Bring your collection.
Import Postman or local OpenAPI files in the app. Review migration warnings before opening your new workspace.
Migration guide ↗THE NATIVE, LOCAL-FIRST API WORKSPACE
Import a collection. Inspect the response. Run the tests. Commit the files.
One project, from your desktop to your terminal. No account in between.
Try Postly ↗ Watch the 66-second demo ↓ Open source · MIT · Built with Rust01 / THE WORKSPACE
66 seconds. Actual loopback API. Silent, captioned, normal speed.
Full player & transcript ↗Full-resolution screenshot ↗02 / FROM MIGRATION TO A COMMIT
Keep the whole API workflow together.
Postly's desktop and CLI read the same project.
Import Postman or local OpenAPI files in the app. Review migration warnings before opening your new workspace.
Migration guide ↗Edit a parameter, send a real request and inspect the body. Compare JSON against a saved example, with explicit exclusions for changing fields.
Desktop workflows ↗Run saved requests and assertions in the app or terminal. Review plain-text TOML changes with an ordinary Git diff.
CLI reference ↗03 / A SMALL, REAL FIRST PROJECT
The built-in Orders example creates a workspace and starts a loopback API. Send a request, change paid to pending, and see the response change.
No account, API key or external service. Native assertions need no Node.js.
Walk through the example ↗postly demo ./orders-demo --port 3979Leave the server running. In another terminal:
postly run ./orders-demoBoth requests pass against the built-in API.
Change the checks; run them again.
Requires the current preview binaries or a source build.
The old v0.1.0 release does not include this example.
04 / CAPABLE, WITH CLEAR BOUNDARIES
One request per TOML file. Collections belong beside your code. Local environment values and runtime state stay out of ordinary commits.
HTTP, GraphQL, SSE, WebSocket and gRPC workflows share the Rust core. Read each protocol's guide for its supported behavior.
Postman migration has documented limits. Scripts are opt-in and require Node.js. Unsupported or ambiguous fields produce diagnostics.
Read the compatibility evidence ↗No Postly account or hosted workspace required. Remote requests still contact the endpoints you choose; local-first doesn't make a remote API offline.
Read the privacy model ↗05 / EARLY SOFTWARE, OPEN DEVELOPMENT
The redesigned desktop ships in the public 0.2.0-preview.1 for macOS Apple Silicon. The older v0.1.0 archive does not contain the UI shown here.
This preview is ad hoc signed and not notarized. Clean-machine, Developer ID, Windows/Linux and Intel macOS validation remain open.