Postman Alternative for Android and iPhone

Short answer: Postman is built around its desktop and web apps. If you want to send API requests from a phone, try API Client - REST HTTP Tester on iPhone and Android, or Hoppscotch in your mobile browser. Use Postman or Insomnia on a computer for large team workflows.

We make API Client - REST HTTP Tester, so weigh our pick accordingly. The other options here are good at what they do, and we say where they fit better.

What you need from an API client on a phone

Send GET, POST, PUT, PATCH and DELETE with headers and a body.
See status code, response time and readable JSON.
Keep requests organised, with environments for dev, staging and production.
Import a cURL command someone pasted in chat.

Options

API Client - REST HTTP Tester (iPhone, iPad and Android): paste a URL, choose the method, and read status, timing, headers and a collapsible JSON tree. It has environments with {{variables}}, collections, history, and cURL import and export. No account and no cloud sync.
Hoppscotch: an open-source web API client that works in a mobile browser, so it needs a connection.
Postman and Insomnia: full-featured desktop clients with team collaboration, test scripts and mock servers. Better when you work at a computer.

When a phone client is enough

Checking if an endpoint is up, reproducing a bug report, trying a webhook target, or sending a quick request while away from your laptop.

FAQ

Is there a Postman app for Android or iPhone? Postman is mainly a desktop and web product. API Client - REST HTTP Tester is a dedicated phone app for the same basic job.

Can I import cURL commands on a phone? Yes, paste one into API Client and the request is built.

Do I need an account? No.

Download API Client - REST HTTP Tester on the App Store · Get it on Google Play for Android

~/cosmovex/untitled.md unsaved

Your work keeps moving.So should you.

Built for the hours spent watching a terminal wait. Something new from this studio is nearly ready — and it isn't for your desk.

Be first to hearComing soon. Details land in the studio newsletter — the same one below, nothing extra to join.

Meanwhile, the toolkit

~/cosmovex/home.md · rendered with Markdown Editor & MD Viewer

A Markdown editor good enough to write its own homepage.

This page is a Markdown document. You're reading the rendered preview — press or hit if you don't believe it. That round trip — plain text in, a clean document out — is what Markdown Editor & MD Viewer does on your Android phone. Free, offline, no account.

markdown Live Server — 2 editors, 1 file

# Two cursors, one document
My phone is hosting this file over Wi-Fi,
and my desktop is ed
> nothing leaves the device — it's your Wi-Fi, your file

▶ Install free on Google Play★ 4.7 on Play · 10,000+ installs · free

## New in v1.5 — watch it work

✓Version History — every save snapshotted; browse and restore

✓Works offline — no account, no cloud — files stay on your device

## Just shipped

Both offline-first, both free to try.

NEWAspenote: Offline Voice to TextIt writes it down. On your phone.Runs Offline · Nothing Uploaded · Summary & Actions

NEWHostPilot: PHP Server & SQLTurn your phone into a web server.PHP 8.4 & SQLite · Stays Running · SQL Console

## The rest of the toolkit

One app per job. No 200 MB do-everything bloat.

App	Job	Rating
Markdown Editor & MD Viewer	Write and preview Markdown on mobile.	4.7★ · 5K+	install ios
WebEva: Build Websites & Code	Build websites from your phone.	4.4★ · 5K+	install ios
PDF Viewer & Editor - AI	Edit, convert & sign PDFs on mobile.	4.9★ · 1K+	install ios
HTML Viewer & Editor - Code	View & edit HTML on mobile.	4.6★ · 1K+	install ios
SQLite Editor & SQL Learner	Manage SQLite databases on mobile.	5.0★ · 1K+	install
Python IDE - Offline Compiler	Write and run Python on your phone.	4.1★ · 1K+	install
Aspenote: Offline Voice to Text	It writes it down. On your phone.	—	install
HostPilot: PHP Server & SQL	Turn your phone into a web server.	—	install
DevBuddy: Offline Dev Toolkit	Your pocket developer toolkit.	—	install ios
ShellPilot - Batch SSH Client	SSH terminal & SFTP on the go.	— · 1K+	install ios
API Client -REST & HTTP Tester	Test APIs anywhere, anytime.	— · 500+	install ios
JSON Editor - Viewer & Format	View, edit & format JSON instantly.	— · 500+	install ios
Java & Kotlin Compiler IDE	Write and run Java on your phone.	4.4★ · 1K+	install
XML Viewer & Editor	View, edit & validate XML on mobile.	— · 5K+	install ios
Open CSV — Viewer & Editor	Open and edit CSV files on mobile.	— · 500+	install ios
JavaScript Editor — React IDE	Run JavaScript and React on your phone.	— · 1K+	install
Image to SVG Converter, Viewer	Convert images to SVG and edit vectors on mobile.	— · 1K+	install
YAML / YML Viewer & Editor	View, edit & validate YAML instantly.	— · 500+	install
Network Toolkit: WiFi IP Tools	Network utilities and diagnostic tools.	— · 500+	install
Code Editor - Text & Notepad	Edit text files on mobile.	— · 500+	install
C / C++ Compiler IDE	Compile & run C and C++ on your phone.	—	install
Diagram Maker: Flow & ERD	Draw flowcharts & ERDs on mobile.	—	install
QR Scanner & Generator	Scan codes with confidence	—	install
Zip Extractor — Unzip RAR 7Z	Open ZIP, RAR, and 7Z files	—	install
PromptCrate: AI Prompt Manager	Your personal AI prompt library	—	install

## Free web tools

Background Remover Snapglow SQLite Viewer QueryDrill

## Questions, answered

Is there a free Markdown editor for Android?

Yes — Markdown Editor & MD Viewer is free on Google Play. It gives you a split-view editor with live preview, syntax highlighting, and HTML/PDF export, and it works fully offline with no account.

Can I edit Markdown from my phone on a desktop browser?

Markdown Editor & MD Viewer includes a Live Server: your phone hosts the document over Wi-Fi and you edit it from any desktop browser with two-way live sync. The file never leaves your device.

Can I make Mermaid diagrams on Android?

Yes — the built-in Mermaid Studio turns plain text into flowcharts, sequence and class diagrams, with pan/zoom and SVG export, right on your phone.

Can I turn Markdown into slides or a PDF on my phone?

Presentation Mode turns any Markdown document into a fullscreen slide deck, and export produces styled HTML or print-ready PDF — all generated on-device.

## From the journal

We're a small studio with one rule: each app does a single job well, works offline, and never asks who you are.