MQTTX alternatives: 2 apps ranked by verified data

Facts checked Nov 1, 2026AppBreakup editorialHow we rank

Common reasons people leave MQTTX: MQTT only; you need a separate client for HTTP or gRPC APIs, and the site and app steer users toward EMQ's paid EMQX Cloud. We ranked 2 alternatives by how directly each one replaces MQTTX, then by reviews, real visits and how recently each app's facts were checked against its own website. Insomnia currently ranks first.

Quick comparison

#	App	Pricing	Open source	Platforms	Verified facts	Score
1	Insomnia	Open source	Yes	Windows, macOS, Linux	3 of 3	61.8
2	Postman	Free plan + paid	No	Web, Windows, macOS +1	3 of 5	60.6

1. InsomniaTop pick
Best for: Developers who want an open-source desktop API client
Open sourceWindows, macOS, Linux
61.8
score / 100
Why switch from MQTTX
A general API client for teams that mostly test HTTP and gRPC services.
Pros
Open source
Local, Git or cloud storage
Clean interface
Cons
Account prompts in recent versions
Collaboration needs paid plans
Visit Insomnia Details and reviews
How this score is calculated
Editorial fit ×0.377
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.15100
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Insomnia a good MQTTX alternative?
Verified facts
3 of 3 verified
Open source
Yes
Checked Oct 29, 2026github.com(opens source in a new tab)
Maker
Kong
Checked Oct 29, 2026insomnia.rest(opens source in a new tab)
Free plan
Yes
Checked Oct 29, 2026insomnia.rest(opens source in a new tab)
2. Postman
Best for: Teams that want a full API lifecycle platform
Free plan + paidWeb, Windows, macOS, Linux
60.6
score / 100
Why switch from MQTTX
Handles MQTT alongside HTTP, GraphQL and WebSocket requests in one workspace.
Pros
Covers design, testing, docs and monitoring
Supports REST, GraphQL, gRPC
Huge public API network
Cons
Pushes cloud accounts and sync
Heavy for simple request testing
Visit Postman Details and reviews
How this score is calculated
Editorial fit ×0.387
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.1572
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Postman a good MQTTX alternative?
Verified facts
3 of 5 verified
Free plan
Yes
Checked Nov 1, 2026postman.com(opens source in a new tab)
Protocols
REST, GraphQL, gRPC, WebSocket
Not checked yetpostman.com(opens source in a new tab)
Platforms
Web, Windows, macOS, Linux
Not checked yetpostman.com(opens source in a new tab)
Starting price
$9 a month, billed annually (Solo)
Checked Nov 1, 2026postman.com(opens source in a new tab)
Team plan
$19 per user/month, billed annually
Checked Nov 1, 2026postman.com(opens source in a new tab)