Postmantle

by sadikagadir@gmail.com · Developer Tools

Manifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

Professional API testing, recording, and management tool with Chrome DevTools integration

Users

−2 in 30 days

Rating

5.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#243K

#203K among extensions

Version

1.0.2

updated 6 Mar 2026

Users

monthly, 9 months

Latest, 16 Oct 2026: 5 usersMove the mouse over the chart for any month

Ratings count

monthly, 9 months

Latest, 16 Oct 2026: 3 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Postmantle

Postmantle - Professional API Testing & Management Tool Transform your API development workflow with Postmantle, a powerful Chrome DevTools extension for recording, testing, and managing API requests. ✨ KEY FEATURES: • Native DevTools Integration - Works seamlessly in Chrome DevTools • Automatic Request Recording - Capture all API requests in real-time • Bulk API Testing - Test multiple endpoints simultaneously • PDF Reports - Generate professional test reports • Project & Collection Management - Organize APIs efficiently • Token Management - Auto-detect and refresh authentication tokens • Dark Mode - Beautiful, professional interface • Export/Import - Backup and restore your data 🔒 PRIVACY FIRST: All data stored locally in your browser. No external data collection. 🎯 PERFECT FOR: • API Developers • QA Engineers • DevOps Teams • Backend Developers • Anyone working with REST APIs 📚 FEATURES IN DETAIL: - Record API requests automatically while browsing - Filter and search through captured requests - Save requests into organized collections - Bulk test multiple APIs with one click - Compare responses and detect changes - Export test results as PDF reports - Auto-detect authentication tokens - Update expired tokens easily - Import/export your data as JSON 🚀 GET STARTED: 1. Install the extension 2. Open Chrome DevTools (F12) 3. Find the "Postmantle" tab 4. Start recording APIs! 💼 Professional tool built by developers, for developers.