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Skip to contentHTTP requests, networking and API utilities in one workspace
Popular modes
API Studio is a lightweight HTTP client in the browser — craft requests, inspect headers, format JSON responses and generate curl snippets. Ideal for debugging webhooks or teaching REST without installing Postman.
Click Open studio — your files and sidebar context stay on one page.
Pick a tool from the sidebar or a popular chip above. Switch anytime without reload.
Download the result or jump to a related studio with your file still loaded.
Step-by-step pages for the most common tasks in this studio.
Grouped like the sidebar — click to open directly.
Yes — Tentaco studios are free with no account required.
Most modes run entirely in your browser. Server-backed features (file share, DNS lookup) are clearly marked with privacy badges.
33 modes in one workspace — switch instantly from the sidebar without leaving the page.
Many studios work offline after the first visit thanks to the Tentaco PWA. Install the app for the best offline experience.