Convert Postman collections to OpenAPI 3.0 specs. Migrate your API documentation. Code never leaves your device — formatting and validation run locally in your browser.
Content reviewed October 2026 · About Toolzum
Convert OpenAPI specs into Postman collections with requests, auth, and examples. Import 50 endpoints in one click — local conversion, free, no signup.
Generate Markdown API documentation from OpenAPI specs with endpoints and examples. Publish clean reference docs fast — local conversion, free, no signup.
Compute SHA-1, SHA-256, SHA-384, or SHA-512 hashes of text content using the Web Crypto API. Code never leaves your device — formatting and validation run locally in your browser.
Looks up bank details from an 11-character IFSC code — bank name, branch, address, city, district, and contact info. Live lookup via the Razorpay IFSC API.
Convert values between string, number, boolean, array, and object types with validation. Fix API type mismatches fast — local conversion, free, no signup.
Postman collections become OpenAPI operations with paths and methods.
Collection auth schemes translate to OpenAPI security definitions.
Saved example responses carry into the generated spec fully.
No — conversion runs locally in your browser, free with no signup.
Postman Collection Generator
Generate Postman collection JSON from endpoint descriptions. Create ready-to-import collections with method and path for each endpoint.
OpenAPI to Postman
Convert OpenAPI specs into Postman collections with requests, auth, and examples. Import 50 endpoints in one click — local conversion, free, no signup.