plan only
- Audit Logs
Enterprise plan only
Integrations
- Git Integration
Available but cloud-centric
Privacy
- Local-only Storage
Requires cloud sync with account
Who Should Use This?
Good Fit
Enterprise teams needing full API lifecycle management
Large organizations needing API design, testing, documentation, mocking, and monitoring in one platform benefit from Postman's comprehensive features. SSO, audit logs, and governance features support enterprise requirements.
Teams already invested in Postman ecosystem
Organizations with existing Postman collections, established workflows, and team familiarity may find migration costs outweigh Postman's drawbacks. The switching cost is real for large API portfolios.
QA teams doing automated API testing
Postman's test scripting, collection runner, and Newman CLI integration support automated API testing workflows. Teams already doing CI/CD integration benefit from the established tooling.
Neutral
Teams needing Git-based API workflow
While Postman has Git integration, Bruno stores collections as files that work natively with Git. Teams that want collections versioned alongside code may prefer Bruno's approach over Postman's cloud-centric model.
Avoid
Developers who value privacy and local-first tools
Postman requires account creation and syncs data to cloud by default. Developers handling sensitive APIs or working in privacy-conscious environments should use Bruno or Thunder Client which store everything locally.
Developers on resource-constrained machines
Postman's Electron-based app consumes excessive memory and CPU. Developers on older laptops or lower-end machines will experience constant lag and freezes. Lightweight alternatives like Thunder Client or Hoppscotch are better choices.
Developers in air-gapped or offline environments
Postman requires internet connection and login to function. Developers in secure corporate environments, air-gapped networks, or frequently offline situations cannot use Postman effectively. Bruno works entirely offline.
Solo developers doing simple API testing
For basic REST API testing, Postman is overkill. The bloat, account requirement, and resource consumption aren't worth it for simple use cases. Thunder Client, Hoppscotch, or even curl are better for quick API calls.
Regret Patterns
Common buyer's remorse scenarios reported by users.
Developers who updated Postman and declined to create an account lost all their collections, variables, and environments. The data was not recoverable even after later creating an account. Years of API documentation gone.
Teams paying $14-49/user/month discover Bruno, Hoppscotch, or Thunder Client after committing to annual billing. These alternatives provide sufficient functionality for most use cases at zero cost.
Developers realize too late that their API keys, auth tokens, and client endpoints were synced to Postman's cloud. Especially problematic for contractors working with sensitive client data or in regulated industries.
Developers notice their laptop running hot, fans spinning constantly, and other applications slowing down. Investigation reveals Postman consuming excessive CPU and memory, impacting productivity across all work.
Developers at companies with restricted networks discover Postman requires external account creation and cloud connectivity. IT security blocks this, making Postman unusable. Should have chosen local-first alternative.
Teams invested heavily in Postman workflows, monitors, and documentation, then faced pricing increases and plan restructuring. Migration becomes expensive due to lock-in, but staying is increasingly costly.
When It Breaks Down
Scenarios where this product tends to fail users.
Postman requires internet connectivity and account login. In secure corporate environments, air-gapped development networks, or during internet outages, Postman becomes unusable. Bruno works entirely offline.
Postman becomes extremely slow with large collections. Searching, navigating, and running collections causes freezes and crashes. Teams with large API portfolios experience significant productivity loss.
Postman's Electron base and feature bloat require significant resources. Developers on 8GB RAM machines or older laptops experience constant lag, long startup times, and system-wide slowdowns.
Postman syncs data to cloud by default. When working with client secrets, proprietary APIs, or regulated data, this creates security and compliance risks. Organizations may prohibit cloud-synced API tools.
Multiple team members editing collections simultaneously causes sync conflicts. Changes get lost, duplicates appear, and collection state becomes inconsistent. Particularly problematic during sprint deadlines.
At $14-49/user/month, adding team members significantly increases costs. Growing from 5 to 20 developers means $3,360-11,760/year. Budget-conscious teams find free alternatives provide sufficient functionality.
Postman collections live in their cloud, separate from code repositories. Teams wanting API collections versioned with code struggle with Postman's model. Bruno stores collections as files that commit directly to Git.
Alternatives Users Switch To
Bruno
9x mentionedBruno was created specifically by developers frustrated with Postman's bloat. It's open-source, stores collections as files (Git-friendly), works offline, and requires no account. The most popular switch for developers who want simplicity.
Insomnia
8x mentionedInsomnia offers a cleaner, lighter interface with strong GraphQL support. Backed by Kong, it provides REST, GraphQL, and gRPC testing with better performance than Postman. Popular among developers who want simplicity without losing power.
Thunder Client
8x mentionedThunder Client is a VS Code extension for API testing, eliminating the need for a separate app. Lightweight, fast, and integrated into developers' existing workflow. Perfect for developers who live in VS Code.
Hoppscotch
7x mentionedHoppscotch is a web-based, open-source alternative focused on speed and privacy. No installation needed, works in browser, and has a clean interface. Ideal for quick API testing without Postman's overhead.
HTTPie
5x mentionedHTTPie offers both CLI and desktop app for API testing with a focus on developer experience. Clean syntax for terminal users, beautiful desktop app for visual testing. Growing community among CLI-focused developers.
Frequently Asked Questions
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