Build and exercise APIs without installing anything.
API Client is a Postman-style request builder with collections, environments, and shareable links — all encrypted client-side. Mock JSON Generator creates realistic test fixtures from a schema. Cron Expression Builder turns natural language into cron syntax with live next-fire previews. UUID Generator emits v1, v4, and v7 with sortable timestamps. Together they cover the inner loop of API development without leaving the tab you're already in.
Send HTTP requests and organize collections in your browser. Share collections via end-to-end encrypted links — server never sees your data.
Generate UUID v4 and v7 identifiers. Bulk generate and copy.
Generate arrays of realistic fake data for testing — users, products, addresses, and custom schemas.
Explain cron expressions in plain English and preview the next runs. All client-side.
Yes — AES-encrypted client-side. The encryption key lives only in the share URL hash.
v4 for unguessable IDs, v7 when you want lexicographic time order in the database.