We've compared 2 tools across pricing, features, ratings, and reviews to help you make an informed decision. No paid placements — just facts.
Compare different tools →| Feature |  Chatgpt.js Developer Tools |  Postman Developer Tools |
|---|---|---|
| Rating | No reviews yet | No reviews yet |
| Pricing | — | Free as of Aug 30, 2026 |
| Pricing Model | Free | Free |
| Free Plan | ||
| Free Trial | ||
| API Available | ||
| Verified |
| Verified |
| Founded | 2023 | 2014 |
| HQ | — | San Francisco, CA |
| Team Size | — | 501-1000 |
| Platforms | — | WebMacWindowsLinux |
| Top Integrations | ChatGPTjsDelivrnpm | GitHubSlackJiraDatadog+1 more |
| Key Features |
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| Description | chatgpt.js is a free, open-source client-side JavaScript library (plus an interactive CLI) that lets developers programmatically interact with the ChatGPT web interface and DOM without wrestling with the underlying markup. It's aimed at developers building browser extensions, userscripts, and web integrations, and it's known for being lightweight, object-oriented, and ultra-flexible — the same function can be called multiple ways (e.g. chatgpt.getLastResponse() or chatgpt.response.getLast()). What sets it apart from raw API wrappers is that it drives the existing ChatGPT UI directly, powering practical helpers like auto-continuing cut-off responses, keeping sessions fresh past time limits, and sentiment analysis. | Postman is the world's leading API platform used by over 30 million developers and 500,000 organizations. From API design to testing, mocking, and documentation, Postman provides everything you need to build better APIs faster. |
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