PostNot

Local-first desktop API client for people who want a fast tool for HTTP APIs without living in a browser tab.

PostNot is a fully AI-generated software project: the codebase was produced end-to-end by AI agents, with no human-written code in the repository.

Download latest release Source on GitHub Build from source

Screenshots

A quick look at the interface from a local development session (Vite preview in the browser at the same routes as the desktop app).

PostNot main window showing HTTP method, URL bar, request tabs, and response panel — Request workspace — compose, send, and inspect responses.

PostNot sidebar with nested folders and saved requests in a tree layout — Collections — nested folders and saved requests in the sidebar.

PostNot environments editor with variable names and values — Environments — {{variable}} substitution and secret handling.

PostNot settings or about area showing version and preferences — Settings and updates — persisted preferences and release checks.

What it does

Everything runs on your machine: persistence, history, and imports stay local unless you export them yourself.

HTTP requests

Compose and send HTTP requests from a desktop-native UI.

Collections & folders

Save requests into collections and nested folders; browse with tree guides and folder icons.

Environments

Use environments and {{variable}} substitution across requests.

Dynamic variables

Built-in dynamic values like Postman-style $guid and $timestamp.

Secrets

Store secret environment values in the OS credential store, not in plain SQLite.

History

Inspect request history locally with sensible redaction for secrets.

Import / export

Postman collections and environments, cURL import, Postman-compatible export.

Multipart & files

Attach local files to multipart requests.

Scripts

Pre-request and test scripts on saved requests (JavaScript in the UI around each send).

Polish

Floating notifications, persisted settings, and signed in-app update checks.

Why PostNot

Local-first

Request data and app state live on your machine.

Desktop-native

Rust request execution and Tauri packaging instead of a browser-only shell.

Practical portability

Bring data in from Postman and export it back out when you need to.

Safer environment handling

Secrets stay out of SQLite and are redacted from stored history snapshots.

Privacy & storage

SQLite-backed app data lives under the Tauri app data directory on your system.
Secret environment variables are stored in the operating system credential store.
When requests use secret variables, history keeps unresolved {{variable}} references rather than resolved secret values.

Current status

Pre-1.0. The core workflow is already usable; the product is still growing in areas like richer scripting, multi-request workflows, broader polish, and updater channel decisions. Follow CHANGELOG.md and Releases for updates.