Fast REST API Client for VS Code.

A fast, local-first REST client for VS Code and a focused alternative to Postman and Thunder Client, with collection runner, scripting, tests, cookies, environments, and Postman compatibility.

Why Developers Love LiteClient

A better Postman and Thunder Client alternative for VS Code

LiteClient keeps API testing inside your editor, removes account friction, and gives you the features serious API workflows actually need.

Built for VS Code

Native panels, trees, themes, tabs, and shortcuts make LiteClient feel like part of your editor instead of a separate app squeezed inside it.

Local-first by default

No accounts, no telemetry, no forced sync. Keep collections, environments, cookies, and history on your machine or in workspace storage.

Ready for real workflows

Use collection runner, scripts, test assertions, OAuth 2.0, collection variables, and Postman import/export without leaving VS Code.

Get Started in 3 Steps

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Install ExtensionAdd LiteClient from VS Code Marketplace in seconds

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Create CollectionOrganize your API requests in structured collections

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Start TestingSend requests and manage your APIs right in your editor

Learn LiteClient faster with the docs

Clear links into installation, quickstart, OAuth, scripting, migration, and release updates help both users and search engines understand the product faster.

Installation Guide

Install LiteClient from the VS Code Marketplace, Open VSX, or VSIX.

Quickstart

Send your first request, set up environments, and organize collections.

OAuth 2.0 Guide

Configure Auth Code, PKCE, and Client Credentials flows inside LiteClient.

Scripting API

Use the Postman-compatible `pm` API for pre-request and post-response automation.

Postman Migration

Move existing Postman collections, auth, variables, and scripts into LiteClient.

Changelog

Track new releases, shipped features, and product improvements over time.

Blazing Fast

Native implementation with zero startup time. It restores your workspace instantly without the bloat.

Total Privacy

No cloud accounts, no forced syncing, and absolutely zero telemetry. Your data stays on your machine.

Pure Native

Integrates seamlessly into your IDE using native components, trees, and themes for zero friction.

Everything you need, nothing you don't.

Collection Runner

Run collections and folders with real-time progress, results, and per-request drill-downs

Scripts & Tests

Run pre-request and post-response scripts with a Postman-style `pm` API and built-in test reporting

Environment Manager

Manage initial values, current values, secrets, and enabled state in a dedicated table UI

Collection Variables

Use collection-scoped variables with autocomplete, request metadata visibility, and Postman round-tripping

Response Formatting

Pretty-print JSON, HTML, and XML responses automatically, with a manual format action when you want it

OAuth 2.0 & PKCE

Support for Auth Code, PKCE, and Client Credentials with token caching and refresh

Workspace Storage

Store collections, environments, and history in `.liteclient/` for Git-friendly team workflows

Variable Autocomplete

Trigger suggestions with `{{` in URLs, headers, params, and request bodies

Cookies & Run History

Persist per-domain cookies and keep an immutable execution ledger for replay, debugging, and runner output

Postman Import/Export

Bring over requests, auth, variables, and scripts without rebuilding collections by hand

Multi-File Requests

Create standalone `.lcreq` request files, open multiple tabs, and work with files directly in your workspace

Frequently asked questions

Clear answers for the product and comparison questions people search most often.