Best Postman Alternatives & Competitors 2026

Postman is the ultimate API platform for developers, offering tools for collaboration, testing, and automation. Join millions of users building better APIs faster.

A popular AI Developer Tools tool with 2.8M monthly visits. We've analyzed 18 similar AI tools to help you compare features, popularity, and ratings. Find the perfect alternative for your needs.

Quick Comparison

(Top 5 by Traffic)
ToolVisitsTop MarketGrowthRating
Postman
PostmanCurrent
2.8M
🇮🇳
India22.1%
-1.1%
-
Retool
Retool
1.7M
🇺🇸
United States31.5%
+5.5%
-
LambdaTest
LambdaTest
895.5K
🇮🇳
India22.0%
+10.1%
-
Katalon
Katalon
293.9K
🇮🇳
India24.9%
+8.7%
-
testsigma
testsigma
284.2K
🇮🇳
India24.8%
+11.3%
-
Applitools
Applitools
276.9K
🇺🇸
United States13.2%
+38.5%
-
Data based on traffic metrics from December 2025

Top 18 Alternatives to Postman

HTTPie AI
🌱Emerging Tool

HTTPie is a powerful, user-friendly API testing tool that simplifies interactions with APIs, making it a favorite among developers and testers.

US
10.75%
|
96.5K
|
5.0
Slack
🚀Super High Traffic

Slack is an AI-powered work platform that streamlines collaboration, automates workflows, and connects teams, making it easier to get things done.

US
29.71%
|
118.8M
|
5.0
Katalon
Medium Scale

Katalon is the all-in-one test automation platform that combines AI, flexibility, and ease of use to help teams deliver high-quality software faster.

IN
24.91%
|
293.9K
|
5.0
Superagent
🌱Emerging Tool

Superagent enhances teamwork by integrating AI into your projects.

US
35.19%
|
15.0K
|
4.0
testsigma
Medium Scale

Testsigma is the easiest way to automate testing—AI does the heavy lifting, so you don’t have to. Perfect for teams wanting speed, coverage, and zero hassle.

IN
24.84%
|
284.2K
|
5.0
Retool
📈High Traffic

Retool is the ultimate platform for developers to build custom internal software quickly, with seamless integrations and powerful tools.

US
31.50%
|
1.7M
|
5.0
Latitude
🌱Emerging Tool

Latitude is the go-to platform for refining and deploying AI prompts, offering tools for tracking, testing, and collaboration.

US
12.49%
|
40.7K
|
4.0
LambdaTest
Medium Scale

LambdaTest simplifies testing with AI, real devices, and unmatched speed—trusted by 2M+ users globally.

IN
22.00%
|
895.5K
|
5.0
Applitools
Medium Scale

Applitools is the ultimate AI-powered testing platform for faster, more accurate, and maintenance-free app testing.

US
13.15%
|
276.9K
|
5.0
Alfred AI
🌱Emerging Tool

Alfred is the ultimate AI assistant for modern developer portals, streamlining API integration, testing, and documentation to boost efficiency and reduce costs.

US
7.50%
|
88.1K
|
5.0
CodeGPT
Medium Scale

CodeGPT is the ultimate AI-powered development platform, offering specialized AI agents, deep codebase understanding, and enterprise-ready security to supercharge your software development process.

IN
10.97%
|
278.8K
|
5.0
Weights & Biases
📈High Traffic

Weights & Biases is the ultimate AI developer platform for building, managing, and tracking AI models and applications with confidence.

US
31.53%
|
2.1M
|
5.0
Fine - AI Agents for Software Development
🌱Emerging Tool

Fine is the ultimate AI coding tool for startups, helping developers ship faster and focus on innovation. With features like automated coding, testing, and PR management, Fine is like having an extra team member.

US
24.15%
|
17.7K
|
4.0
Devzery
🌱Emerging Tool

Devzery is an AI-powered API testing platform that automates regression, integration, and load testing, ensuring faster, bug-free software releases.

US
14.67%
|
87.0K
|
5.0
Coda
📈High Traffic

Coda is the ultimate collaborative workspace, blending docs, spreadsheets, apps, and AI to help teams work smarter and faster.

US
30.97%
|
2.9M
|
5.0
Sourcegraph
Medium Scale

Sourcegraph is a game-changer for software development, using AI to automate tasks and improve efficiency in large codebases. It’s trusted by top companies worldwide to accelerate innovation.

US
28.05%
|
383.2K
|
5.0
DevRev
Medium Scale

DevRev is a conversational AI platform that boosts collaboration, efficiency, and decision-making for customer support and software development teams.

IN
58.88%
|
232.1K
|
5.0
Planable
Medium Scale

Planable is the easiest way to plan, collaborate, and schedule social media posts—trusted by 30,000+ marketers.

US
17.65%
|
848.1K
|
5.0
Back to Postman Review